add generate heper config

definition/generate/bootstrap/bootstrap.go

@@ -16,14 +16,13 @@ var tpls embed.FS
 
 type Boot struct {
 	Config
+	*pkg.Packages
 
-	imp       *pkg.Imports
 	Configure []string
-	OutName   string
 }
 
-func (b Boot) Imports() []pkg.Import {
-	return b.imp.Imports()
+func (b Boot) Pkg() string {
+	return pkg.Pkg(b.FullPkg())
 }
 
 type Config interface {
@@ -33,13 +32,12 @@ type Config interface {
 	Prefix() string
 	Suffix() string
 	FullPkg() string
-	Pkg() string
 }
 
 func Bootstrap(ctx context.Context, cfg Config) (string, error) {
 	fInfo, err := os.Stat(cfg.File())
 	if err != nil {
-		return "", fmt.Errorf("stat:%w", err)
+		return "", fmt.Errorf("stat[%v]:%w", cfg.File(), err)
 	}
 
 	pkgPath, err := pkg.ByPath(ctx, cfg.File(), fInfo.IsDir())
@@ -61,17 +59,19 @@ func Bootstrap(ctx context.Context, cfg Config) (string, error) {
 		Adds(
 			"context",
 			"gitoa.ru/go-4devs/config/definition",
+			"gitoa.ru/go-4devs/config",
+			"gitoa.ru/go-4devs/config/definition/generate/view",
+			"gitoa.ru/go-4devs/config/param",
 			"gitoa.ru/go-4devs/config/definition/generate",
 			"os",
+			"io",
 			"fmt",
-			"go/format",
 			pkgPath,
 		)
 
 	data := Boot{
-		imp:       imports,
+		Packages:  imports,
 		Configure: cfg.Methods(),
-		OutName:   fInfo.Name()[0:len(fInfo.Name())-3] + "_config.go",
 		Config:    cfg,
 	}
 

definition/generate/bootstrap/bootstrap.go.tpl

@@ -10,50 +10,34 @@ import (
 )
 
 func main() {
-	if err := run(); err != nil {
+	if err := run(os.Stdout); err != nil {
 		fmt.Fprintln(os.Stderr, err)
 		os.Exit(1)
 	}
 }
 
-func run() error {
+func run(f io.Writer) error {
 	ctx := context.Background()
 
-	f, err := os.Create("{{.OutName}}")
-	if err != nil {
-		return err
-	}
-
-	defs:=make([]generate.Input,0)
+	defs:=make([]config.Group,0)
 {{ range .Configure }} 
-	def{{.}} := definition.New()
+	params{{.}} := param.New(
+	{{- if $.SkipContext }}view.WithSkipContext,{{ end }}
+	view.WithStructName("{{$.Prefix}}_{{.}}_{{$.Suffix}}"),
+	view.WithStructPrefix("{{$.Prefix}}"),
+  view.WithStructSuffix("{{$.Suffix}}"),
+	)
+
+	def{{.}} := definition.New().With(params{{.}})
 	if err := {{$.Pkg}}.{{.}}(ctx, def{{.}}); err != nil {
 		return err
 	}
-	defs = append(defs,generate.NewInput("{{.}}",def{{.}}))
+	defs = append(defs,def{{.}})
 {{ end }}
 
-	opts := make([]generate.Option,0)
-	{{ if .SkipContext }}opts = append(opts, generate.WithSkipContext){{ end }}
-	opts = append(opts, 
-		generate.WithPrefix("{{.Prefix}}"),
-		generate.WithSuffix("{{.Suffix}}"),
-		generate.WithFullPkg("{{.FullPkg}}"),
-	)
-
-	if gerr := generate.Run(ctx,generate.NewConfig(opts...),f, defs...);gerr != nil {
+	if gerr := generate.Run(ctx,"{{.FullPkg}}",f, defs...);gerr != nil {
 		return gerr
 	}
 
-	in, err := os.ReadFile(f.Name())
-	if err != nil {
-		return err
-	}
-
-	out, err := format.Source(in)
-	if err != nil {
-		return err
-	}
-
-	return os.WriteFile(f.Name(), out, 0644)
+  return nil
 }

definition/generate/command/generate.go

@@ -0,0 +1,68 @@
+package command
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/definition/generate"
+	"gitoa.ru/go-4devs/config/provider/chain"
+	"gitoa.ru/go-4devs/console"
+	"gitoa.ru/go-4devs/console/output"
+)
+
+const Name = "config:generate"
+
+func Handle(ctx context.Context, in config.Provider, out output.Output, next console.Action) error {
+	var name string
+
+	value, err := in.Value(ctx, generate.OptionFile)
+	if err == nil {
+		name = value.String()
+	}
+
+	if name == "" {
+		name = os.Getenv("GOFILE")
+	}
+
+	parser, err := generate.Parse(ctx, name)
+	if err != nil {
+		return fmt.Errorf("parse:%w", err)
+	}
+
+	mem, merr := generate.NewMemoryProvider(name,
+		generate.WithOutName(parser.OutName()),
+		generate.WithFullPkg(parser.FullPkg()),
+		generate.WithMethods(parser.Methods()...),
+	)
+	if merr != nil {
+		return fmt.Errorf("mem provider:%w", merr)
+	}
+
+	return next(ctx, chain.New(in, mem), out)
+}
+
+func Execute(ctx context.Context, in config.Provider, _ output.Output) error {
+	cfg := generate.NewConfigure(ctx, in)
+
+	if err := generate.Generate(ctx, cfg); err != nil {
+		return fmt.Errorf("%w", err)
+	}
+
+	return nil
+}
+
+func Command() *console.Command {
+	return &console.Command{
+		Description: "",
+		Help:        "",
+		Version:     "v0.0.1",
+		Hidden:      false,
+		Prepare:     nil,
+		Handle:      Handle,
+		Name:        Name,
+		Execute:     Execute,
+		Configure:   generate.Configure,
+	}
+}

definition/generate/configure.go

@@ -0,0 +1,134 @@
+package generate
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/definition/option"
+	"gitoa.ru/go-4devs/config/provider/memory"
+)
+
+const (
+	OptionFile        = "file"
+	optionPrefix      = "prefix"
+	optionSuffix      = "suffix"
+	optionSkipContext = "skip-context"
+	optionBuildTags   = "build-tags"
+	optionOutName     = "out-name"
+	optionMethod      = "method"
+	optionFullPkg     = "full-pkg"
+)
+
+func WithPrefix(in string) func(*memory.Map) error {
+	return func(m *memory.Map) error {
+		err := m.AppendOption(in, optionPrefix)
+		if err != nil {
+			return fmt.Errorf("append %v:%w", optionPrefix, err)
+		}
+
+		return nil
+	}
+}
+
+func WithSuffix(in string) func(*memory.Map) error {
+	return func(m *memory.Map) error {
+		err := m.AppendOption(in, optionSuffix)
+		if err != nil {
+			return fmt.Errorf("append %v:%w", optionSuffix, err)
+		}
+
+		return nil
+	}
+}
+
+func WithSkipContext(in bool) func(*memory.Map) error {
+	return func(m *memory.Map) error {
+		err := m.AppendOption(strconv.FormatBool(in), optionSkipContext)
+		if err != nil {
+			return fmt.Errorf("append %v:%w", optionSkipContext, err)
+		}
+
+		return nil
+	}
+}
+
+func WithBuildTags(in string) func(*memory.Map) error {
+	return func(m *memory.Map) error {
+		err := m.AppendOption(in, optionBuildTags)
+		if err != nil {
+			return fmt.Errorf("append %v:%w", optionBuildTags, err)
+		}
+
+		return nil
+	}
+}
+
+func WithOutName(in string) func(*memory.Map) error {
+	return func(m *memory.Map) error {
+		err := m.AppendOption(in, optionOutName)
+		if err != nil {
+			return fmt.Errorf("append %v:%w", optionOutName, err)
+		}
+
+		return nil
+	}
+}
+
+func WithMethods(methods ...string) func(*memory.Map) error {
+	return func(m *memory.Map) error {
+		for _, method := range methods {
+			err := m.AppendOption(method, optionMethod)
+			if err != nil {
+				return fmt.Errorf("append %v:%w", optionMethod, err)
+			}
+		}
+
+		return nil
+	}
+}
+
+func WithFullPkg(in string) func(*memory.Map) error {
+	return func(m *memory.Map) error {
+		err := m.AppendOption(in, optionFullPkg)
+		if err != nil {
+			return fmt.Errorf("append %v:%w", optionFullPkg, err)
+		}
+
+		return nil
+	}
+}
+
+func NewMemoryProvider(file string, opts ...func(*memory.Map) error) (*memory.Map, error) {
+	cfg := new(memory.Map)
+
+	err := cfg.AppendOption(file, OptionFile)
+	if err != nil {
+		return nil, fmt.Errorf("append %v:%w", OptionFile, err)
+	}
+
+	for idx, opt := range opts {
+		err = opt(cfg)
+		if err != nil {
+			return nil, fmt.Errorf("opt[%d]:%w", idx, err)
+		}
+	}
+
+	return cfg, nil
+}
+
+func Configure(_ context.Context, def config.Definition) error {
+	def.Add(
+		option.String(OptionFile, "set file", option.Required),
+		option.String(optionPrefix, "struct prefix"),
+		option.String(optionSuffix, "struct suffix", option.Default("Config")),
+		option.Bool(optionSkipContext, "skip contect to method"),
+		option.String(optionBuildTags, "add build tags"),
+		option.String(optionOutName, "set out name"),
+		option.String(optionMethod, "set method", option.Slice),
+		option.String(optionFullPkg, "set full pkg"),
+	)
+
+	return nil
+}

