package models

import (
	"encoding/json"
	"time"

	"gorm.io/gorm"
)

// JSONB 已定义在 collection_asset.go（复用）

// ========== 1. 举报分类字典 ==========

type ReportCategory struct {
	ID          int64   `gorm:"primaryKey;autoIncrement;column:id"`
	Code        string  `gorm:"type:varchar(50);not null;uniqueIndex;column:code"`
	Name        string  `gorm:"type:varchar(50);not null;column:name"`
	Description *string `gorm:"type:varchar(200);column:description"`
	Severity    int16   `gorm:"not null;default:1;column:severity"`
	Enabled     bool    `gorm:"not null;default:true;column:enabled"`
	SortOrder   int32   `gorm:"not null;default:0;column:sort_order"`
	CreatedAt   int64   `gorm:"not null;column:created_at"`
	UpdatedAt   int64   `gorm:"not null;column:updated_at"`
}

func (ReportCategory) TableName() string { return "report_categories" }

func (c *ReportCategory) BeforeCreate(tx *gorm.DB) error {
	now := unixMilliNow()
	if c.CreatedAt == 0 {
		c.CreatedAt = now
	}
	c.UpdatedAt = now
	return nil
}

func (c *ReportCategory) BeforeUpdate(tx *gorm.DB) error {
	c.UpdatedAt = unixMilliNow()
	return nil
}

// ========== 2. 反馈分类字典 ==========

type FeedbackCategory struct {
	ID          int64   `gorm:"primaryKey;autoIncrement;column:id"`
	Code        string  `gorm:"type:varchar(50);not null;uniqueIndex;column:code"`
	Name        string  `gorm:"type:varchar(50);not null;column:name"`
	Description *string `gorm:"type:varchar(200);column:description"`
	Enabled     bool    `gorm:"not null;default:true;column:enabled"`
	SortOrder   int32   `gorm:"not null;default:0;column:sort_order"`
	CreatedAt   int64   `gorm:"not null;column:created_at"`
	UpdatedAt   int64   `gorm:"not null;column:updated_at"`
}

func (FeedbackCategory) TableName() string { return "feedback_categories" }

func (c *FeedbackCategory) BeforeCreate(tx *gorm.DB) error {
	now := unixMilliNow()
	if c.CreatedAt == 0 {
		c.CreatedAt = now
	}
	c.UpdatedAt = now
	return nil
}

func (c *FeedbackCategory) BeforeUpdate(tx *gorm.DB) error {
	c.UpdatedAt = unixMilliNow()
	return nil
}

// ========== 3. 举报工单主表 ==========

type Report struct {
	ID                int64   `gorm:"primaryKey;autoIncrement;column:id"`
	ReporterID        int64   `gorm:"not null;column:reporter_id"`
	StarID            *int64  `gorm:"column:star_id"`
	TargetType        string  `gorm:"type:varchar(30);not null;column:target_type"`
	TargetID          int64   `gorm:"not null;column:target_id"`
	TargetSnapshot    JSONB   `gorm:"type:jsonb;not null;column:target_snapshot"`
	TriggeredAutoHide bool    `gorm:"not null;default:false;column:triggered_auto_hide"`
	CategoryCode      string  `gorm:"type:varchar(50);not null;column:category_code"`
	Description       *string `gorm:"type:varchar(500);column:description"`
	IsAnonymous       bool    `gorm:"not null;default:false;column:is_anonymous"`
	Status            string  `gorm:"type:varchar(20);not null;default:'pending';column:status"`
	IsAutoHidden      bool    `gorm:"not null;default:false;column:is_auto_hidden"`
	ClaimedBy         *int64  `gorm:"column:claimed_by"`
	ClaimedAt         *int64  `gorm:"column:claimed_at"`
	ResolvedAction    *string `gorm:"type:varchar(20);column:resolved_action"`
	ResolvedBy        *int64  `gorm:"column:resolved_by"`
	ResolvedAt        *int64  `gorm:"column:resolved_at"`
	ResolutionNote    *string `gorm:"type:varchar(500);column:resolution_note"`
	CreatedAt         int64   `gorm:"not null;column:created_at"`
	UpdatedAt         int64   `gorm:"not null;column:updated_at"`
}

func (Report) TableName() string { return "reports" }

func (r *Report) BeforeCreate(tx *gorm.DB) error {
	now := unixMilliNow()
	if r.CreatedAt == 0 {
		r.CreatedAt = now
	}
	r.UpdatedAt = now
	return nil
}

func (r *Report) BeforeUpdate(tx *gorm.DB) error {
	r.UpdatedAt = unixMilliNow()
	return nil
}

