package logic

import (
	"context"

	"healthapi/internal/model"
	"healthapi/internal/svc"
	"healthapi/internal/types"
	"healthapi/pkg/errorx"

	"github.com/zeromicro/go-zero/core/logx"
)

type GetConversationsLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewGetConversationsLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetConversationsLogic {
	return &GetConversationsLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *GetConversationsLogic) GetConversations() (resp *types.ConversationListResp, err error) {
	userID, err := GetUserIDFromCtx(l.ctx)
	if err != nil {
		return nil, errorx.ErrUnauthorized
	}

	var conversations []model.Conversation
	l.svcCtx.DB.Where("user_id = ?", userID).Order("updated_at DESC").Find(&conversations)

	resp = &types.ConversationListResp{
		Conversations: make([]types.ConversationItem, 0, len(conversations)),
	}

	for _, c := range conversations {
		resp.Conversations = append(resp.Conversations, types.ConversationItem{
			ID:        uint(c.ID),
			Title:     c.Title,
			CreatedAt: c.CreatedAt.Format("2006-01-02 15:04:05"),
			UpdatedAt: c.UpdatedAt.Format("2006-01-02 15:04:05"),
		})
	}

	return resp, nil
}