models/chat.go

package models

import (
	"time"
	"github.com/google/uuid"
	"gorm.io/gorm"
)

type ChatRoom struct {
	ID        uuid.UUID `json:"id" gorm:"type:char(36);primaryKey"`
	UserA     uuid.UUID `json:"user_a" gorm:"type:char(36);index"`
	UserB     uuid.UUID `json:"user_b" gorm:"type:char(36);index"`
	IsActive  bool      `json:"is_active" gorm:"default:true"`
	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`
}

func (r *ChatRoom) BeforeCreate(tx *gorm.DB) error {
	if r.ID == uuid.Nil {
		r.ID = uuid.New()
	}
	return nil
}

type ChatMessage struct {
	ID        uuid.UUID `json:"id" gorm:"type:char(36);primaryKey"`
	RoomID    uuid.UUID `json:"room_id" gorm:"type:char(36);index"`
	SenderID  uuid.UUID `json:"sender_id" gorm:"type:char(36);index"`
	Message   string    `json:"message" gorm:"type:text"`
	CreatedAt time.Time `json:"created_at"`
}

func (m *ChatMessage) BeforeCreate(tx *gorm.DB) error {
	if m.ID == uuid.Nil {
		m.ID = uuid.New()
	}
	return nil
}

type ChatStartResponse struct {
	RoomID    uuid.UUID `json:"room_id"`
	Message   string    `json:"message"`
	CreatedAt time.Time `json:"created_at"`
}

type SendMessageRequest struct {
	Message string `json:"message" validate:"required,min=1,max=1000"`
}

type MessageResponse struct {
	ID        uuid.UUID `json:"id"`
	RoomID    uuid.UUID `json:"room_id"`
	SenderID  uuid.UUID `json:"sender_id"`
	Message   string    `json:"message"`
	CreatedAt time.Time `json:"created_at"`
	IsOwn     bool      `json:"is_own"`
}