package service

import (
	"backend-service/pkg/version"
	"bash_go_service/shared/pkg/logger"
	"context"
	"time"

	"github.com/spf13/viper"
)

// VersionCheckTask represents a task that checks for version updates.
type VersionCheckTask struct {
	interval time.Duration
}

// NewVersionCheckTask creates a new VersionCheckTask.
func NewVersionCheckTask() *VersionCheckTask {
	interval := viper.GetDuration("update_checker.interval")
	if interval < 1*time.Hour {
		interval = 1 * time.Hour // 默认值为1小时
	}
	logger.Debug("VersionCheckTask interval: %v", interval)

	return &VersionCheckTask{
		interval: interval,
	}
}

// Execute runs the version check task periodically.
func (t *VersionCheckTask) Execute(ctx context.Context) {
	ticker := time.NewTicker(t.interval)
	defer ticker.Stop()

	for {
		select {
		case <-ticker.C:
			t.CheckUpdate()
		case <-ctx.Done():
			logger.Info("VersionCheckTask stopped")
			return
		}
	}
}

// 检查更新，将文件下载到本地，在下次启动程序时执行更新
func (t *VersionCheckTask) CheckUpdate() {
	needUpdate, err := version.CheckUpdate()
	if err != nil {
		logger.Error("Check Update error: %v", err)
		return
	}
	logger.Info("Check Update result is: %v", needUpdate)
}

// Name returns the name of the task.
func (t *VersionCheckTask) Name() string {
	return "VersionCheckTask"
}