// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.

package folio

import (
	"decl/internal/data"
	"decl/internal/codec"
	"path/filepath"
	"net/url"
)

func RegisterConverterMocks() {
	TestConverterTypes.Register([]string{"file"}, func(u *url.URL) data.Converter {
		var uri URI
		uri.SetURL(u)
		f := NewMockFileConverter(uri)
		f.Name = filepath.Join(u.Hostname(), u.Path)
		return f
	})
}


type MockFileConverter struct {
	*MockConverter `json:"-" yaml:"-"`
	Name string `json:"name" yaml:"name"`
}

func NewMockConverter(typename string, uri URI) *MockConverter {
	return &MockConverter {
		InjectType: func() data.TypeName { return data.TypeName(typename) },
		InjectEmit: func(document data.Document, filter data.ElementSelector) (res data.Resource, err error) {
			return
		},
		InjectExtract: func(res data.Resource, filter data.ElementSelector) (doc data.Document, err error) {
			doc = DocumentRegistry.NewDocument(uri)
			if r, readErr := uri.ContentReaderStream(); readErr != nil {
				return doc, readErr
			} else {
				err = doc.LoadReader(r, codec.FormatYaml)
				defer r.Close()
			}
			return
		},
		InjectClose: func() error { return nil },
	}
}

func NewMockFileConverter(uri URI) *MockFileConverter {
	f := &MockFileConverter {}
	f.MockConverter = NewMockConverter("file", uri)
	return f
}