package service

import (
	"encoding/json"
	"gorm.io/gorm"
	"os"
	"path/filepath"
	"work_cation/cfg"
	"work_cation/global"
	"work_cation/models"
	"work_cation/repo"
)

type erlangCardService struct{}

var ErlangCard = &erlangCardService{}

func (*erlangCardService) Create(erlangCard *models.ErlangCards) error {
	if len(erlangCard.VarName) == 0 {
		erlangCard.ToolType = models.ToolTypeNoVarErlang
	}
	os.RemoveAll(filepath.Join(cfg.T.CardDir, erlangCard.UUID))

	err := os.Mkdir(filepath.Join(cfg.T.CardDir, erlangCard.UUID), os.ModeDir)
	if err != nil {
		return err
	}
	info, err := os.Create(filepath.Join(cfg.T.CardDir, erlangCard.UUID, cfg.T.CardInfo))
	if err != nil {
		return err
	}
	defer info.Close()
	jsonB, err := json.Marshal(erlangCard)
	if err != nil {
		return err
	}
	_, err = info.Write(jsonB)
	if err != nil {
		return err
	}
	return global.DB.Transaction(func(tx *gorm.DB) error {
		var baseCard = erlangCard.BaseCard

		err = repo.BaseCard.CreateOrSave(global.DB, &baseCard)
		return err
	})
}

func (*erlangCardService) GetInfoPath(erlangCard *models.ErlangCards) string {
	return filepath.Join(cfg.T.CardDir, erlangCard.UUID, cfg.T.CardInfo)
}

func (*erlangCardService) GetImageDir(erlangCard *models.ErlangCards) []string {
	var coverPaths []string
	for _, cover := range erlangCard.Covers {
		coverPaths = append(coverPaths, filepath.Join(cfg.T.CardDir, erlangCard.UUID, cover))
	}
	return coverPaths
}