// ========== 4. 举报证据图 ==========

type ReportEvidence struct {
	ID        int64  `gorm:"primaryKey;autoIncrement;column:id"`
	ReportID  int64  `gorm:"not null;column:report_id"`
	OSSKey    string `gorm:"type:varchar(255);not null;column:oss_key"`
	OSSURL    *string `gorm:"type:varchar(500);column:oss_url"`
	SortOrder int32  `gorm:"not null;default:0;column:sort_order"`
	CreatedAt int64  `gorm:"not null;column:created_at"`
}

func (ReportEvidence) TableName() string { return "report_evidence" }

func (e *ReportEvidence) BeforeCreate(tx *gorm.DB) error {
	if e.CreatedAt == 0 {
		e.CreatedAt = unixMilliNow()
	}
	return nil
}

// ========== 5. 反馈工单 ==========

type Feedback struct {
	ID           int64   `gorm:"primaryKey;autoIncrement;column:id"`
	UserID       int64   `gorm:"not null;column:user_id"`
	StarID       *int64  `gorm:"column:star_id"`
	CategoryCode string  `gorm:"type:varchar(50);not null;column:category_code"`
	Title        string  `gorm:"type:varchar(100);not null;column:title"`
	Content      string  `gorm:"type:text;not null;column:content"`
	Contact      *string `gorm:"type:varchar(320);column:contact"`
	IsAnonymous  bool    `gorm:"not null;default:false;column:is_anonymous"`
	Status       string  `gorm:"type:varchar(20);not null;default:'pending';column:status"`
	ClaimedBy    *int64  `gorm:"column:claimed_by"`
	ClaimedAt    *int64  `gorm:"column:claimed_at"`
	RepliedBy    *int64  `gorm:"column:replied_by"`
	RepliedAt    *int64  `gorm:"column:replied_at"`
	ReplyContent *string `gorm:"type:text;column:reply_content"`
	ClosedBy     *int64  `gorm:"column:closed_by"`
	ClosedAt     *int64  `gorm:"column:closed_at"`
	ArchivedBy   *int64  `gorm:"column:archived_by"`
	ArchivedAt   *int64  `gorm:"column:archived_at"`
	CreatedAt    int64   `gorm:"not null;column:created_at"`
	UpdatedAt    int64   `gorm:"not null;column:updated_at"`
}

func (Feedback) TableName() string { return "feedbacks" }

func (f *Feedback) BeforeCreate(tx *gorm.DB) error {
	now := unixMilliNow()
	if f.CreatedAt == 0 {
		f.CreatedAt = now
	}
	f.UpdatedAt = now
	return nil
}

func (f *Feedback) BeforeUpdate(tx *gorm.DB) error {
	f.UpdatedAt = unixMilliNow()
	return nil
}

// ========== 6. 反馈截图 ==========

type FeedbackEvidence struct {
	ID        int64  `gorm:"primaryKey;autoIncrement;column:id"`
	FeedbackID int64 `gorm:"not null;column:feedback_id"`
	OSSKey    string `gorm:"type:varchar(255);not null;column:oss_key"`
	OSSURL    *string `gorm:"type:varchar(500);column:oss_url"`
	SortOrder int32  `gorm:"not null;default:0;column:sort_order"`
	CreatedAt int64  `gorm:"not null;column:created_at"`
}

func (FeedbackEvidence) TableName() string { return "feedback_evidence" }

func (e *FeedbackEvidence) BeforeCreate(tx *gorm.DB) error {
	if e.CreatedAt == 0 {
		e.CreatedAt = unixMilliNow()
	}
	return nil
}