definition/generate/configure_config.go

@@ -0,0 +1,231 @@
+package generate
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log"
+
+	"gitoa.ru/go-4devs/config"
+)
+
+func NewConfigure(ctx context.Context, prov config.Provider) ConfigureConfig {
+	return ConfigureConfig{
+		Provider: prov,
+		ctx:      ctx,
+		handle: func(err error) {
+			if !errors.Is(err, config.ErrNotFound) {
+				log.Print(err)
+			}
+		},
+	}
+}
+
+type ConfigureConfig struct {
+	config.Provider
+
+	ctx    context.Context //nolint:containedctx
+	handle func(err error)
+}
+
+func (i ConfigureConfig) ReadBuildTags() (string, error) {
+	val, verr := i.Value(i.ctx, optionBuildTags)
+	if verr != nil {
+		return "", fmt.Errorf("get %v:%w", optionBuildTags, verr)
+	}
+
+	data, err := val.ParseString()
+	if err != nil {
+		return "", fmt.Errorf("parse %v:%w", optionBuildTags, err)
+	}
+
+	return data, nil
+}
+
+func (i ConfigureConfig) BuildTags() string {
+	data, err := i.ReadBuildTags()
+	if err != nil {
+		i.handle(err)
+
+		return ""
+	}
+
+	return data
+}
+
+func (i ConfigureConfig) ReadOutName() (string, error) {
+	val, err := i.Value(i.ctx, optionOutName)
+	if err != nil {
+		return "", fmt.Errorf("get %v:%w", optionOutName, err)
+	}
+
+	data, derr := val.ParseString()
+	if derr != nil {
+		return "", fmt.Errorf("parse %v:%w", optionOutName, derr)
+	}
+
+	return data, nil
+}
+
+func (i ConfigureConfig) OutName() string {
+	data, err := i.ReadOutName()
+	if err != nil {
+		i.handle(err)
+
+		return ""
+	}
+
+	return data
+}
+
+func (i ConfigureConfig) ReadFile() (string, error) {
+	val, err := i.Value(i.ctx, OptionFile)
+	if err != nil {
+		return "", fmt.Errorf("get %v:%w", OptionFile, err)
+	}
+
+	data, derr := val.ParseString()
+	if derr != nil {
+		return "", fmt.Errorf("parse %v:%w", OptionFile, derr)
+	}
+
+	return data, nil
+}
+
+func (i ConfigureConfig) File() string {
+	data, err := i.ReadFile()
+	if err != nil {
+		i.handle(err)
+
+		return ""
+	}
+
+	return data
+}
+
+func (i ConfigureConfig) ReadMethods() ([]string, error) {
+	val, err := i.Value(i.ctx, optionMethod)
+	if err != nil {
+		return nil, fmt.Errorf("get %v:%w", optionMethod, err)
+	}
+
+	var data []string
+
+	perr := val.Unmarshal(&data)
+	if perr != nil {
+		return nil, fmt.Errorf("unmarshal %v:%w", optionMethod, perr)
+	}
+
+	return data, nil
+}
+
+func (i ConfigureConfig) Methods() []string {
+	data, err := i.ReadMethods()
+	if err != nil {
+		i.handle(err)
+
+		return nil
+	}
+
+	return data
+}
+
+func (i ConfigureConfig) ReadSkipContext() (bool, error) {
+	val, err := i.Value(i.ctx, optionSkipContext)
+	if err != nil {
+		return false, fmt.Errorf("get %v:%w", optionSkipContext, err)
+	}
+
+	data, derr := val.ParseBool()
+	if derr != nil {
+		return false, fmt.Errorf("parse %v:%w", optionSkipContext, derr)
+	}
+
+	return data, nil
+}
+
+func (i ConfigureConfig) SkipContext() bool {
+	data, err := i.ReadSkipContext()
+	if err != nil {
+		i.handle(err)
+
+		return false
+	}
+
+	return data
+}
+
+func (i ConfigureConfig) ReadPrefix() (string, error) {
+	val, err := i.Value(i.ctx, optionPrefix)
+	if err != nil {
+		return "", fmt.Errorf("get %v: %w", optionPrefix, err)
+	}
+
+	data, derr := val.ParseString()
+	if derr != nil {
+		return "", fmt.Errorf("parse %v:%w", optionPrefix, derr)
+	}
+
+	return data, nil
+}
+
+func (i ConfigureConfig) Prefix() string {
+	val, err := i.ReadPrefix()
+	if err != nil {
+		i.handle(err)
+
+		return ""
+	}
+
+	return val
+}
+
+func (i ConfigureConfig) ReadSuffix() (string, error) {
+	val, err := i.Value(i.ctx, optionSuffix)
+	if err != nil {
+		return "", fmt.Errorf("get %v:%w", optionSuffix, err)
+	}
+
+	data, derr := val.ParseString()
+	if derr != nil {
+		return "", fmt.Errorf("parse %v:%w", optionSuffix, derr)
+	}
+
+	return data, nil
+}
+
+func (i ConfigureConfig) Suffix() string {
+	data, err := i.ReadSuffix()
+	if err != nil {
+		i.handle(err)
+
+		return ""
+	}
+
+	return data
+}
+
+func (i ConfigureConfig) ReadFullPkg() (string, error) {
+	val, err := i.Value(i.ctx, optionFullPkg)
+	if err != nil {
+		return "", fmt.Errorf("get %v:%w", optionFullPkg, err)
+	}
+
+	data, derr := val.ParseString()
+	if derr != nil {
+		return "", fmt.Errorf("parse %v:%w", optionFullPkg, derr)
+	}
+
+	return data, nil
+}
+
+func (i ConfigureConfig) FullPkg() string {
+	data, err := i.ReadFullPkg()
+	if err != nil {
+		i.handle(err)
+
+		return ""
+	}
+
+	return data
+}

