package models

import (
	"time"

	"github.com/uptrace/bun"
)

// ─── Roles ──────────────────────────────────────────────────
type Role string

const (
	RoleAdmin     Role = "admin"
	RoleModerator Role = "moderator"
	RoleUser      Role = "user"
)

// ─── User ───────────────────────────────────────────────────
type User struct {
	bun.BaseModel `bun:"table:users,alias:u"`

	ID        int64     `bun:"id,pk,autoincrement" json:"id"`
	Email     string    `bun:"email,notnull,unique" json:"email"`
	Username  string    `bun:"username,notnull,unique" json:"username"`
	Password  string    `bun:"password,notnull" json:"-"`
	Role      Role      `bun:"role,notnull,default:'user'" json:"role"`
	IsActive  bool      `bun:"is_active,notnull,default:true" json:"is_active"`
	CreatedAt time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt time.Time `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`

	UserGames []*UserGame `bun:"rel:has-many,join:id=user_id" json:"user_games,omitempty"`
}

// ─── Game ───────────────────────────────────────────────────
type Game struct {
	bun.BaseModel `bun:"table:games,alias:g"`

	ID          int64     `bun:"id,pk,autoincrement" json:"id"`
	Name        string    `bun:"name,notnull,unique" json:"name"`
	Slug        string    `bun:"slug,notnull,unique" json:"slug"`
	Description string    `bun:"description" json:"description"`
	ImageURL    string    `bun:"image_url" json:"image_url"`
	IsActive    bool      `bun:"is_active,notnull,default:true" json:"is_active"`
	CreatedAt   time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt   time.Time `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`

	Variables     []*GameVariable `bun:"rel:has-many,join:id=game_id" json:"variables,omitempty"`
	Notifications []Notification  `bun:"rel:has-many,join:id=game_id" json:"notifications,omitempty"`
	Leaderboards  []Leaderboard   `bun:"rel:has-many,join:id=game_id" json:"leaderboards,omitempty"`
	Modules       []Module        `bun:"-" json:"modules,omitempty"`
}

type GameVariableType string

const (
	GameVariableTypeNumber GameVariableType = "number"
	GameVariableTypeString GameVariableType = "string"
	GameVariableTypeTable  GameVariableType = "table"
	GameVariableTypeVector GameVariableType = "vector"
)

type GameVariableTableValueType string

const (
	GameVariableTableValueTypeNumber GameVariableTableValueType = "number"
	GameVariableTableValueTypeString GameVariableTableValueType = "string"
)

type GameVariable struct {
	bun.BaseModel `bun:"table:game_variables,alias:gv"`

	ID             int64                       `bun:"id,pk,autoincrement" json:"id"`
	GameID         int64                       `bun:"game_id,notnull" json:"game_id"`
	Key            string                      `bun:"key,notnull" json:"key"`
	Type           GameVariableType            `bun:"type,notnull" json:"type"`
	NumberValue    *float64                    `bun:"number_value" json:"number_value,omitempty"`
	StringValue    *string                     `bun:"string_value" json:"string_value,omitempty"`
	TableValueType *GameVariableTableValueType `bun:"table_value_type" json:"table_value_type,omitempty"`
	CreatedAt      time.Time                   `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt      time.Time                   `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`

	Game  *Game               `bun:"rel:belongs-to,join:game_id=id" json:"game,omitempty"`
	Items []*GameVariableItem `bun:"rel:has-many,join:id=game_variable_id" json:"items,omitempty"`
}

type GameVariableItem struct {
	bun.BaseModel `bun:"table:game_variable_items,alias:gvi"`

	ID             int64     `bun:"id,pk,autoincrement" json:"id"`
	GameVariableID int64     `bun:"game_variable_id,notnull" json:"game_variable_id"`
	Key            string    `bun:"item_key,notnull" json:"key,omitempty"`
	Index          *int64    `bun:"-" json:"index,omitempty"`
	NumberValue    *float64  `bun:"number_value" json:"number_value,omitempty"`
	StringValue    *string   `bun:"string_value" json:"string_value,omitempty"`
	CreatedAt      time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt      time.Time `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`

