package main

import "time"

type User struct {
	ID           uint      `gorm:"primaryKey" json:"id"`
	Username     string    `gorm:"uniqueIndex;size:64" json:"username"`
	PasswordHash string    `json:"-"`
	Role         string    `gorm:"size:20;index" json:"role"`
	Status       string    `gorm:"size:20;index" json:"status"`
	CreatedAt    time.Time `json:"createdAt"`
	UpdatedAt    time.Time `json:"updatedAt"`
}

type UserPermission struct {
	ID         uint   `gorm:"primaryKey"`
	UserID     uint   `gorm:"uniqueIndex:idx_user_permission" json:"userId"`
	Permission string `gorm:"uniqueIndex:idx_user_permission;size:64" json:"permission"`
	Enabled    bool   `json:"enabled"`
}

type CreditAccount struct {
	ID        uint      `gorm:"primaryKey"`
	UserID    uint      `gorm:"uniqueIndex" json:"userId"`
	Balance   int64     `json:"balance"`
	Reserved  int64     `json:"reserved"`
	UpdatedAt time.Time `json:"updatedAt"`
}

type CreditTransaction struct {
	ID            uint      `gorm:"primaryKey"`
	UserID        uint      `gorm:"index" json:"userId"`
	Type          string    `gorm:"index;size:32" json:"type"`
	Amount        int64     `json:"amount"`
	BalanceAfter  int64     `json:"balanceAfter"`
	ReferenceType string    `gorm:"size:32" json:"referenceType"`
	ReferenceID   string    `gorm:"size:64" json:"referenceId"`
	Reason        string    `json:"reason,omitempty"`
	CreatedAt     time.Time `json:"createdAt"`
}

type CreditReservation struct {
	ID          uint       `gorm:"primaryKey"`
	UserID      uint       `gorm:"index" json:"userId"`
	TaskID      uint       `gorm:"index" json:"taskId"`
	Amount      int64      `json:"amount"`
	Status      string     `gorm:"index;size:20" json:"status"`
	CreatedAt   time.Time  `json:"createdAt"`
	CompletedAt *time.Time `json:"completedAt,omitempty"`
}

type RedeemBatch struct {
	ID        uint       `gorm:"primaryKey"`
	Code      string     `gorm:"uniqueIndex;size:64" json:"code"`
	Credits   int64      `json:"credits"`
	Count     int        `json:"count"`
	ExpiresAt *time.Time `json:"expiresAt,omitempty"`
	Note      string     `json:"note,omitempty"`
	CreatedBy uint       `json:"createdBy"`
	CreatedAt time.Time  `json:"createdAt"`
}

type RedeemCode struct {
	ID         uint       `gorm:"primaryKey"`
	BatchID    uint       `gorm:"index" json:"batchId"`
	CodeHash   string     `gorm:"uniqueIndex;size:64" json:"-"`
	Prefix     string     `gorm:"size:24" json:"prefix"`
	Credits    int64      `json:"credits"`
	Status     string     `gorm:"index;size:20" json:"status"`
	ExpiresAt  *time.Time `json:"expiresAt,omitempty"`
	RedeemedBy *uint      `json:"redeemedBy,omitempty"`
	RedeemedAt *time.Time `json:"redeemedAt,omitempty"`
	CreatedAt  time.Time  `json:"createdAt"`
}

type RedeemRecord struct {
	ID        uint      `gorm:"primaryKey"`
	CodeID    uint      `gorm:"index" json:"codeId"`
	BatchID   uint      `gorm:"index" json:"batchId"`
	UserID    uint      `gorm:"index" json:"userId"`
	Credits   int64     `json:"credits"`
	CreatedAt time.Time `json:"createdAt"`
}

type WebDAVConfig struct {
	ID        uint      `gorm:"primaryKey"`
	UserID    uint      `gorm:"uniqueIndex" json:"userId"`
	Enabled   bool      `json:"enabled"`
	URL       string    `json:"url"`
	Username  string    `json:"username"`
	Password  string    `json:"-"`
	RootPath  string    `json:"rootPath"`
	CreatedAt time.Time `json:"createdAt"`
	UpdatedAt time.Time `json:"updatedAt"`
}

type Session struct {
	ID        uint      `gorm:"primaryKey"`
	UserID    uint      `gorm:"index" json:"userId"`
	TokenHash string    `gorm:"uniqueIndex;size:64" json:"-"`
	ExpiresAt time.Time `gorm:"index" json:"expiresAt"`
	CreatedAt time.Time `json:"createdAt"`
}

type AuditLog struct {
	ID         uint      `gorm:"primaryKey"`
	OperatorID uint      `gorm:"index" json:"operatorId"`
	Action     string    `gorm:"index;size:64" json:"action"`
	TargetType string    `gorm:"size:32" json:"targetType"`
	TargetID   string    `gorm:"size:64" json:"targetId"`
	Metadata   string    `json:"metadata,omitempty"`
	CreatedAt  time.Time `json:"createdAt"`
}

const (
	RoleAdmin        = "admin"
	RolePrivileged   = "privileged"
	RoleUser         = "user"
	UserActive       = "active"
	UserDisabled     = "disabled"
	PermDownload     = "download"
	PermRedeem       = "redeem"
	PermWebDAV       = "webdav"
	PermWebDAVConfig = "webdav_config"
)