definition/generate/example/config_config.go

@@ -1,206 +0,0 @@
-// Code generated gitoa.ru/go-4devs/config DO NOT EDIT.
-package example
-
-import (
-	context "context"
-	fmt "fmt"
-	config "gitoa.ru/go-4devs/config"
-)
-
-func WithInputConfigLog(log func(context.Context, string, ...any)) func(*InputConfig) {
-	return func(ci *InputConfig) {
-		ci.log = log
-	}
-}
-
-func NewInputConfig(prov config.Provider, opts ...func(*InputConfig)) InputConfig {
-	i := InputConfig{
-		Provider: prov,
-		log: func(_ context.Context, format string, args ...any) {
-			fmt.Printf(format, args...)
-		},
-	}
-
-	for _, opt := range opts {
-		opt(&i)
-	}
-
-	return i
-}
-
-type InputConfig struct {
-	config.Provider
-	log func(context.Context, string, ...any)
-}
-
-// readTest test string.
-func (i InputConfig) readTest(ctx context.Context) (v string, e error) {
-	val, err := i.Value(ctx, "test")
-	if err != nil {
-		return v, fmt.Errorf("read [%v]:%w", []string{"test"}, err)
-
-	}
-
-	return val.ParseString()
-
-}
-
-// ReadTest test string.
-func (i InputConfig) ReadTest() (string, error) {
-	return i.readTest(context.Background())
-}
-
-// Test test string.
-func (i InputConfig) Test() string {
-	val, err := i.readTest(context.Background())
-	if err != nil {
-		i.log(context.Background(), "get [%v]: %v", []string{"test"}, err)
-	}
-
-	return val
-}
-
-type InputConfigUser struct {
-	InputConfig
-}
-
-// User configure user.
-func (i InputConfig) User() InputConfigUser {
-	return InputConfigUser{i}
-}
-
-// readName name.
-func (i InputConfigUser) readName(ctx context.Context) (v string, e error) {
-	val, err := i.Value(ctx, "user", "name")
-	if err != nil {
-		i.log(context.Background(), "read [%v]: %v", []string{"user", "name"}, err)
-
-		return "4devs", nil
-	}
-
-	return val.ParseString()
-
-}
-
-// ReadName name.
-func (i InputConfigUser) ReadName(ctx context.Context) (string, error) {
-	return i.readName(ctx)
-}
-
-// Name name.
-func (i InputConfigUser) Name(ctx context.Context) string {
-	val, err := i.readName(ctx)
-	if err != nil {
-		i.log(ctx, "get [%v]: %v", []string{"user", "name"}, err)
-	}
-
-	return val
-}
-
-// readPass password.
-func (i InputConfigUser) readPass(ctx context.Context) (v string, e error) {
-	val, err := i.Value(ctx, "user", "pass")
-	if err != nil {
-		return v, fmt.Errorf("read [%v]:%w", []string{"user", "pass"}, err)
-
-	}
-
-	return val.ParseString()
-
-}
-
-// ReadPass password.
-func (i InputConfigUser) ReadPass(ctx context.Context) (string, error) {
-	return i.readPass(ctx)
-}
-
-// Pass password.
-func (i InputConfigUser) Pass(ctx context.Context) string {
-	val, err := i.readPass(ctx)
-	if err != nil {
-		i.log(ctx, "get [%v]: %v", []string{"user", "pass"}, err)
-	}
-
-	return val
-}
-
-type InputConfigLog struct {
-	InputConfig
-}
-
-// Log configure logger.
-func (i InputConfig) Log() InputConfigLog {
-	return InputConfigLog{i}
-}
-
-// readLevel log level.
-func (i InputConfigLog) readLevel(ctx context.Context) (v Level, e error) {
-	val, err := i.Value(ctx, "log", "level")
-	if err != nil {
-		return v, fmt.Errorf("read [%v]:%w", []string{"log", "level"}, err)
-
-	}
-
-	pval, perr := val.ParseString()
-	if perr != nil {
-		return v, fmt.Errorf("read [%v]:%w", []string{"log", "level"}, perr)
-	}
-
-	return v, v.UnmarshalText([]byte(pval))
-}
-
-// ReadLevel log level.
-func (i InputConfigLog) ReadLevel(ctx context.Context) (Level, error) {
-	return i.readLevel(ctx)
-}
-
-// Level log level.
-func (i InputConfigLog) Level(ctx context.Context) Level {
-	val, err := i.readLevel(ctx)
-	if err != nil {
-		i.log(ctx, "get [%v]: %v", []string{"log", "level"}, err)
-	}
-
-	return val
-}
-
-type InputConfigLogService struct {
-	InputConfigLog
-	service string
-}
-
-// Service servise logger.
-func (i InputConfigLog) Service(key string) InputConfigLogService {
-	return InputConfigLogService{i, key}
-}
-
-// readLevel log level.
-func (i InputConfigLogService) readLevel(ctx context.Context) (v Level, e error) {
-	val, err := i.Value(ctx, "log", i.service, "level")
-	if err != nil {
-		return v, fmt.Errorf("read [%v]:%w", []string{"log", i.service, "level"}, err)
-
-	}
-
-	pval, perr := val.ParseString()
-	if perr != nil {
-		return v, fmt.Errorf("read [%v]:%w", []string{"log", i.service, "level"}, perr)
-	}
-
-	return v, v.UnmarshalText([]byte(pval))
-}
-
-// ReadLevel log level.
-func (i InputConfigLogService) ReadLevel(ctx context.Context) (Level, error) {
-	return i.readLevel(ctx)
-}
-
-// Level log level.
-func (i InputConfigLogService) Level(ctx context.Context) Level {
-	val, err := i.readLevel(ctx)
-	if err != nil {
-		i.log(ctx, "get [%v]: %v", []string{"log", i.service, "level"}, err)
-	}
-
-	return val
-}

definition/generate/example/example.go

@@ -3,13 +3,15 @@ package example
 import (
 	"context"
 
-	"gitoa.ru/go-4devs/config/definition"
+	configs "gitoa.ru/go-4devs/config"
 	"gitoa.ru/go-4devs/config/definition/generate/view"
 	"gitoa.ru/go-4devs/config/definition/group"
 	"gitoa.ru/go-4devs/config/definition/option"
 	"gitoa.ru/go-4devs/config/definition/proto"
 )
 
+//go:generate go run ../../../cmd/config/main.go config:generate
+
 type Level string
 
 func (l *Level) UnmarshalText(in []byte) error {
@@ -19,13 +21,13 @@ func (l *Level) UnmarshalText(in []byte) error {
 	return nil
 }
 
-func Config(_ context.Context, def *definition.Definition) error {
+func Example(_ context.Context, def configs.Definition) error {
 	def.Add(
 		option.String("test", "test string", view.WithSkipContext),
 		group.New("user", "configure user",
 			option.String("name", "name", option.Default("4devs")),
 			option.String("pass", "password"),
-		),
+		).With(view.WithContext),
 
 		group.New("log", "configure logger",
 			option.New("level", "log level", Level("")),