// ========== 7. 审核动作流水 ==========

type ModerationAction struct {
	ID           int64   `gorm:"primaryKey;autoIncrement;column:id"`
	ReportID     *int64  `gorm:"column:report_id"`
	FeedbackID   *int64  `gorm:"column:feedback_id"`
	AdminID      int64   `gorm:"not null;column:admin_id"`
	ActionType   string  `gorm:"type:varchar(30);not null;column:action_type"`
	TargetType   *string `gorm:"type:varchar(30);column:target_type"`
	TargetID     *int64  `gorm:"column:target_id"`
	Note         *string `gorm:"type:varchar(500);column:note"`
	Success      bool    `gorm:"not null;column:success"`
	ErrorMessage *string `gorm:"type:varchar(500);column:error_message"`
	CreatedAt    int64   `gorm:"not null;column:created_at"`
}

func (ModerationAction) TableName() string { return "moderation_actions" }

func (a *ModerationAction) BeforeCreate(tx *gorm.DB) error {
	if a.CreatedAt == 0 {
		a.CreatedAt = unixMilliNow()
	}
	return nil
}

// ========== 8. 对象受管控状态 ==========

type ModerationTargetStatus struct {
	ID              int64   `gorm:"primaryKey;autoIncrement;column:id"`
	TargetType      string  `gorm:"type:varchar(30);not null;column:target_type"`
	TargetID        int64   `gorm:"not null;column:target_id"`
	IsWarned        bool    `gorm:"not null;default:false;column:is_warned"`
	WarnCount       int32   `gorm:"not null;default:0;column:warn_count"`
	LastWarnedAt    *int64  `gorm:"column:last_warned_at"`
	LastActionType  string  `gorm:"type:varchar(30);not null;column:last_action_type"`
	Reason          *string `gorm:"type:varchar(200);column:reason"`
	Source          string  `gorm:"type:varchar(30);not null;column:source"`
	SourceReportID  *int64  `gorm:"column:source_report_id"`
	OperatorAdminID *int64  `gorm:"column:operator_admin_id"`
	CreatedAt       int64   `gorm:"not null;column:created_at"`
	UpdatedAt       int64   `gorm:"not null;column:updated_at"`
}

func (ModerationTargetStatus) TableName() string { return "moderation_target_status" }

func (m *ModerationTargetStatus) BeforeCreate(tx *gorm.DB) error {
	now := unixMilliNow()
	if m.CreatedAt == 0 {
		m.CreatedAt = now
	}
	m.UpdatedAt = now
	return nil
}

func (m *ModerationTargetStatus) BeforeUpdate(tx *gorm.DB) error {
	m.UpdatedAt = unixMilliNow()
	return nil
}

// ========== 9. 管理员操作日志 ==========

type AdminAuditLog struct {
	ID           int64   `gorm:"primaryKey;autoIncrement;column:id"`
	AdminID      int64   `gorm:"not null;column:admin_id"`
	Action       string  `gorm:"type:varchar(50);not null;column:action"`
	ResourceType *string `gorm:"type:varchar(30);column:resource_type"`
	ResourceID   *int64  `gorm:"column:resource_id"`
	IP           *string `gorm:"type:varchar(500);column:ip"`
	UserAgent    *string `gorm:"type:varchar(500);column:user_agent"`
	Extra        JSONB   `gorm:"type:jsonb;column:extra"`
	CreatedAt    int64   `gorm:"not null;column:created_at"`
}

func (AdminAuditLog) TableName() string { return "admin_audit_logs" }

func (l *AdminAuditLog) BeforeCreate(tx *gorm.DB) error {
	if l.CreatedAt == 0 {
		l.CreatedAt = unixMilliNow()
	}
	return nil
}

// unixMilliNow returns current Unix millisecond timestamp
func unixMilliNow() int64 {
	return time.Now().UnixMilli()
}

// ToJSONB marshals any value to JSONB bytes
func ToJSONB(v interface{}) (JSONB, error) {
	return JSONB(mustMarshal(v)), nil
}

func mustMarshal(v interface{}) []byte {
	b, err := json.Marshal(v)
	if err != nil {
		return []byte("null")
	}
	return b
}