package commands

import (
	"fmt"
	"time"
)

// CreateAnnouncementCommand 创建公告命令
type CreateAnnouncementCommand struct {
	Title   string `json:"title" binding:"required" comment:"公告标题"`
	Content string `json:"content" binding:"required" comment:"公告内容"`
}

// UpdateAnnouncementCommand 更新公告命令
type UpdateAnnouncementCommand struct {
	ID      string `json:"-" uri:"id" binding:"required" comment:"公告ID"`
	Title   string `json:"title" comment:"公告标题"`
	Content string `json:"content" comment:"公告内容"`
}

// DeleteAnnouncementCommand 删除公告命令
type DeleteAnnouncementCommand struct {
	ID string `json:"-" uri:"id" binding:"required" comment:"公告ID"`
}

// PublishAnnouncementCommand 发布公告命令
type PublishAnnouncementCommand struct {
	ID string `json:"-" uri:"id" binding:"required" comment:"公告ID"`
}

// WithdrawAnnouncementCommand 撤回公告命令
type WithdrawAnnouncementCommand struct {
	ID string `json:"-" uri:"id" binding:"required" comment:"公告ID"`
}

// ArchiveAnnouncementCommand 归档公告命令
type ArchiveAnnouncementCommand struct {
	ID string `json:"-" uri:"id" binding:"required" comment:"公告ID"`
}

// SchedulePublishAnnouncementCommand 定时发布公告命令
type SchedulePublishAnnouncementCommand struct {
	ID            string `json:"-" uri:"id" binding:"required" comment:"公告ID"`
	ScheduledTime string `json:"scheduled_time" binding:"required" comment:"定时发布时间"`
}

// GetScheduledTime 获取解析后的定时发布时间
func (cmd *SchedulePublishAnnouncementCommand) GetScheduledTime() (time.Time, error) {
	// 定义中国东八区时区
	cst := time.FixedZone("CST", 8*3600)

	// 支持多种时间格式
	formats := []string{
		"2006-01-02 15:04:05",  // "2025-09-02 14:12:01"
		"2006-01-02T15:04:05",  // "2025-09-02T14:12:01"
		"2006-01-02T15:04:05Z", // "2025-09-02T14:12:01Z"
		"2006-01-02 15:04",     // "2025-09-02 14:12"
		time.RFC3339,           // "2025-09-02T14:12:01+08:00"
	}

	for _, format := range formats {
		if t, err := time.ParseInLocation(format, cmd.ScheduledTime, cst); err == nil {
			// 确保返回的时间是东八区时区
			return t.In(cst), nil
		}
	}

	return time.Time{}, fmt.Errorf("不支持的时间格式: %s，请使用 YYYY-MM-DD HH:mm:ss 格式", cmd.ScheduledTime)
}

// UpdateSchedulePublishAnnouncementCommand 更新定时发布公告命令
type UpdateSchedulePublishAnnouncementCommand struct {
	ID            string `json:"-" uri:"id" binding:"required" comment:"公告ID"`
	ScheduledTime string `json:"scheduled_time" binding:"required" comment:"定时发布时间"`
}

// GetScheduledTime 获取解析后的定时发布时间
func (cmd *UpdateSchedulePublishAnnouncementCommand) GetScheduledTime() (time.Time, error) {
	// 定义中国东八区时区
	cst := time.FixedZone("CST", 8*3600)

	// 支持多种时间格式
	formats := []string{
		"2006-01-02 15:04:05",  // "2025-09-02 14:12:01"
		"2006-01-02T15:04:05",  // "2025-09-02T14:12:01"
		"2006-01-02T15:04:05Z", // "2025-09-02T14:12:01Z"
		"2006-01-02 15:04",     // "2025-09-02 14:12"
		time.RFC3339,           // "2025-09-02T14:12:01+08:00"
	}

	for _, format := range formats {
		if t, err := time.ParseInLocation(format, cmd.ScheduledTime, cst); err == nil {
			// 确保返回的时间是东八区时区
			return t.In(cst), nil
		}
	}

	return time.Time{}, fmt.Errorf("不支持的时间格式: %s，请使用 YYYY-MM-DD HH:mm:ss 格式", cmd.ScheduledTime)
}

// CancelSchedulePublishAnnouncementCommand 取消定时发布公告命令
type CancelSchedulePublishAnnouncementCommand struct {
	ID string `json:"-" uri:"id" binding:"required" comment:"公告ID"`
}