definition/generate/example/example_config.go

@@ -0,0 +1,153 @@
+// Code generated gitoa.ru/go-4devs/config DO NOT EDIT.
+package example
+
+import (
+	"context"
+	"fmt"
+	"gitoa.ru/go-4devs/config"
+)
+
+func WithExampleConfigHandle(fn func(context.Context, error)) func(*ExampleConfig) {
+	return func(ci *ExampleConfig) {
+		ci.handle = fn
+	}
+}
+
+func NewExampleConfig(ctx context.Context, prov config.Provider, opts ...func(*ExampleConfig)) ExampleConfig {
+	i := ExampleConfig{
+		Provider: prov,
+		handle: func(_ context.Context, err error) {
+			fmt.Printf("ExampleConfig:%v", err)
+		},
+		ctx: ctx,
+	}
+
+	for _, opt := range opts {
+		opt(&i)
+	}
+
+	return i
+}
+
+type ExampleConfig struct {
+	config.Provider
+	handle func(context.Context, error)
+	ctx    context.Context
+}
+
+// readTest test string.
+func (i ExampleConfig) readTest(ctx context.Context) (v string, e error) {
+	val, err := i.Value(ctx, "test")
+	if err != nil {
+		return v, fmt.Errorf("read [%v]:%w", []string{"test"}, err)
+
+	}
+
+	return val.ParseString()
+
+}
+
+// ReadTest test string.
+func (i ExampleConfig) ReadTest() (string, error) {
+	return i.readTest(i.ctx)
+}
+
+// Test test string.
+func (i ExampleConfig) Test() string {
+	val, err := i.readTest(i.ctx)
+	if err != nil {
+		i.handle(i.ctx, err)
+	}
+
+	return val
+}
+
+type UserConfig struct {
+	ExampleConfig
+}
+
+// User configure user.
+func (i ExampleConfig) User() UserConfig {
+	return UserConfig{i}
+}
+
+type LogConfig struct {
+	ExampleConfig
+}
+
+// Log configure logger.
+func (i ExampleConfig) Log() LogConfig {
+	return LogConfig{i}
+}
+
+// readLevel log level.
+func (i LogConfig) readLevel(ctx context.Context) (v Level, e error) {
+	val, err := i.Value(ctx, "log", "level")
+	if err != nil {
+		return v, fmt.Errorf("read [%v]:%w", []string{"log", "level"}, err)
+
+	}
+
+	pval, perr := val.ParseString()
+	if perr != nil {
+		return v, fmt.Errorf("parse [%v]:%w", []string{"log", "level"}, perr)
+	}
+
+	return v, v.UnmarshalText([]byte(pval))
+}
+
+// ReadLevel log level.
+func (i LogConfig) ReadLevel(ctx context.Context) (Level, error) {
+	return i.readLevel(ctx)
+}
+
+// Level log level.
+func (i LogConfig) Level(ctx context.Context) Level {
+	val, err := i.readLevel(ctx)
+	if err != nil {
+		i.handle(ctx, err)
+	}
+
+	return val
+}
+
+type LogServiceConfig struct {
+	LogConfig
+	service string
+}
+
+// Service servise logger.
+func (i LogConfig) Service(key string) LogServiceConfig {
+	return LogServiceConfig{i, key}
+}
+
+// readLevel log level.
+func (i LogServiceConfig) readLevel(ctx context.Context) (v Level, e error) {
+	val, err := i.Value(ctx, "log", i.service, "level")
+	if err != nil {
+		return v, fmt.Errorf("read [%v]:%w", []string{"log", i.service, "level"}, err)
+
+	}
+
+	pval, perr := val.ParseString()
+	if perr != nil {
+		return v, fmt.Errorf("parse [%v]:%w", []string{"log", i.service, "level"}, perr)
+	}
+
+	return v, v.UnmarshalText([]byte(pval))
+}
+
+// ReadLevel log level.
+func (i LogServiceConfig) ReadLevel(ctx context.Context) (Level, error) {
+	return i.readLevel(ctx)
+}
+
+// Level log level.
+func (i LogServiceConfig) Level(ctx context.Context) Level {
+	val, err := i.readLevel(ctx)
+	if err != nil {
+		i.handle(ctx, err)
+	}
+
+	return val
+}

definition/generate/example/generate_test.go

@@ -1,59 +0,0 @@
-package example_test
-
-import (
-	"context"
-	"os"
-	"testing"
-
-	"gitoa.ru/go-4devs/config/definition"
-	"gitoa.ru/go-4devs/config/definition/generate"
-	"gitoa.ru/go-4devs/config/definition/generate/bootstrap"
-	"gitoa.ru/go-4devs/config/definition/generate/example"
-)
-
-func TestGenerate_Bootstrap(t *testing.T) {
-	t.SkipNow()
-	t.Parallel()
-
-	ctx := context.Background()
-	options := definition.New()
-	_ = example.Config(ctx, options)
-
-	cfg, _ := generate.NewGConfig("./config.go",
-		generate.WithMethods("Config"),
-		generate.WithFullPkg("gitoa.ru/go-4devs/config/definition/generate/example"),
-	)
-
-	path, err := bootstrap.Bootstrap(ctx, cfg)
-	if err != nil {
-		t.Error(err)
-		t.FailNow()
-	}
-
-	os.Remove(path)
-
-	t.Log(path)
-	t.FailNow()
-}
-
-func TestGenerate_Genereate(t *testing.T) {
-	t.SkipNow()
-	t.Parallel()
-
-	ctx := context.Background()
-	options := definition.New()
-	_ = example.Config(ctx, options)
-
-	cfg, _ := generate.NewGConfig("./config.go",
-		generate.WithMethods("Config"),
-		generate.WithFullPkg("gitoa.ru/go-4devs/config/definition/generate/example"),
-	)
-
-	err := generate.Generate(ctx, cfg)
-	if err != nil {
-		t.Error(err)
-		t.FailNow()
-	}
-
-	t.FailNow()
-}

definition/generate/exec.go

@@ -11,14 +11,6 @@ import (
 	"gitoa.ru/go-4devs/config/definition/generate/bootstrap"
 )
 
-func NewGConfig(fname string, opts ...Option) (Config, error) {
-	opts = append([]Option{
-		WithFile(fname),
-	}, opts...)
-
-	return NewConfig(opts...), nil
-}
-
 type GConfig interface {
 	BuildTags() string
 	OutName() string

definition/generate/generate.go

@@ -14,137 +14,23 @@ import (
 	"gitoa.ru/go-4devs/config/definition/generate/pkg"
 	"gitoa.ru/go-4devs/config/definition/generate/render"
 	"gitoa.ru/go-4devs/config/definition/generate/view"
-	"gitoa.ru/go-4devs/config/param"
 )
 
-type Option func(*Config)
-
-func WithSkipContext(c *Config) {
-	view.WithSkipContext(c.Params)
-}
-
-func WithPrefix(name string) Option {
-	return func(c *Config) {
-		c.prefix = name
-	}
-}
-
-func WithSuffix(name string) Option {
-	return func(c *Config) {
-		c.suffix = name
-	}
-}
-
-// WithMethods set methosd.
-//
-// generate.WithMethods(runtime.FuncForPC(reflect.ValueOf(configure).Pointer()).Name()).
-func WithMethods(in ...string) Option {
-	return func(c *Config) {
-		c.methods = in
-	}
-}
-
-func WithOutName(in string) Option {
-	return func(c *Config) {
-		c.outName = in
-	}
-}
-
-func WithFile(in string) Option {
-	return func(c *Config) {
-		c.file = in
-	}
-}
-
-func WithFullPkg(in string) Option {
-	return func(c *Config) {
-		c.fullPkg = in
-	}
-}
-
-func NewConfig(opts ...Option) Config {
-	var cfg Config
-
-	cfg.Params = param.New()
-	cfg.prefix = "Input"
-
-	for _, opt := range opts {
-		opt(&cfg)
-	}
-
-	return cfg
-}
-
-type Config struct {
-	param.Params
-
-	methods   []string
-	prefix    string
-	suffix    string
-	fullPkg   string
-	pkg       string
-	file      string
-	buildTags string
-	outName   string
-}
-
-func (c Config) BuildTags() string {
-	return c.buildTags
-}
-
-func (c Config) Pkg() string {
-	if c.pkg == "" {
-		if idx := strings.LastIndex(c.fullPkg, "/"); idx != -1 {
-			c.pkg = c.fullPkg[idx+1:]
-		}
-	}
-
-	return c.pkg
-}
-
-func (c Config) FullPkg() string {
-	return c.fullPkg
-}
-
-func (c Config) SkipContext() bool {
-	return view.IsSkipContext(c.Params)
-}
-
-func (c Config) Methods() []string {
-	return c.methods
-}
-
-func (c Config) Prefix() string {
-	return c.prefix
-}
-
-func (c Config) Suffix() string {
-	return c.suffix
-}
-
-func (c Config) File() string {
-	return c.file
-}
-
-func (c Config) OutName() string {
-	return c.outName
-}
-
 //go:embed tpl/*
 var tpls embed.FS
 
 var initTpl = template.Must(template.New("tpls").ParseFS(tpls, "tpl/*.tpl")).Lookup("init.go.tpl")
 