	Variable *GameVariable `bun:"rel:belongs-to,join:game_variable_id=id" json:"-"`
}

type Module struct {
	bun.BaseModel `bun:"table:modules,alias:m"`

	ID        int64     `bun:"id,pk,autoincrement" json:"id"`
	Key       string    `bun:"key,notnull,unique" json:"key"`
	Name      string    `bun:"name,notnull" json:"name"`
	CreatedAt time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt time.Time `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`
}

type Language struct {
	bun.BaseModel `bun:"table:languages,alias:l"`

	ID        int64     `bun:"id,pk,autoincrement" json:"id"`
	Code      string    `bun:"code,notnull,unique" json:"code"`
	Name      string    `bun:"name,notnull" json:"name"`
	CreatedAt time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt time.Time `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`
}

type GameModule struct {
	bun.BaseModel `bun:"table:game_modules,alias:gm"`

	ID        int64     `bun:"id,pk,autoincrement" json:"id"`
	GameID    int64     `bun:"game_id,notnull" json:"game_id"`
	ModuleID  int64     `bun:"module_id,notnull" json:"module_id"`
	CreatedAt time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`

	Game   *Game   `bun:"rel:belongs-to,join:game_id=id" json:"-"`
	Module *Module `bun:"rel:belongs-to,join:module_id=id" json:"module,omitempty"`
}

type Notification struct {
	bun.BaseModel `bun:"table:notifications,alias:n"`

	ID           int64                     `bun:"id,pk,autoincrement" json:"id"`
	GameID       int64                     `bun:"game_id,notnull" json:"game_id"`
	Name         string                    `bun:"name,notnull" json:"name"`
	CreatedAt    time.Time                 `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt    time.Time                 `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`
	Game         *Game                     `bun:"rel:belongs-to,join:game_id=id" json:"game,omitempty"`
	Descriptions []NotificationDescription `bun:"rel:has-many,join:id=notification_id" json:"descriptions,omitempty"`
	Variables    []NotificationVariableDef `bun:"rel:has-many,join:id=notification_id" json:"variables,omitempty"`
	Entries      []NotificationEntry       `bun:"rel:has-many,join:id=notification_id" json:"entries,omitempty"`
	Macros       []string                  `bun:"-" json:"macros,omitempty"`
}

type NotificationDescription struct {
	bun.BaseModel `bun:"table:notification_descriptions,alias:nd"`

	ID             int64         `bun:"id,pk,autoincrement" json:"id"`
	NotificationID int64         `bun:"notification_id,notnull" json:"notification_id"`
	LanguageID     int64         `bun:"language_id,notnull" json:"language_id"`
	Description    string        `bun:"description,notnull" json:"description"`
	CreatedAt      time.Time     `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt      time.Time     `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`
	Language       *Language     `bun:"rel:belongs-to,join:language_id=id" json:"language,omitempty"`
	Notification   *Notification `bun:"rel:belongs-to,join:notification_id=id" json:"-"`
}

type NotificationVariableDef struct {
	bun.BaseModel `bun:"table:notification_variable_defs,alias:nvd"`

	ID             int64         `bun:"id,pk,autoincrement" json:"id"`
	NotificationID int64         `bun:"notification_id,notnull" json:"notification_id"`
	Key            string        `bun:"key,notnull" json:"key"`
	CreatedAt      time.Time     `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt      time.Time     `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`
	Notification   *Notification `bun:"rel:belongs-to,join:notification_id=id" json:"-"`
}

type NotificationEntry struct {
	bun.BaseModel `bun:"table:notification_entries,alias:ne"`

