andrey
f9a0411192
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Reviewed-on: #12
43 lines
752 B
Go
43 lines
752 B
Go
package chain
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import (
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"context"
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"fmt"
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"gitoa.ru/go-4devs/config"
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)
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const Name = "chain"
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func New(c ...config.Provider) config.BindProvider {
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return chain(c)
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}
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type chain []config.Provider
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func (c chain) Value(ctx context.Context, name ...string) (config.Value, error) {
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for _, in := range c {
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if val, err := in.Value(ctx, name...); err == nil {
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return val, nil
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}
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}
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return nil, fmt.Errorf("%w", config.ErrNotFound)
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}
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func (c chain) Bind(ctx context.Context, def config.Variables) error {
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for _, input := range c {
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if prov, ok := input.(config.BindProvider); ok {
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if err := prov.Bind(ctx, def); err != nil {
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return fmt.Errorf("%T:%w", input, err)
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}
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}
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}
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return nil
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}
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func (c chain) Name() string {
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return Name
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}
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