-func Run(_ context.Context, cfg Config, w io.Writer, inputs ...Input) error {
+func Run(_ context.Context, fullPkg string, w io.Writer, defs ...config.Group) error {
 	data := Data{
-		Config: cfg,
-		imp:    pkg.NewImports(cfg.FullPkg()).Adds("fmt", "context", "gitoa.ru/go-4devs/config"),
+		Packages: pkg.NewImports(fullPkg).
+			Adds("fmt", "context", "gitoa.ru/go-4devs/config"),
 	}
 
 	var buff bytes.Buffer
 
-	for _, in := range inputs {
-		vi := view.NewViews(in.Method(), data.Params, in.Options(), view.WithKeys())
+	for _, in := range defs {
+		vi := view.NewViews(in)
 
 		if err := render.Render(&buff, vi, data); err != nil {
 			return fmt.Errorf("render:%w", err)
@@ -163,32 +49,17 @@ func Run(_ context.Context, cfg Config, w io.Writer, inputs ...Input) error {
 }
 
 type Data struct {
-	Config
-
-	imp *pkg.Imports
-}
-
-func (f Data) Imports() []pkg.Import {
-	return f.imp.Imports()
+	*pkg.Packages
 }
 
 func (f Data) StructName(name string) string {
-	return f.Prefix() + FuncName(name) + f.Suffix()
+	return FuncName(name)
 }
 
 func (f Data) FuncName(in string) string {
 	return FuncName(in)
 }
 
-func (f Data) AddType(pkg string) (string, error) {
-	short, err := f.imp.AddType(pkg)
-	if err != nil {
-		return "", fmt.Errorf("data: %w", err)
-	}
-
-	return short, nil
-}
-
 func FuncName(name string) string {
 	data := strings.Builder{}
 	toUp := true
@@ -211,23 +82,3 @@ func FuncName(name string) string {
 
 	return data.String()
 }
-
-func NewInput(method string, options config.Options) Input {
-	return Input{
-		method:  method,
-		options: options,
-	}
-}
-
-type Input struct {
-	options config.Options
-	method  string
-}
-
-func (i Input) Method() string {
-	return i.method
-}
-
-func (i Input) Options() config.Options {
-	return i.options
-}

definition/generate/generate_test.go

@@ -1,11 +1,18 @@
 package generate_test
 
 import (
+	"context"
+	"os"
+	"testing"
+
 	"gitoa.ru/go-4devs/config/definition"
+	"gitoa.ru/go-4devs/config/definition/generate"
+	"gitoa.ru/go-4devs/config/definition/generate/bootstrap"
 	"gitoa.ru/go-4devs/config/definition/generate/view"
 	"gitoa.ru/go-4devs/config/definition/group"
 	"gitoa.ru/go-4devs/config/definition/option"
 	"gitoa.ru/go-4devs/config/definition/proto"
+	"gitoa.ru/go-4devs/config/test/require"
 )
 
 type LogLevel string
@@ -17,7 +24,7 @@ func (l *LogLevel) UnmarshalText(in []byte) error {
 	return nil
 }
 
-func Configure(def *definition.Definition) {
+func Configure(_ context.Context, def *definition.Definition) error {
 	def.Add(
 		option.String("test", "test string", view.WithSkipContext),
 		group.New("user", "configure user",
@@ -30,4 +37,52 @@ func Configure(def *definition.Definition) {
 			proto.New("service", "servise logger", option.New("level", "log level", LogLevel(""))),
 		),
 	)
+
+	return nil
+}
+
+func TestGenerate_Bootstrap(t *testing.T) {
+	t.SkipNow()
+	t.Parallel()
+
+	ctx := context.Background()
+	options := definition.New()
+	err := Configure(ctx, options)
+	require.NoError(t, err)
+
+	cfg, _ := generate.NewMemoryProvider("generate_test.go",
+		generate.WithMethods("Config"),
+		generate.WithFullPkg("gitoa.ru/go-4devs/config/definition/generate_test"),
+	)
+
+	path, err := bootstrap.Bootstrap(ctx, generate.NewConfigure(ctx, cfg))
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+
+	os.Remove(path)
+
+	t.Log(path)
+	t.FailNow()
+}
+
+func TestGenerate_Genereate(t *testing.T) {
+	t.SkipNow()
+	t.Parallel()
+
+	ctx := context.Background()
+	options := definition.New()
+	err := Configure(ctx, options)
+	require.NoError(t, err)
+
+	cfg, _ := generate.NewMemoryProvider("generate_test.go",
+		generate.WithMethods("Config"),
+		generate.WithFullPkg("gitoa.ru/go-4devs/config/definition/generate_test"),
+	)
+
+	err = generate.Generate(ctx, generate.NewConfigure(ctx, cfg))
+	require.NoError(t, err)
+
+	t.FailNow()
 }

definition/generate/parser.go

@@ -0,0 +1,152 @@
+package generate
+
+import (
+	"context"
+	"fmt"
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"os"
+	"reflect"
+	"slices"
+	"strings"
+
+	"gitoa.ru/go-4devs/config"
+	"gitoa.ru/go-4devs/config/definition/generate/pkg"
+)
+
+const NameSuffix = "_config.go"
+
+func Parse(ctx context.Context, name string) (Parser, error) {
+	var parse Parser
+
+	parse.file = name
+
+	stats, err := os.Stat(name)
+	if err != nil {
+		return parse, fmt.Errorf("stats:%w", err)
+	}
+
+	parse.fullPkg, err = pkg.ByPath(ctx, name, stats.IsDir())
+	if err != nil {
+		return parse, fmt.Errorf("get pkg:%w", err)
+	}
+
+	parse.methods, err = NewParseMethods(
+		name,
+		[]reflect.Type{
+			reflect.TypeFor[context.Context](),
+			reflect.TypeFor[config.Definition](),
+		},
+		[]reflect.Type{reflect.TypeFor[error]()},
+	)
+	if err != nil {
+		return parse, fmt.Errorf("parse methods:%w", err)
+	}
+
+	return parse, nil
+}
+
+func NewParseMethods(file string, params []reflect.Type, results []reflect.Type) ([]string, error) {
+	pfile, err := parser.ParseFile(token.NewFileSet(), file, nil, parser.ParseComments)
+	if err != nil {
+		return nil, fmt.Errorf("parse:%w", err)
+	}
+
+	resultAlias := importAlias(pfile, results)
+	paramsAlias := importAlias(pfile, params)
+
+	var methods []string
+
+	ast.Inspect(pfile, func(anode ast.Node) bool {
+		if fn, ok := anode.(*ast.FuncDecl); ok &&
+			fn.Recv == nil &&
+			fn.Type != nil &&
+			(fn.Type.Params != nil && len(params) == len(fn.Type.Params.List) || len(params) == 0 && fn.Type.Params == nil) &&
+			(fn.Type.Results != nil && len(results) == len(fn.Type.Results.List) || len(results) == 0 && fn.Type.Results == nil) {
+			if hasFields(fn.Type.Params, params, paramsAlias) && hasFields(fn.Type.Results, results, resultAlias) {
+				methods = append(methods, fn.Name.String())
+			}
+		}
+
+		return true
+	})
+
+	return methods, nil
+}
+
+func importAlias(file *ast.File, params []reflect.Type) map[int][]string {
+	paramsAlias := make(map[int][]string, len(params))
+	for idx := range params {
+		name := params[idx].Name()
+		if pkgPath := params[idx].PkgPath(); pkgPath != "" {
+			name = pkg.Pkg(pkgPath)
+		}
+
+		paramsAlias[idx] = append(paramsAlias[idx], name)
+	}
+
+	ast.Inspect(file, func(anode ast.Node) bool {
+		if exp, ok := anode.(*ast.ImportSpec); ok {
+			pathName := strings.Trim(exp.Path.Value, "\"")
+			pname := pkg.Pkg(pathName)
+
+			if exp.Name != nil {
+				pname = exp.Name.String()
+			}
+
+			for idx, param := range params {
+				if pathName == param.PkgPath() {
+					paramsAlias[idx] = append(paramsAlias[idx], pname)
+				}
+			}
+		}
+
+		return true
+	})
+
+	return paramsAlias
+}
+
+func hasFields(fields *ast.FieldList, params []reflect.Type, alias map[int][]string) bool {
+	for idx, one := range fields.List {
+		iparam := params[idx]
+		if ident, iok := one.Type.(*ast.Ident); iok && iparam.String() == ident.String() {
+			return true
+		}
+
+		selector, sok := one.Type.(*ast.SelectorExpr)
+		if !sok {
+			return false
+		}
+
+		if iparam.Name() != selector.Sel.String() {
+			return false
+		}
+
+		salias, saok := selector.X.(*ast.Ident)
+		if iparam.PkgPath() != "" && saok && !slices.Contains(alias[idx], salias.String()) {
+			return false
+		}
+	}
+
+	return true
+}
+
+type Parser struct {
+	file    string
+	fullPkg string
+	methods []string
+}
+
+func (p Parser) OutName() string {
+	return strings.ReplaceAll(p.file, ".go", NameSuffix)
+}
+
+func (p Parser) FullPkg() string {
+	return p.fullPkg
+}
+
+func (p Parser) Methods() []string {
+	return p.methods
+}

