package models

import (
	"time"

	"gorm.io/gorm"
)

// UserRoles is stored as JSON array of strings.

// Typescript: type
type UserRoles []string

// Typescript: type
type UsersShort []UserShort

type User struct {
	ID          int              `json:"id" gorm:"primaryKey"`
	Email       string           `json:"email" gorm:"uniqueIndex;size:255"`
	Name        string           `json:"name" gorm:"size:255"`
	Password    string           `json:"password" gorm:"size:255"`
	Roles       UserRoles        `json:"roles" gorm:"type:text;serializer:json"`
	Types       UserTypes        `json:"types" gorm:"type:text;serializer:json"`
	Status      UserStatus       `json:"status" gorm:"type:text;default:'pending'"`
	ActivatedAt *time.Time       `json:"activatedAt" ts:"type=Date"`
	UUID        string           `json:"uuid" gorm:"size:36"`
	Details     *UserDetails     `json:"details" gorm:"constraint:OnUpdate:CASCADE,OnDelete:SET NULL;"`
	Preferences *UserPreferences `json:"preferences" gorm:"constraint:OnUpdate:CASCADE,OnDelete:SET NULL;"`
	Avatar      *string          `json:"avatar" gorm:"size:512"`
	CreatedAt   time.Time        `json:"createdAt" ts:"type=Date"`
	UpdatedAt   time.Time        `json:"updatedAt" ts:"type=Date"`
	DeletedAt   gorm.DeletedAt   `json:"-" gorm:"index" ts:"type=Date"`
}

// UserCreateInput captures the minimal payload to create a user.

// Typescript: interface
type UserCreateInput struct {
	Name        string                `json:"name" validate:"required,min=1,max=255"`
	Email       string                `json:"email" validate:"required,email"`
	Password    string                `json:"password" validate:"required,min=8,max=128"`
	Roles       UserRoles             `json:"roles"`
	Status      UserStatus            `json:"status"`
	Types       UserTypes             `json:"types"`
	Avatar      *string               `json:"avatar"`
	Details     *UserDetailsShort     `json:"details" `
	Preferences *UserPreferencesShort `json:"preferences" `
}

// UserTypes is stored as JSON array (e.g. ["internal","external"]).
type UserTypes []string

// UserShort is a lightweight representation of User without sensitive data.

// Typescript: interface
type UserShort struct {
	Email       string                `json:"email" `
	Name        string                `json:"name" `
	Roles       UserRoles             `json:"roles" `
	Status      UserStatus            `json:"status" `
	UUID        string                `json:"uuid" `
	Details     *UserDetailsShort     `json:"details" `
	Preferences *UserPreferencesShort `json:"preferences" `
	Avatar      *string               `json:"avatar" `
}

// ToUserShort maps a User to the lightweight view.
func ToUserShort(u *User) UserShort {
	if u == nil {
		return UserShort{}
	}
	return UserShort{
		Email:       u.Email,
		Name:        u.Name,
		Roles:       u.Roles,
		Status:      u.Status,
		UUID:        u.UUID,
		Details:     ToUserDetailsShort(u.Details),
		Preferences: ToUserPreferencesShort(u.Preferences),
		Avatar:      u.Avatar,
	}
}

// ToUserDetailsShort maps UserDetails to the short version.
func ToUserDetailsShort(d *UserDetails) *UserDetailsShort {
	if d == nil {
		return nil
	}
	return &UserDetailsShort{
		Title:     d.Title,
		FirstName: d.FirstName,
		LastName:  d.LastName,
		Address:   d.Address,
		City:      d.City,
		ZipCode:   d.ZipCode,
		Country:   d.Country,
		Phone:     d.Phone,
	}
}

// ToUserPreferencesShort maps UserPreferences to the short version.
func ToUserPreferencesShort(p *UserPreferences) *UserPreferencesShort {
	if p == nil {
		return nil
	}
	return &UserPreferencesShort{
		UseIdle:          p.UseIdle,
		IdleTimeout:      p.IdleTimeout,
		UseIdlePassword:  p.UseIdlePassword,
		IdlePin:          p.IdlePin,
		UseDirectLogin:   p.UseDirectLogin,
		UseQuadcodeLogin: p.UseQuadcodeLogin,
		SendNoticesMail:  p.SendNoticesMail,
		Language:         p.Language,
	}
}