	ID             int64                       `bun:"id,pk,autoincrement" json:"id"`
	NotificationID int64                       `bun:"notification_id,notnull" json:"notification_id"`
	TimeSecond     int64                       `bun:"time_second,notnull" json:"time_second"`
	Image          string                      `bun:"image,notnull" json:"image"`
	Login          string                      `bun:"login,notnull" json:"login"`
	CreatedAt      time.Time                   `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt      time.Time                   `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`
	Notification   *Notification               `bun:"rel:belongs-to,join:notification_id=id" json:"-"`
	Variables      []NotificationEntryVariable `bun:"rel:has-many,join:id=notification_entry_id" json:"variables,omitempty"`
}

type NotificationEntryVariable struct {
	bun.BaseModel `bun:"table:notification_entry_variables,alias:nev"`

	ID                     int64                    `bun:"id,pk,autoincrement" json:"id"`
	NotificationEntryID    int64                    `bun:"notification_entry_id,notnull" json:"notification_entry_id"`
	NotificationVariableID int64                    `bun:"notification_variable_id,notnull" json:"notification_variable_id"`
	Value                  string                   `bun:"value,notnull" json:"value"`
	CreatedAt              time.Time                `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt              time.Time                `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`
	Key                    string                   `bun:"-" json:"key,omitempty"`
	Entry                  *NotificationEntry       `bun:"rel:belongs-to,join:notification_entry_id=id" json:"-"`
	Variable               *NotificationVariableDef `bun:"rel:belongs-to,join:notification_variable_id=id" json:"-"`
}

type LeaderboardSortOrder string

const (
	LeaderboardSortOrderDesc LeaderboardSortOrder = "desc"
	LeaderboardSortOrderAsc  LeaderboardSortOrder = "asc"
)

type LeaderboardPeriodType string

const (
	LeaderboardPeriodAllTime LeaderboardPeriodType = "all_time"
	LeaderboardPeriodDaily   LeaderboardPeriodType = "daily"
	LeaderboardPeriodWeekly  LeaderboardPeriodType = "weekly"
	LeaderboardPeriodMonthly LeaderboardPeriodType = "monthly"
)

type Leaderboard struct {
	bun.BaseModel `bun:"table:leaderboards,alias:lb"`

	ID         int64                 `bun:"id,pk,autoincrement" json:"id"`
	GameID     int64                 `bun:"game_id,notnull" json:"game_id"`
	Key        string                `bun:"key,notnull" json:"key"`
	Name       string                `bun:"name,notnull" json:"name"`
	SortOrder  LeaderboardSortOrder  `bun:"sort_order,notnull" json:"sort_order"`
	PeriodType LeaderboardPeriodType `bun:"period_type,notnull" json:"period_type"`
	IsActive   bool                  `bun:"is_active,notnull,default:true" json:"is_active"`
	CreatedAt  time.Time             `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt  time.Time             `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`

	Game   *Game              `bun:"rel:belongs-to,join:game_id=id" json:"game,omitempty"`
	Groups []LeaderboardGroup `bun:"rel:has-many,join:id=leaderboard_id" json:"groups,omitempty"`
}

type LeaderboardGroup struct {
	bun.BaseModel `bun:"table:leaderboard_groups,alias:lbg"`

	ID            int64     `bun:"id,pk,autoincrement" json:"id"`
	LeaderboardID int64     `bun:"leaderboard_id,notnull" json:"leaderboard_id"`
	Key           string    `bun:"key,notnull" json:"key"`
	Name          string    `bun:"name,notnull" json:"name"`
	IsDefault     bool      `bun:"is_default,notnull,default:false" json:"is_default"`
	CreatedAt     time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt     time.Time `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`

	Leaderboard *Leaderboard             `bun:"rel:belongs-to,join:leaderboard_id=id" json:"leaderboard,omitempty"`
	Members     []LeaderboardGroupMember `bun:"rel:has-many,join:id=group_id" json:"members,omitempty"`
}

type LeaderboardGroupMember struct {
	bun.BaseModel `bun:"table:leaderboard_group_members,alias:lbgm"`