definition/generate/pkg/imports.go

@@ -6,8 +6,8 @@ import (
 	"strings"
 )
 
-func NewImports(pkg string) *Imports {
-	imp := Imports{
+func NewImports(pkg string) *Packages {
+	imp := Packages{
 		data: make(map[string]string),
 		pkg:  pkg,
 	}
@@ -15,12 +15,12 @@ func NewImports(pkg string) *Imports {
 	return &imp
 }
 
-type Imports struct {
+type Packages struct {
 	data map[string]string
 	pkg  string
 }
 
-func (i *Imports) Imports() []Import {
+func (i *Packages) Imports() []Import {
 	imports := make([]Import, 0, len(i.data))
 	for name, alias := range i.data {
 		imports = append(imports, Import{
@@ -32,7 +32,7 @@ func (i *Imports) Imports() []Import {
 	return imports
 }
 
-func (i *Imports) Short(fullType string) (string, error) {
+func (i *Packages) Short(fullType string) (string, error) {
 	idx := strings.LastIndexByte(fullType, '.')
 	if idx == -1 {
 		return "", fmt.Errorf("%w: expect package.Type", ErrWrongFormat)
@@ -45,7 +45,7 @@ func (i *Imports) Short(fullType string) (string, error) {
 	return "", fmt.Errorf("%w alias for pkg %v", ErrNotFound, fullType[:idx])
 }
 
-func (i *Imports) AddType(fullType string) (string, error) {
+func (i *Packages) AddType(fullType string) (string, error) {
 	idx := strings.LastIndexByte(fullType, '.')
 	if idx == -1 {
 		return "", fmt.Errorf("%w: expect pckage.Type got %v", ErrWrongFormat, fullType)
@@ -60,7 +60,7 @@ func (i *Imports) AddType(fullType string) (string, error) {
 	return imp.Alias + fullType[idx:], nil
 }
 
-func (i *Imports) Adds(pkgs ...string) *Imports {
+func (i *Packages) Adds(pkgs ...string) *Packages {
 	for _, pkg := range pkgs {
 		i.Add(pkg)
 	}
@@ -68,7 +68,7 @@ func (i *Imports) Adds(pkgs ...string) *Imports {
 	return i
 }
 
-func (i *Imports) Add(pkg string) Import {
+func (i *Packages) Add(pkg string) Import {
 	if pkg == i.pkg {
 		return Import{
 			Alias:   "",
@@ -100,7 +100,31 @@ func (i *Imports) Add(pkg string) Import {
 	}
 }
 
+func (i *Packages) Pkg() string {
+	return Pkg(i.pkg)
+}
+
 type Import struct {
 	Alias   string
 	Package string
 }
+
+func (i Import) Pkg() string {
+	return Pkg(i.Package)
+}
+
+func (i Import) String() string {
+	if i.Alias == i.Pkg() {
+		return fmt.Sprintf("%q", i.Package)
+	}
+
+	return fmt.Sprintf("%s %q", i.Alias, i.Package)
+}
+
+func Pkg(fullPkg string) string {
+	if idx := strings.LastIndex(fullPkg, "/"); idx != -1 {
+		return fullPkg[idx+1:]
+	}
+
+	return fullPkg
+}

definition/generate/pkg/pkg.go

@@ -117,7 +117,7 @@ func getPkgPathFromGOPATH(fname string, isDir bool) (string, error) {
 		gopath = build.Default.GOPATH
 	}
 
-	for _, p := range strings.Split(gopath, string(filepath.ListSeparator)) {
+	for p := range strings.SplitSeq(gopath, string(filepath.ListSeparator)) {
 		prefix := filepath.Join(p, "src") + string(filepath.Separator)
 
 		rel, err := filepath.Rel(prefix, fname)

definition/generate/render/data.go

@@ -18,15 +18,15 @@ type ViewData struct {
 }
 
 func (d ViewData) StructName() string {
-	return d.Rendering.StructName(d.View.ParentName() + "_" + d.View.Name())
+	return d.Rendering.StructName(d.View.StructName())
 }
 
 func (d ViewData) FuncName() string {
 	return d.Rendering.FuncName(d.View.FuncName())
 }
 
-func (d ViewData) ParentName() string {
-	name := d.View.ParentName()
+func (d ViewData) ParentStruct() string {
+	name := d.View.ParentStruct()
 	if name == "" {
 		name = d.Name()
 	}
@@ -43,7 +43,7 @@ func (d ViewData) Type() string {
 }
 
 func (d ViewData) Keys(parent string) string {
-	return Keys(append(d.View.Keys(), d.Name()), parent)
+	return Keys(d.View.Keys(), parent)
 }
 
 func (d ViewData) Value(name, val string) string {

definition/generate/render/tpl/data/flag_value.go.tpl

@@ -1,8 +1,8 @@
 {{ block "FlagValue" . -}}
     pval, perr := {{.ValName}}.ParseString()
     if perr != nil {
-        return {{.Value}}, fmt.Errorf("read [%v]:%w",[]string{ {{- .Keys "i" -}} }, perr)
+        return {{.Value}}, fmt.Errorf("parse [%v]:%w",[]string{ {{- .Keys "i" -}} }, perr)
     }
 
     return {{.Value}}, {{.Value}}.Set(pval)
-{{- end }}
+{{- end -}}

definition/generate/render/tpl/data/unmarshal_json.go.tpl

@@ -1,8 +1,8 @@
 {{block "UnmarshalJSON" . -}}
     pval, perr := {{.ValName}}.ParseString()
     if perr != nil {
-	    return {{.Value}}, fmt.Errorf("read [%v]:%w", []string{ {{- .Keys "i" -}} }, perr)
+	    return {{.Value}}, fmt.Errorf("parse [%v]:%w", []string{ {{- .Keys "i" -}} }, perr)
     }
 
     return {{.Value}}, {{.Value}}.UnmarshalJSON([]byte(pval))
-{{- end }}
+{{- end -}}

definition/generate/render/tpl/data/unmarshal_text.go.tpl

@@ -1,8 +1,8 @@
 {{ block "UnmarshalText" . -}}
     pval, perr := {{.ValName}}.ParseString()
     if perr != nil {
-        return {{.Value}}, fmt.Errorf("read [%v]:%w", []string{ {{- .Keys "i" -}} }, perr)
+        return {{.Value}}, fmt.Errorf("parse [%v]:%w", []string{ {{- .Keys "i" -}} }, perr)
     }
 
     return {{.Value}}, {{.Value}}.UnmarshalText([]byte(pval))
-{{- end }}
+{{- end -}}

definition/generate/render/tpl/definition.go.tpl

@@ -1,15 +1,16 @@
-func With{{.StructName}}Log(log func(context.Context, string, ...any)) func(*{{.StructName}}) {
+func With{{.StructName}}Handle(fn func(context.Context, error)) func(*{{.StructName}}) {
 	return func(ci *{{.StructName}}) {
-		ci.log = log
+		ci.handle = fn
 	}
 }
 
