//go:build !test

package photos

/*
#cgo CFLAGS: -I${SRCDIR}/../../bridge
#cgo LDFLAGS: -L${SRCDIR}/../../bridge -lphotokit_bridge -framework Photos -framework Foundation -framework AppKit
#include "photokit_bridge.h"
#include <stdlib.h>
*/
import "C"

import "unsafe"

type CgoBridge struct{}

var DefaultBridge Bridge = &CgoBridge{}

func (*CgoBridge) RequestAccess() error {
	rc := C.photos_request_access()
	if rc != 0 {
		return errAccessDenied
	}
	return nil
}

func (*CgoBridge) ListAlbums() ([]Album, error) {
	cs := C.photos_list_albums_json()
	if cs == nil {
		return nil, errBridgeNil
	}
	defer C.photos_free_string(cs)
	return ParseAlbumsJSON(C.GoString(cs))
}

func (*CgoBridge) ListAssets(albumID string) ([]Asset, int, error) {
	cid := C.CString(albumID)
	defer C.free(unsafe.Pointer(cid))

	cs := C.photos_list_assets_json(cid)
	if cs == nil {
		return nil, 0, errBridgeNil
	}
	defer C.photos_free_string(cs)
	return ParseAssetsJSON(C.GoString(cs))
}

func (*CgoBridge) ListTree() ([]CollectionNode, error) {
	cs := C.photos_list_tree_json()
	if cs == nil {
		return nil, errBridgeNil
	}
	defer C.photos_free_string(cs)
	return ParseTreeJSON(C.GoString(cs))
}

func (*CgoBridge) Cancel() {
	C.photos_request_cancel()
}

func (*CgoBridge) ExportPreview(assetID, outputDir string, targetSize, index int) (ExportResult, error) {
	cid := C.CString(assetID)
	defer C.free(unsafe.Pointer(cid))
	cdir := C.CString(outputDir)
	defer C.free(unsafe.Pointer(cdir))

	cs := C.photos_export_preview_json(cid, cdir, C.int(targetSize), C.int(index))
	if cs == nil {
		return ExportResult{}, errBridgeNil
	}
	defer C.photos_free_string(cs)
	return ParseExportResultJSON(C.GoString(cs))
}

func (*CgoBridge) ExportOriginal(assetID, outputDir string, index int) (ExportResult, error) {
	cid := C.CString(assetID)
	defer C.free(unsafe.Pointer(cid))
	cdir := C.CString(outputDir)
	defer C.free(unsafe.Pointer(cdir))

	cs := C.photos_export_original_json(cid, cdir, C.int(index))
	if cs == nil {
		return ExportResult{}, errBridgeNil
	}
	defer C.photos_free_string(cs)
	return ParseExportResultJSON(C.GoString(cs))
}