package rewriter

import (
	"forge.cadoles.com/cadoles/bouncer/internal/store"
	"github.com/mitchellh/mapstructure"
	"github.com/pkg/errors"
)

type LayerOptions struct {
	MatchURLs []string `mapstructure:"matchURLs"`
	Rules     Rules    `mapstructure:"rules"`
}

type Rules struct {
	Request  []string `mapstructure:"request"`
	Response []string `mapstructure:"response"`
}

func DefaultLayerOptions() LayerOptions {
	return LayerOptions{
		MatchURLs: []string{"*"},
		Rules: Rules{
			Request:  []string{},
			Response: []string{},
		},
	}

}

func fromStoreOptions(storeOptions store.LayerOptions) (*LayerOptions, error) {
	layerOptions := DefaultLayerOptions()

	if err := FromStoreOptions(storeOptions, &layerOptions); err != nil {
		return nil, errors.WithStack(err)
	}

	return &layerOptions, nil
}

func FromStoreOptions(storeOptions store.LayerOptions, dest any) error {
	config := mapstructure.DecoderConfig{
		Result:     dest,
		ZeroFields: true,
	}

	decoder, err := mapstructure.NewDecoder(&config)
	if err != nil {
		return errors.WithStack(err)
	}

	if err := decoder.Decode(storeOptions); err != nil {
		return errors.WithStack(err)
	}

	return nil
}