package model

import (
	"gorm.io/gorm"
	"time"
)

// User 用户表
type User struct {
	ID        uint64         `gorm:"primarykey" json:"id"`
	Username  string         `gorm:"type:varchar(50);uniqueIndex;not null" json:"username"`
	Password  string         `gorm:"type:varchar(100);not null" json:"-"`
	Email     string         `gorm:"type:varchar(100);index" json:"email"`
	Phone     string         `gorm:"type:varchar(20);index" json:"phone"`
	RealName  string         `gorm:"type:varchar(50)" json:"real_name"`
	IDCard    string         `gorm:"type:varchar(20)" json:"id_card"`
	Role      string         `gorm:"type:varchar(20);default:'user'" json:"role"` // admin, user
	Status    int            `gorm:"type:tinyint;default:1;index" json:"status"`   // 1:正常，0:禁用
	CreatedAt time.Time      `json:"created_at"`
	UpdatedAt time.Time      `json:"updated_at"`
	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
}

// Exam 考试表
type Exam struct {
	ID            uint64         `gorm:"primarykey" json:"id"`
	Title         string         `gorm:"type:varchar(200);not null" json:"title"`
	Code          string         `gorm:"type:varchar(50);uniqueIndex;not null" json:"code"`
	Description   string         `gorm:"type:text" json:"description"`
	StartTime     time.Time      `json:"start_time"`
	EndTime       time.Time      `json:"end_time"`
	RegistrationStart time.Time  `json:"registration_start"`
	RegistrationEnd   time.Time  `json:"registration_end"`
	MaxCandidates int            `gorm:"default:0" json:"max_candidates"` // 0 表示不限制
	ExamFee       float64        `gorm:"type:decimal(10,2);default:0" json:"exam_fee"`
	ExamLocation  string         `gorm:"type:varchar(200)" json:"exam_location"`
	Subject       string         `gorm:"type:varchar(100)" json:"subject"`
	Status        int            `gorm:"type:tinyint;default:1;index" json:"status"` // 1:未开始，2:进行中，3:已结束
	CreatorID     uint64         `gorm:"index" json:"creator_id"`
	CreatedAt     time.Time      `json:"created_at"`
	UpdatedAt     time.Time      `json:"updated_at"`
	DeletedAt     gorm.DeletedAt `gorm:"index" json:"-"`
}

// ExamRegistration 报名表
type ExamRegistration struct {
	ID             uint64         `gorm:"primarykey" json:"id"`
	UserID         uint64         `gorm:"index;not null" json:"user_id"`
	ExamID         uint64         `gorm:"index;not null" json:"exam_id"`
	Status         int            `gorm:"type:tinyint;default:0;index" json:"status"` // 0:待审核，1:已通过，2:已拒绝，3:已取消
	PaymentStatus  int            `gorm:"type:tinyint;default:0;index" json:"payment_status"` // 0:未支付，1:已支付
	PaymentTime    *time.Time     `json:"payment_time"`
	AuditTime      *time.Time     `json:"audit_time"`
	AuditComment   string         `gorm:"type:varchar(500)" json:"audit_comment"`
	TicketNumber   string         `gorm:"type:varchar(50);uniqueIndex" json:"ticket_number"` // 准考证号
	ExamSeat       string         `gorm:"type:varchar(20)" json:"exam_seat"` // 考场座位
	Remark         string         `gorm:"type:varchar(500)" json:"remark"`
	CreatedAt      time.Time      `json:"created_at"`
	UpdatedAt      time.Time      `json:"updated_at"`
	DeletedAt      gorm.DeletedAt `gorm:"index" json:"-"`
	
	User           User           `gorm:"foreignKey:UserID;constraint:OnDelete:CASCADE" json:"user,omitempty"`
	Exam           Exam           `gorm:"foreignKey:ExamID;constraint:OnDelete:CASCADE" json:"exam,omitempty"`
}

// ExamNotice 考试通知
type ExamNotice struct {
	ID          uint64         `gorm:"primarykey" json:"id"`
	ExamID      uint64         `gorm:"index;not null" json:"exam_id"`
	Title       string         `gorm:"type:varchar(200);not null" json:"title"`
	Content     string         `gorm:"type:text;not null" json:"content"`
	Type        int            `gorm:"type:tinyint;default:1" json:"type"` // 1:普通通知，2:重要通知，3:紧急通知
	PublishTime time.Time      `json:"publish_time"`
	PublisherID uint64         `gorm:"index" json:"publisher_id"`
	CreatedAt   time.Time      `json:"created_at"`
	UpdatedAt   time.Time      `json:"updated_at"`
	DeletedAt   gorm.DeletedAt `gorm:"index" json:"-"`
	
	Exam        Exam           `gorm:"foreignKey:ExamID;constraint:OnDelete:CASCADE" json:"exam,omitempty"`
}

// ExamScore 考试成绩
type ExamScore struct {
	ID          uint64         `gorm:"primarykey" json:"id"`
	UserID      uint64         `gorm:"index;not null" json:"user_id"`
	ExamID      uint64         `gorm:"index;not null" json:"exam_id"`
	Score       float64        `gorm:"type:decimal(5,2)" json:"score"`
	TotalScore  float64        `gorm:"type:decimal(5,2)" json:"total_score"`
	Pass        bool           `gorm:"default:false" json:"pass"`
	Rank        int            `gorm:"default:0" json:"rank"`
	Remark      string         `gorm:"type:varchar(500)" json:"remark"`
	Published   bool           `gorm:"default:false;index" json:"published"` // 是否已发布
	CreatedAt   time.Time      `json:"created_at"`
	UpdatedAt   time.Time      `json:"updated_at"`
	DeletedAt   gorm.DeletedAt `gorm:"index" json:"-"`
	
	User        User           `gorm:"foreignKey:UserID;constraint:OnDelete:CASCADE" json:"user,omitempty"`
	Exam        Exam           `gorm:"foreignKey:ExamID;constraint:OnDelete:CASCADE" json:"exam,omitempty"`
}

func (User) TableName() string {
	return "user"
}

func (Exam) TableName() string {
	return "exam"
}

func (ExamRegistration) TableName() string {
	return "exam_registration"
}

func (ExamNotice) TableName() string {
	return "exam_notice"
}

func (ExamScore) TableName() string {
	return "exam_score"
}