// UserPreferences holds per-user settings stored as JSON.
type UserPreferences struct {
	ID               int       `json:"id" gorm:"primaryKey"`
	UserID           int       `json:"userId" gorm:"index"`
	UseIdle          bool      `json:"useIdle"`
	IdleTimeout      int       `json:"idleTimeout"`
	UseIdlePassword  bool      `json:"useIdlePassword"`
	IdlePin          string    `json:"idlePin"`
	UseDirectLogin   bool      `json:"useDirectLogin"`
	UseQuadcodeLogin bool      `json:"useQuadcodeLogin"`
	SendNoticesMail  bool      `json:"sendNoticesMail"`
	Language         string    `json:"language"`
	CreatedAt        time.Time `json:"createdAt" ts:"type=Date"`
	UpdatedAt        time.Time `json:"updatedAt" ts:"type=Date"`
}

// UserPreferences holds per-user settings stored as JSON.

// Typescript: interface
type UserPreferencesShort struct {
	UseIdle          bool   `json:"useIdle"`
	IdleTimeout      int    `json:"idleTimeout"`
	UseIdlePassword  bool   `json:"useIdlePassword"`
	IdlePin          string `json:"idlePin"`
	UseDirectLogin   bool   `json:"useDirectLogin"`
	UseQuadcodeLogin bool   `json:"useQuadcodeLogin"`
	SendNoticesMail  bool   `json:"sendNoticesMail"`
	Language         string `json:"language"`
}

// UserDetails holds optional profile data.
type UserDetails struct {
	ID        int       `json:"id" gorm:"primaryKey"`
	UserID    int       `json:"userId" gorm:"index"`
	Title     string    `json:"title"`
	FirstName string    `json:"firstName"`
	LastName  string    `json:"lastName"`
	Address   string    `json:"address"`
	City      string    `json:"city"`
	ZipCode   string    `json:"zipCode"`
	Country   string    `json:"country"`
	Phone     string    `json:"phone"`
	CreatedAt time.Time `json:"createdAt" ts:"type=Date"`
	UpdatedAt time.Time `json:"updatedAt" ts:"type=Date"`
}

// UserDetails holds optional profile data.

// Typescript: interface
type UserDetailsShort struct {
	Title     string `json:"title"`
	FirstName string `json:"firstName"`
	LastName  string `json:"lastName"`
	Address   string `json:"address"`
	City      string `json:"city"`
	ZipCode   string `json:"zipCode"`
	Country   string `json:"country"`
	Phone     string `json:"phone"`
}

// Session tracks logins with browser metadata.

type Session struct {
	ID               int            `json:"id" gorm:"primaryKey"`
	UserID           *int           `json:"userId" gorm:"index"`
	Username         string         `json:"username" gorm:"size:255"`
	AccessTokenHash  string         `json:"-" gorm:"size:128;index"`
	RefreshTokenHash string         `json:"-" gorm:"size:128;index"`
	ExpiresAt        time.Time      `json:"expiresAt" ts:"type=Date" gorm:"index"`
	IPAddress        string         `json:"ipAddress" gorm:"size:64"`
	UserAgent        string         `json:"userAgent" gorm:"size:512"`
	CreatedAt        time.Time      `json:"createdAt" ts:"type=Date"`
	UpdatedAt        time.Time      `json:"updatedAt" ts:"type=Date"`
	DeletedAt        gorm.DeletedAt `json:"-" gorm:"index" `
}

type PasswordResetToken struct {
	ID        int            `json:"id" gorm:"primaryKey"`
	UserID    int            `json:"userId" gorm:"index"`
	TokenHash string         `json:"-" gorm:"size:64;uniqueIndex"`
	ExpiresAt time.Time      `json:"expiresAt" ts:"type=Date" gorm:"index"`
	UsedAt    *time.Time     `json:"usedAt" ts:"type=Date"`
	CreatedAt time.Time      `json:"createdAt" ts:"type=Date"`
	UpdatedAt time.Time      `json:"updatedAt" ts:"type=Date"`
	DeletedAt gorm.DeletedAt `json:"-" gorm:"index"`
}

// UserStatus represents lifecycle state of a user.
type UserStatus string

// Typescript: enum=UserStatus
const (
	UserStatusPending  UserStatus = "pending"
	UserStatusActive   UserStatus = "active"
	UserStatusDisabled UserStatus = "disabled"
)