-func New{{.StructName}}(prov config.Provider, opts ...func(*{{.StructName}})) {{.StructName}} {
+func New{{.StructName}}({{if or .SkipContext .ClildSkipContext }} ctx context.Context,{{end}}prov config.Provider, opts ...func(*{{.StructName}})) {{.StructName}} {
 	i := {{.StructName}}{
 		Provider: prov,
-		log: func(_ context.Context, format string, args ...any) {
-			fmt.Printf(format, args...)
+		handle: func(_ context.Context, err error) {
+			fmt.Printf("{{.StructName}}:%v",err)
 		},
+		{{if or .SkipContext .ClildSkipContext }} ctx: ctx, {{end}}
 	}
 
 	for _, opt := range opts {
@@ -21,5 +22,6 @@ func New{{.StructName}}(prov config.Provider, opts ...func(*{{.StructName}})) {{
 
 type {{.StructName}} struct {
 	config.Provider
-	log   func(context.Context, string, ...any)
+	handle   func(context.Context, error)
+	{{if or .SkipContext .ClildSkipContext}}ctx context.Context {{end}}
 }

definition/generate/render/tpl/group.go.tpl

@@ -1,8 +1,8 @@
 type {{.StructName}} struct {
-    {{.ParentName}}
+    {{.ParentStruct}}
 }
 
 // {{.FuncName}} {{.Description}}.
-func (i {{.ParentName}}) {{.FuncName}}() {{.StructName}} {
+func (i {{.ParentStruct}}) {{.FuncName}}() {{.StructName}} {
 	return {{.StructName}}{i}
 }

definition/generate/render/tpl/option/option.go.tpl

@@ -1,9 +1,9 @@
 // read{{.FuncName}} {{.Description}}.
-func (i {{.ParentName}}) read{{.FuncName}}(ctx context.Context) (v {{.Type}},e error) {
+func (i {{.ParentStruct}}) read{{.FuncName}}(ctx context.Context) (v {{.Type}},e error) {
 	val, err := i.Value(ctx, {{ .Keys "i" }})
 	if err != nil {
         {{- if .HasDefault }}
-        i.log({{ if not .SkipContext }}context.Background(){{else}}ctx{{ end }}, "read [%v]: %v",[]string{ {{- .Keys "i" -}} }, err)
+        i.handle(ctx, err)
         
         {{ .Default "val" -}}
         {{ else }}
@@ -15,15 +15,15 @@ func (i {{.ParentName}}) read{{.FuncName}}(ctx context.Context) (v {{.Type}},e e
 }
 
 // Read{{.FuncName}} {{.Description}}.
-func (i {{.ParentName}}) Read{{.FuncName}}({{if not .SkipContext}} ctx context.Context {{end}}) ({{.Type}}, error) {
-    return i.read{{.FuncName}}({{if .SkipContext}}context.Background(){{else}}ctx{{end}})
+func (i {{.ParentStruct}}) Read{{.FuncName}}({{if not .SkipContext}} ctx context.Context {{end}}) ({{.Type}}, error) {
+    return i.read{{.FuncName}}({{if .SkipContext}}i.ctx{{else}}ctx{{end}})
 }
 
 // {{.FuncName}} {{.Description}}.
-func (i {{.ParentName}}) {{.FuncName}}({{if not .SkipContext}} ctx context.Context {{end}}) {{.Type}} {
-    val, err := i.read{{.FuncName}}({{ if .SkipContext }}context.Background(){{else}}ctx{{ end }})
+func (i {{.ParentStruct}}) {{.FuncName}}({{if not .SkipContext}} ctx context.Context {{end}}) {{.Type}} {
+    val, err := i.read{{.FuncName}}({{ if .SkipContext }}i.ctx{{else}}ctx{{ end }})
 	if err != nil {
-		i.log({{ if .SkipContext }}context.Background(){{else}}ctx{{ end }}, "get [%v]: %v",[]string{ {{- .Keys "i" -}} }, err)
+		i.handle({{ if .SkipContext }}i.ctx{{else}}ctx{{ end }}, err)
 	}
 
 	return val

definition/generate/render/tpl/proto.go.tpl

@@ -1,9 +1,9 @@
 type {{.StructName}} struct {
-    {{.ParentName}}
+    {{.ParentStruct}}
     {{ .Name }} string
 }
 
 // {{.FuncName}} {{.Description}}.
-func (i {{.ParentName}}) {{.FuncName}}(key string) {{.StructName}} {
+func (i {{.ParentStruct}}) {{.FuncName}}(key string) {{.StructName}} {
 	return {{.StructName}}{i,key}
 }

definition/generate/render/value.go

@@ -111,7 +111,7 @@ func dataRender(view ViewData) DataRender {
 		return h
 	}
 
-	if vtype.Kind() != reflect.Interface && vtype.Kind() != reflect.Ptr {
+	if vtype.Kind() != reflect.Interface && vtype.Kind() != reflect.Pointer {
 		vtype = reflect.PointerTo(vtype)
 	}
 

definition/generate/render/value_test.go

@@ -32,12 +32,12 @@ func TestValue_FlagType(t *testing.T) {
 
 	const ex = `pval, perr := val.ParseString()
     if perr != nil {
-        return v, fmt.Errorf("read [%v]:%w",[]string{"flagValue"}, perr)
+        return v, fmt.Errorf("parse [%v]:%w",[]string{"flag_value"}, perr)
     }
 
     return v, v.Set(pval)`
 
-	viewData := render.NewViewData(nil, view.NewView(option.New("flag_value", "flag desc", flagValue(0)), nil))
+	viewData := render.NewViewData(nil, view.NewView(option.New("flag_value", "flag desc", flagValue(0))))
 	result := render.Value("val", "v", viewData)
 
 	if result != ex {
@@ -50,7 +50,7 @@ func TestData_Flag(t *testing.T) {
 
 	const ex = `return {{.val}}, {{.val}}.Set("42")`
 
-	viewData := render.NewViewData(nil, view.NewView(option.New("flag_value", "flag desc", flagValue(0)), nil))
+	viewData := render.NewViewData(nil, view.NewView(option.New("flag_value", "flag desc", flagValue(0))))
 	result := render.Data(flagValue(42), "val", viewData)
 
 	if result != ex {
@@ -78,7 +78,7 @@ func TestValue_Scan(t *testing.T) {
 
 	const ex = `return v, v.Scan(val.Any())`
 
-	viewData := render.NewViewData(nil, view.NewView(option.New("scan_value", "scan desc", scanValue(42)), nil))
+	viewData := render.NewViewData(nil, view.NewView(option.New("scan_value", "scan desc", scanValue(42))))
 	result := render.Value("val", "v", viewData)
 
 	if result != ex {
@@ -102,7 +102,7 @@ func TestData_UnmarshalText(t *testing.T) {
 	const ex = `return {{.val}}, {{.val}}.UnmarshalText("4devs")`
 
 	data := textData("4devs")
-	viewData := render.NewViewData(nil, view.NewView(option.New("tvalue", "unmarshal text desc", textData("")), nil))
+	viewData := render.NewViewData(nil, view.NewView(option.New("tvalue", "unmarshal text desc", textData(""))))
 	result := render.Data(data, "val", viewData)
 
 	if result != ex {
@@ -115,12 +115,12 @@ func TestValue_UnmarshalText(t *testing.T) {
 
 	const ex = `pval, perr := val.ParseString()
     if perr != nil {
-        return v, fmt.Errorf("read [%v]:%w", []string{"tvalue"}, perr)
+        return v, fmt.Errorf("parse [%v]:%w", []string{"tvalue"}, perr)
     }
 
     return v, v.UnmarshalText([]byte(pval))`
 
-	viewData := render.NewViewData(nil, view.NewView(option.New("tvalue", "unmarshal text desc", textData("")), nil))
+	viewData := render.NewViewData(nil, view.NewView(option.New("tvalue", "unmarshal text desc", textData(""))))
 	result := render.Value("val", "v", viewData)
 
 	if result != ex {

definition/generate/tpl/init.go.tpl

@@ -3,6 +3,6 @@ package {{.Pkg}}
 
 import (
     {{range .Imports}}
-    {{- .Alias }} "{{ .Package }}"
+    {{- . }}
     {{end}}
 )

definition/generate/view/view.go

@@ -3,6 +3,7 @@ package view
 import (
 	"fmt"
 	"reflect"
+	"strings"
 
