package models

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

type NewsCategory string

const (
    NewsCategoryEvents      NewsCategory = "events"
    NewsCategoryTraining    NewsCategory = "training"
    NewsCategoryAchievements NewsCategory = "achievements"
    NewsCategoryCommunity   NewsCategory = "community"
)

type News struct {
    ID        uint         `json:"id" gorm:"primarykey"`
    CreatedAt time.Time    `json:"created_at"`
    UpdatedAt time.Time    `json:"updated_at"`
    DeletedAt gorm.DeletedAt `json:"deleted_at,omitempty" gorm:"index"`
    
    Title     string       `json:"title" gorm:"size:255;not null"`
    Excerpt   string       `json:"excerpt" gorm:"size:500;not null"`
    Content   string       `json:"content" gorm:"type:text;not null"`
    Image     string       `json:"image" gorm:"size:255"`
    Category  NewsCategory `json:"category" gorm:"type:varchar(20);not null"`
    Views     int          `json:"views" gorm:"default:0"`
    
    // Связи
    AuthorID  uint         `json:"author_id" gorm:"not null"`
    Author    User         `json:"author" gorm:"foreignKey:AuthorID"`
    
    Comments  []Comment    `json:"comments,omitempty" gorm:"foreignKey:NewsID"`
}

type Comment struct {
    ID        uint         `json:"id" gorm:"primarykey"`
    CreatedAt time.Time    `json:"created_at"`
    UpdatedAt time.Time    `json:"updated_at"`
    
    Content   string       `json:"content" gorm:"type:text;not null"`
    
    // Связи
    NewsID    uint         `json:"news_id" gorm:"not null"`
    AuthorID  uint         `json:"author_id" gorm:"not null"`
    Author    User         `json:"author" gorm:"foreignKey:AuthorID"`
}

// DTO для создания новости
type CreateNewsRequest struct {
    Title    string       `json:"title" validate:"required,min=5,max=255"`
    Excerpt  string       `json:"excerpt" validate:"required,min=10,max=500"`
    Content  string       `json:"content" validate:"required,min=50"`
    Image    string       `json:"image"`
    Category NewsCategory `json:"category" validate:"required,oneof=events training achievements community"`
}

// DTO для обновления новости
type UpdateNewsRequest struct {
    Title    string       `json:"title" validate:"omitempty,min=5,max=255"`
    Excerpt  string       `json:"excerpt" validate:"omitempty,min=10,max=500"`
    Content  string       `json:"content" validate:"omitempty,min=50"`
    Image    string       `json:"image"`
    Category NewsCategory `json:"category" validate:"omitempty,oneof=events training achievements community"`
}

// DTO для ответа с новостью
type NewsResponse struct {
    ID        uint         `json:"id"`
    CreatedAt time.Time    `json:"created_at"`
    UpdatedAt time.Time    `json:"updated_at"`
    Title     string       `json:"title"`
    Excerpt   string       `json:"excerpt"`
    Content   string       `json:"content"`
    Image     string       `json:"image"`
    Category  NewsCategory `json:"category"`
    Views     int          `json:"views"`
    Author    AuthorInfo   `json:"author"`
    Comments  int          `json:"comments_count"`
}

type AuthorInfo struct {
    ID        uint   `json:"id"`
    FirstName string `json:"first_name"`
    LastName  string `json:"last_name"`
    Email     string `json:"email,omitempty"`
}

// DTO для комментария
type CreateCommentRequest struct {
    Content string `json:"content" validate:"required,min=1,max=1000"`
}

type CommentResponse struct {
    ID        uint      `json:"id"`
    CreatedAt time.Time `json:"created_at"`
    Content   string    `json:"content"`
    Author    AuthorInfo `json:"author"`
}