	ID        int64     `bun:"id,pk,autoincrement" json:"id"`
	GroupID   int64     `bun:"group_id,notnull" json:"group_id"`
	UserID    int64     `bun:"user_id,notnull" json:"user_id"`
	CreatedAt time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`

	Group *LeaderboardGroup `bun:"rel:belongs-to,join:group_id=id" json:"-"`
	User  *User             `bun:"rel:belongs-to,join:user_id=id" json:"user,omitempty"`
}

type LeaderboardScore struct {
	bun.BaseModel `bun:"table:leaderboard_scores,alias:lbs"`

	ID            int64     `bun:"id,pk,autoincrement" json:"id"`
	LeaderboardID int64     `bun:"leaderboard_id,notnull" json:"leaderboard_id"`
	UserGameID    int64     `bun:"user_game_id,notnull" json:"user_game_id"`
	Score         float64   `bun:"score,notnull" json:"score"`
	CreatedAt     time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt     time.Time `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`

	Leaderboard *Leaderboard `bun:"rel:belongs-to,join:leaderboard_id=id" json:"leaderboard,omitempty"`
	UserGame    *UserGame    `bun:"rel:belongs-to,join:user_game_id=id" json:"user_game,omitempty"`
}

type LeaderboardRankItem struct {
	Rank       int64   `json:"rank"`
	UserID     int64   `json:"user_id"`
	UserGameID int64   `json:"user_game_id"`
	Username   string  `json:"username"`
	Score      float64 `json:"score"`
}

// ─── UserGame (pivot — user's connected games + balance) ────
type UserGame struct {
	bun.BaseModel `bun:"table:user_games,alias:ug"`

	ID        int64     `bun:"id,pk,autoincrement" json:"id"`
	UserID    int64     `bun:"user_id,notnull" json:"user_id"`
	GameID    int64     `bun:"game_id,notnull" json:"game_id"`
	Balance   float64   `bun:"balance,notnull,default:0" json:"balance"`
	CreatedAt time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
	UpdatedAt time.Time `bun:"updated_at,nullzero,notnull,default:current_timestamp" json:"updated_at"`

	User *User `bun:"rel:belongs-to,join:user_id=id" json:"user,omitempty"`
	Game *Game `bun:"rel:belongs-to,join:game_id=id" json:"game,omitempty"`
}

// ─── Invite Link ────────────────────────────────────────────
type InviteLink struct {
	bun.BaseModel `bun:"table:invite_links,alias:il"`

	ID          int64      `bun:"id,pk,autoincrement" json:"id"`
	Code        string     `bun:"code,notnull,unique" json:"code"`
	Role        Role       `bun:"role,notnull,default:'user'" json:"role"`
	MaxUses     int        `bun:"max_uses,notnull,default:1" json:"max_uses"`
	UsedCount   int        `bun:"used_count,notnull,default:0" json:"used_count"`
	CreatedByID int64      `bun:"created_by_id,notnull" json:"created_by_id"`
	ExpiresAt   *time.Time `bun:"expires_at" json:"expires_at"`
	CreatedAt   time.Time  `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`

	CreatedBy *User `bun:"rel:belongs-to,join:created_by_id=id" json:"created_by,omitempty"`
}

// ─── Balance Transaction Log ────────────────────────────────
type BalanceTransaction struct {
	bun.BaseModel `bun:"table:balance_transactions,alias:bt"`

	ID         int64     `bun:"id,pk,autoincrement" json:"id"`
	UserGameID int64     `bun:"user_game_id,notnull" json:"user_game_id"`
	Amount     float64   `bun:"amount,notnull" json:"amount"`
	Type       string    `bun:"type,notnull" json:"type"` // "topup" | "withdraw"
	Comment    string    `bun:"comment" json:"comment"`
	AdminID    int64     `bun:"admin_id,notnull" json:"admin_id"`
	CreatedAt  time.Time `bun:"created_at,nullzero,notnull,default:current_timestamp" json:"created_at"`
}