 	"gitoa.ru/go-4devs/config"
 	"gitoa.ru/go-4devs/config/definition/option"
@@ -14,8 +15,29 @@ type key int
 const (
 	viewParamFunctName key = iota + 1
 	viewParamSkipContext
+	viewParamStructName
+	viewParamStructPrefix
+	viewParamStructSuffix
 )
 
+func WithStructName(name string) param.Option {
+	return func(p param.Params) param.Params {
+		return param.With(p, viewParamStructName, name)
+	}
+}
+
+func WithStructPrefix(prefix string) param.Option {
+	return func(p param.Params) param.Params {
+		return param.With(p, viewParamStructPrefix, prefix)
+	}
+}
+
+func WithStructSuffix(suffix string) param.Option {
+	return func(p param.Params) param.Params {
+		return param.With(p, viewParamStructSuffix, suffix)
+	}
+}
+
 func WithSkipContext(p param.Params) param.Params {
 	return param.With(p, viewParamSkipContext, true)
 }
@@ -38,23 +60,17 @@ func IsSkipContext(p param.Params) bool {
 
 type Option func(*View)
 
-func WithParent(name string) Option {
+func WithParent(in *View) Option {
 	return func(v *View) {
-		v.parent = name
+		v.parent = in
 	}
 }
 
-func WithKeys(keys ...string) Option {
-	return func(v *View) {
-		v.keys = keys
-	}
-}
-
-func NewViews(name string, get param.Params, option config.Options, opts ...Option) View {
-	view := newView(name, get, option, opts...)
+func NewViews(option config.Group, opts ...Option) View {
+	view := newView(option, opts...)
 
 	for _, op := range option.Options() {
-		view.children = append(view.children, NewView(op, get, WithParent(name)))
+		view.children = append(view.children, NewView(op, WithParent(&view)))
 	}
 
 	return view
@@ -62,15 +78,11 @@ func NewViews(name string, get param.Params, option config.Options, opts ...Opti
 
 type IOption any
 
-func newView(name string, get param.Params, in any, opts ...Option) View {
+func newView(option config.Option, opts ...Option) View {
 	vi := View{
-		kind:     reflect.TypeOf(in),
-		name:     name,
-		Params:   get,
-		dtype:    param.Type(get),
+		Option:   option,
+		parent:   nil,
 		children: nil,
-		keys:     nil,
-		parent:   "",
 	}
 
 	for _, opt := range opts {
@@ -80,17 +92,12 @@ func newView(name string, get param.Params, in any, opts ...Option) View {
 	return vi
 }
 
-func NewView(opt config.Option, get param.Params, opts ...Option) View {
-	vi := newView(opt.Name(), param.Chain(get, opt), opt, opts...)
+func NewView(opt config.Option, opts ...Option) View {
+	vi := newView(opt, opts...)
 
 	if data, ok := opt.(config.Group); ok {
 		for _, chi := range data.Options() {
-			vi.children = append(vi.children, NewView(
-				chi,
-				param.Chain(vi.Params, chi),
-				WithParent(vi.ParentName()+"_"+opt.Name()),
-				WithKeys(append(vi.keys, opt.Name())...),
-			))
+			vi.children = append(vi.children, NewView(chi, WithParent(&vi)))
 		}
 	}
 
@@ -98,20 +105,16 @@ func NewView(opt config.Option, get param.Params, opts ...Option) View {
 }
 
 type View struct {
-	param.Params
+	config.Option
 
 	children []View
-	keys     []string
-	kind     reflect.Type
-	name     string
-	parent   string
-	dtype    any
+	parent   *View
 }
 
 func (v View) Types() []any {
 	types := make([]any, 0)
-	if v.dtype != nil {
-		types = append(types, v.dtype)
+	if v.Type() != "" {
+		types = append(types, v.Type())
 	}
 
 	for _, child := range v.children {
@@ -122,7 +125,7 @@ func (v View) Types() []any {
 }
 
 func (v View) Kind() reflect.Type {
-	return v.kind
+	return reflect.TypeOf(v.Option)
 }
 
 func (v View) Views() []View {
@@ -130,55 +133,109 @@ func (v View) Views() []View {
 }
 
 func (v View) Param(key any) string {
-	data, ok := v.Params.Param(key)
-	if !ok {
-		return ""
+	data, has := v.Option.Param(key)
+	if has {
+		return fmt.Sprintf("%v", data)
 	}
 
-	if res, ok := data.(string); ok {
-		return res
+	if v.parent != nil {
+		return v.parent.Param(key)
 	}
 
-	return fmt.Sprintf("%v", data)
+	return ""
+}
+
+func (v View) ClildSkipContext() bool {
+	for _, child := range v.children {
+		if child.SkipContext() {
+			return true
+		}
+	}
+
+	return false
 }
 
 func (v View) SkipContext() bool {
-	return IsSkipContext(v.Params)
+	if IsSkipContext(v.Option) {
+		return true
+	}
+
+	if v.parent != nil {
+		return v.parent.SkipContext()
+	}
+
+	return false
 }
 
 func (v View) Name() string {
-	return v.name
+	return v.Option.Name()
 }
 
 func (v View) Keys() []string {
-	return v.keys
+	keys := make([]string, 0, 1)
+	if v.parent != nil {
+		keys = append(keys, v.parent.Keys()...)
+	}
+
+	if name := v.Option.Name(); name != "" {
+		keys = append(keys, name)
+	}
+
+	return keys
 }
 
 func (v View) Type() any {
-	return v.dtype
+	return param.Type(v.Option)
 }
 
 func (v View) FuncName() string {
-	data, ok := v.Params.Param(viewParamFunctName)
+	data, ok := v.Option.Param(viewParamFunctName)
 	name, valid := data.(string)
 
 	if !ok || !valid {
-		return v.name
+		return v.Name()
 	}
 
 	return name
 }
 
-func (v View) ParentName() string {
-	return v.parent
+func (v View) StructName() string {
+	name, ok := param.String(v.Option, viewParamStructName)
+	if ok {
+		return name
+	}
+
+	keys := make([]string, 0, len(v.Keys())+2) //nolint:mnd
+
+	prefix := v.Param(viewParamStructPrefix)
+	if prefix != "" {
+		keys = append(keys, prefix)
+	}
+
+	keys = append(keys, v.Keys()...)
+
+	suffix := v.Param(viewParamStructSuffix)
+	if suffix != "" {
+		keys = append(keys, suffix)
+	}
+
+	return strings.Join(keys, "_")
+}
+
+func (v View) ParentStruct() string {
+	if v.parent == nil {
+		return ""
+	}
+
+	return v.parent.StructName()
 }
 
 func (v View) Description() string {
-	return option.DataDescription(v.Params)
+	return option.DataDescription(v.Option)
 }
 
 func (v View) Default() any {
-	data, ok := option.DataDefaut(v.Params)
+	data, ok := option.DataDefaut(v.Option)
 	if !ok {
 		return nil
 	}
@@ -187,5 +244,5 @@ func (v View) Default() any {
 }
 
 func (v View) HasDefault() bool {
-	return option.HasDefaut(v.Params)
+	return option.HasDefaut(v.Option)
 }