package model

import (
	"time"

	"spark-server/internal/module/square/entity"
)

// Post maps table square_posts.
type Post struct {
	ID           int64      `gorm:"column:id;primaryKey;autoIncrement:false;comment:Snowflake 帖 id"`
	UserID       int64      `gorm:"column:user_id;comment:作者 users.id"`
	Channel      string     `gorm:"column:channel;comment:广场实例"`
	Category     string     `gorm:"column:category;comment:内容标签"`
	Kind         int16      `gorm:"column:kind;comment:1纯文 2图 3视频"`
	Text         string     `gorm:"column:text;comment:正文"`
	Content      []byte     `gorm:"column:content;type:varbinary(16384);comment:序列化 JSON 字节"`
	POILat       float64    `gorm:"column:poi_lat;comment:地点纬度"`
	POILng       float64    `gorm:"column:poi_lng;comment:地点经度"`
	POIName      string     `gorm:"column:poi_name;comment:地点名称"`
	POIAddress   string     `gorm:"column:poi_address;comment:地点地址"`
	Visibility   int16      `gorm:"column:visibility;comment:0公开 1私密 2白名单 3黑名单"`
	AuditStatus  int16      `gorm:"column:audit_status;comment:0待审 1通过 2拒绝"`
	AuditNote    string     `gorm:"column:audit_note;comment:拒绝原因"`
	AuditedAt    *time.Time `gorm:"column:audited_at;comment:审核时间"`
	Status       int16      `gorm:"column:status;comment:0正常 1已删"`
	Source       int16      `gorm:"column:source;comment:0用户 1机器人海外媒体RSS"`
	SourceURL    string     `gorm:"column:source_url;comment:原文 URL"`
	ExpiresAt    *time.Time `gorm:"column:expires_at;comment:机器人帖过期时间"`
	LikeCount    int        `gorm:"column:like_count;comment:点赞数"`
	CommentCount int        `gorm:"column:comment_count;comment:评论数"`
	CreatedAt    time.Time  `gorm:"column:created_at;comment:发帖时间"`
}

func (Post) TableName() string { return "t_square_posts" }

func (r *Post) Entity() *entity.Post {
	if r == nil {
		return nil
	}
	ch := entity.Channel(r.Channel)
	if ch == "" {
		ch = entity.ChannelSquare
	}
	p := &entity.Post{
		ID: r.ID, UserID: r.UserID, Channel: ch, Category: entity.Category(r.Category),
		Kind: entity.Kind(r.Kind), Text: r.Text, Content: r.Content,
		POI:        entity.POI{Lat: r.POILat, Lng: r.POILng, Name: r.POIName, Address: r.POIAddress},
		Visibility: entity.Visibility(r.Visibility), AuditStatus: entity.AuditStatus(r.AuditStatus),
		Status: entity.Status(r.Status), Source: entity.Source(r.Source), SourceURL: r.SourceURL,
		LikeCount: r.LikeCount, CommentCount: r.CommentCount, CreatedAtMS: r.CreatedAt.UnixMilli(),
	}
	if r.ExpiresAt != nil {
		p.ExpiresAtMS = r.ExpiresAt.UnixMilli()
	}
	return p
}

func postFrom(p *entity.Post) *Post {
	if p == nil {
		return nil
	}
	ch := string(p.Channel)
	if ch == "" {
		ch = string(entity.ChannelSquare)
	}
	row := &Post{
		ID: p.ID, UserID: p.UserID, Channel: ch, Category: string(p.Category),
		Kind: int16(p.Kind), Text: p.Text, Content: p.Content,
		POILat: p.POI.Lat, POILng: p.POI.Lng, POIName: p.POI.Name, POIAddress: p.POI.Address,
		Visibility: int16(p.Visibility), AuditStatus: int16(p.AuditStatus), Status: int16(p.Status),
		Source: int16(p.Source), SourceURL: p.SourceURL, LikeCount: p.LikeCount, CommentCount: p.CommentCount,
	}
	if p.CreatedAtMS > 0 {
		row.CreatedAt = time.UnixMilli(p.CreatedAtMS)
	}
	if p.ExpiresAtMS > 0 {
		t := time.UnixMilli(p.ExpiresAtMS)
		row.ExpiresAt = &t
	}
	if p.AuditStatus == entity.AuditApproved {
		t := row.CreatedAt
		if t.IsZero() {
			t = time.Now()
		}
		row.AuditedAt = &t
	}
	return row
}