// ─── Request / Response DTOs ────────────────────────────────
type LoginRequest struct {
	Email    string `json:"email" binding:"required,email"`
	Password string `json:"password" binding:"required,min=6"`
}

type RegisterRequest struct {
	Email      string `json:"email" binding:"required,email"`
	Username   string `json:"username" binding:"required,min=3"`
	Password   string `json:"password" binding:"required,min=6"`
	InviteCode string `json:"invite_code"`
}

type TopUpRequest struct {
	Amount  float64 `json:"amount" binding:"required,gt=0"`
	Comment string  `json:"comment"`
}

type CreateInviteRequest struct {
	Role    Role `json:"role" binding:"required"`
	MaxUses int  `json:"max_uses" binding:"required,gt=0"`
}

type CreateGameRequest struct {
	Name        string `json:"name" binding:"required"`
	Slug        string `json:"slug" binding:"required"`
	Description string `json:"description"`
	ImageURL    string `json:"image_url"`
}

type GameVariableItemRequest struct {
	Key         string   `json:"key"`
	Index       *int64   `json:"index"`
	NumberValue *float64 `json:"number_value"`
	StringValue *string  `json:"string_value"`
}

type UpsertGameVariableRequest struct {
	Key            string                      `json:"key" binding:"required"`
	Type           GameVariableType            `json:"type" binding:"required"`
	NumberValue    *float64                    `json:"number_value"`
	StringValue    *string                     `json:"string_value"`
	TableValueType *GameVariableTableValueType `json:"table_value_type"`
	Items          []GameVariableItemRequest   `json:"items"`
}

type ConnectGameModuleRequest struct {
	ModuleKey string `json:"module_key" binding:"required"`
}

type UpsertLanguageRequest struct {
	Code string `json:"code" binding:"required"`
	Name string `json:"name" binding:"required"`
}

type NotificationDescriptionRequest struct {
	LanguageID  int64  `json:"language_id" binding:"required"`
	Description string `json:"description" binding:"required"`
}

type NotificationVariableRequest struct {
	Key string `json:"key" binding:"required"`
}

type NotificationEntryVariableRequest struct {
	Key   string `json:"key" binding:"required"`
	Value string `json:"value"`
}

type NotificationEntryRequest struct {
	TimeSecond int64                              `json:"time_second"`
	Image      string                             `json:"image" binding:"required"`
	Login      string                             `json:"login" binding:"required"`
	Variables  []NotificationEntryVariableRequest `json:"variables"`
}

type UpsertNotificationRequest struct {
	Name         string                           `json:"name" binding:"required"`
	Descriptions []NotificationDescriptionRequest `json:"descriptions" binding:"required"`
	Variables    []NotificationVariableRequest    `json:"variables"`
	Entries      []NotificationEntryRequest       `json:"entries" binding:"required"`
}

type UpsertLeaderboardRequest struct {
	Key        string                `json:"key" binding:"required"`
	Name       string                `json:"name" binding:"required"`
	SortOrder  LeaderboardSortOrder  `json:"sort_order" binding:"required"`
	PeriodType LeaderboardPeriodType `json:"period_type" binding:"required"`
	IsActive   *bool                 `json:"is_active"`
}

type UpsertLeaderboardGroupRequest struct {
	Key       string `json:"key" binding:"required"`
	Name      string `json:"name" binding:"required"`
	IsDefault *bool  `json:"is_default"`
}

type AddLeaderboardGroupMemberRequest struct {
	UserID int64 `json:"user_id" binding:"required"`
}

type UpsertLeaderboardScoreRequest struct {
	UserGameID int64   `json:"user_game_id" binding:"required"`
	Score      float64 `json:"score" binding:"required"`
}

type ConnectGameRequest struct {
	GameID int64 `json:"game_id" binding:"required"`
}

type UpdateUserRoleRequest struct {
	Role Role `json:"role" binding:"required"`
}