package responses

import (
	"time"
	"tyapi-server/internal/domains/article/entities"
)

// AnnouncementInfoResponse 公告详情响应
type AnnouncementInfoResponse struct {
	ID          string     `json:"id" comment:"公告ID"`
	Title       string     `json:"title" comment:"公告标题"`
	Content     string     `json:"content" comment:"公告内容"`
	Status      string     `json:"status" comment:"公告状态"`
	ScheduledAt *time.Time `json:"scheduled_at" comment:"定时发布时间"`
	CreatedAt   time.Time  `json:"created_at" comment:"创建时间"`
	UpdatedAt   time.Time  `json:"updated_at" comment:"更新时间"`
}

// AnnouncementListItemResponse 公告列表项响应
type AnnouncementListItemResponse struct {
	ID          string     `json:"id" comment:"公告ID"`
	Title       string     `json:"title" comment:"公告标题"`
	Content     string     `json:"content" comment:"公告内容"`
	Status      string     `json:"status" comment:"公告状态"`
	ScheduledAt *time.Time `json:"scheduled_at" comment:"定时发布时间"`
	CreatedAt   time.Time  `json:"created_at" comment:"创建时间"`
	UpdatedAt   time.Time  `json:"updated_at" comment:"更新时间"`
}

// AnnouncementListResponse 公告列表响应
type AnnouncementListResponse struct {
	Total int64                          `json:"total" comment:"总数"`
	Page  int                            `json:"page" comment:"页码"`
	Size  int                            `json:"size" comment:"每页数量"`
	Items []AnnouncementListItemResponse `json:"items" comment:"公告列表"`
}

// AnnouncementStatsResponse 公告统计响应
type AnnouncementStatsResponse struct {
	TotalAnnouncements     int64 `json:"total_announcements" comment:"公告总数"`
	PublishedAnnouncements int64 `json:"published_announcements" comment:"已发布公告数"`
	DraftAnnouncements     int64 `json:"draft_announcements" comment:"草稿公告数"`
	ArchivedAnnouncements  int64 `json:"archived_announcements" comment:"归档公告数"`
	ScheduledAnnouncements int64 `json:"scheduled_announcements" comment:"定时发布公告数"`
}

// FromAnnouncementEntity 从公告实体转换为响应对象
func FromAnnouncementEntity(announcement *entities.Announcement) *AnnouncementInfoResponse {
	if announcement == nil {
		return nil
	}

	return &AnnouncementInfoResponse{
		ID:          announcement.ID,
		Title:       announcement.Title,
		Content:     announcement.Content,
		Status:      string(announcement.Status),
		ScheduledAt: announcement.ScheduledAt,
		CreatedAt:   announcement.CreatedAt,
		UpdatedAt:   announcement.UpdatedAt,
	}
}

// FromAnnouncementEntityList 从公告实体列表转换为列表项响应
func FromAnnouncementEntityList(announcements []*entities.Announcement) []AnnouncementListItemResponse {
	items := make([]AnnouncementListItemResponse, 0, len(announcements))
	for _, announcement := range announcements {
		items = append(items, AnnouncementListItemResponse{
			ID:          announcement.ID,
			Title:       announcement.Title,
			Content:     announcement.Content,
			Status:      string(announcement.Status),
			ScheduledAt: announcement.ScheduledAt,
			CreatedAt:   announcement.CreatedAt,
			UpdatedAt:   announcement.UpdatedAt,
		})
	}
	return items
}