// BotLink maps t_square_bot_links (RSS URL 去重).
type BotLink struct {
	URLHash   string    `gorm:"column:url_hash;primaryKey;comment:URL SHA-256 hex"`
	URL       string    `gorm:"column:url;comment:原文 URL"`
	PostID    int64     `gorm:"column:post_id;comment:帖 id"`
	CreatedAt time.Time `gorm:"column:created_at;comment:入库时间"`
}

func (BotLink) TableName() string { return "t_square_bot_links" }

// Audience maps square_audience.
type Audience struct {
	PostID int64 `gorm:"column:post_id;primaryKey;comment:帖 id"`
	PeerID int64 `gorm:"column:peer_id;primaryKey;comment:好友 uid"`
}

func (Audience) TableName() string { return "t_square_audience" }

// Like maps square_likes.
type Like struct {
	PostID    int64     `gorm:"column:post_id;primaryKey;comment:帖 id"`
	UserID    int64     `gorm:"column:user_id;primaryKey;comment:点赞人"`
	CreatedAt time.Time `gorm:"column:created_at;comment:点赞时间"`
}

func (Like) TableName() string { return "t_square_likes" }

func (r *Like) Entity() *entity.Like {
	if r == nil {
		return nil
	}
	return &entity.Like{PostID: r.PostID, UserID: r.UserID, CreatedAtMS: r.CreatedAt.UnixMilli()}
}

// Comment maps square_comments.
type Comment struct {
	ID         int64     `gorm:"column:id;primaryKey;autoIncrement:false;comment:Snowflake 评论 id"`
	PostID     int64     `gorm:"column:post_id;comment:帖 id"`
	UserID     int64     `gorm:"column:user_id;comment:评论人"`
	ReplyToID  int64     `gorm:"column:reply_to_id;comment:父评论 id"`
	ReplyToUID int64     `gorm:"column:reply_to_uid;comment:被回复用户"`
	Text       string    `gorm:"column:text;comment:评论文本"`
	Status     int16     `gorm:"column:status;comment:0正常 1已删"`
	CreatedAt  time.Time `gorm:"column:created_at;comment:评论时间"`
}

func (Comment) TableName() string { return "t_square_comments" }

func (r *Comment) Entity() *entity.Comment {
	if r == nil {
		return nil
	}
	return &entity.Comment{
		ID: r.ID, PostID: r.PostID, UserID: r.UserID, ReplyToID: r.ReplyToID, ReplyToUID: r.ReplyToUID,
		Text: r.Text, Status: entity.Status(r.Status), CreatedAtMS: r.CreatedAt.UnixMilli(),
	}
}

func commentFrom(c *entity.Comment) *Comment {
	if c == nil {
		return nil
	}
	row := &Comment{
		ID: c.ID, PostID: c.PostID, UserID: c.UserID, ReplyToID: c.ReplyToID, ReplyToUID: c.ReplyToUID,
		Text: c.Text, Status: int16(c.Status),
	}
	if c.CreatedAtMS > 0 {
		row.CreatedAt = time.UnixMilli(c.CreatedAtMS)
	}
	return row
}

// Notice maps square_notices.
type Notice struct {
	ID         int64      `gorm:"column:id;primaryKey;autoIncrement:false;comment:Snowflake 通知 id"`
	ToUserID   int64      `gorm:"column:to_user_id;comment:接收人"`
	Channel    string     `gorm:"column:channel;comment:广场实例"`
	FromUserID int64      `gorm:"column:from_user_id;comment:发起人"`
	Kind       int16      `gorm:"column:kind;comment:1赞 2评论 3回复"`
	PostID     int64      `gorm:"column:post_id;comment:帖 id"`
	CommentID  int64      `gorm:"column:comment_id;comment:评论 id"`
	ReadAt     *time.Time `gorm:"column:read_at;comment:已读时间"`
	CreatedAt  time.Time  `gorm:"column:created_at;comment:通知时间"`
}

func (Notice) TableName() string { return "t_square_notices" }

func (r *Notice) Entity() *entity.Notice {
	if r == nil {
		return nil
	}
	ch := entity.Channel(r.Channel)
	if ch == "" {
		ch = entity.ChannelSquare
	}
	n := &entity.Notice{
		ID: r.ID, ToUserID: r.ToUserID, Channel: ch, FromUserID: r.FromUserID, Kind: entity.NoticeKind(r.Kind),
		PostID: r.PostID, CommentID: r.CommentID, CreatedAtMS: r.CreatedAt.UnixMilli(),
	}
	if r.ReadAt != nil {
		n.ReadAtMS = r.ReadAt.UnixMilli()
	}
	return n
}

// NoticeState maps square_notice_state.
type NoticeState struct {
	UserID           int64     `gorm:"column:user_id;primaryKey;comment:用户 id"`
	Channel          string    `gorm:"column:channel;primaryKey;comment:广场实例"`
	LastReadNoticeID int64     `gorm:"column:last_read_notice_id;comment:已读水位"`
	UpdatedAt        time.Time `gorm:"column:updated_at;comment:更新时间"`
}

func (NoticeState) TableName() string { return "t_square_notice_state" }

func (r *NoticeState) Entity() *entity.NoticeState {
	if r == nil {
		return nil
	}
	ch := entity.Channel(r.Channel)
	if ch == "" {
		ch = entity.ChannelSquare
	}
	return &entity.NoticeState{
		UserID: r.UserID, Channel: ch, LastReadNoticeID: r.LastReadNoticeID, UpdatedAtMS: r.UpdatedAt.UnixMilli(),
	}
}