package fortune

import (
	"errors"
	io "io"
	"os"
	"sync"

	"github.com/RomiChan/protobuf/proto"

	"github.com/FloatTech/ZeroBot-Plugin/utils/file"
)

var (
	conf Conf
	mu   sync.Mutex
)

func loadcfg(name string) error {
	name = base + name
	if file.IsExist(name) {
		f, err := os.Open(name)
		if err == nil {
			defer f.Close()
			data, err1 := io.ReadAll(f)
			if err1 == nil {
				if len(data) > 0 {
					return proto.Unmarshal(data, &conf)
				}
			}
			return err1
		}
	} else { // 如果没有 cfg，则使用空 map
		conf.Kind = make(map[int64]uint32)
	}
	return nil
}

func savecfg(name string) error {
	name = base + name
	data, err := proto.Marshal(&conf)
	if err == nil {
		if file.IsExist(base) {
			f, err1 := os.OpenFile(name, os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0644)
			if err1 == nil {
				mu.Lock()
				_, err2 := f.Write(data)
				f.Close()
				mu.Unlock()
				return err2
			}
			return err1
		}
		return errors.New("base dir is not exist")
	}
	return err
}