// Code scaffolded by goctl. Safe to edit.
// goctl 1.9.2

package ai

import (
	"context"
	"errors"

	"github.com/youruser/base/internal/svc"
	"github.com/youruser/base/internal/types"
	"github.com/youruser/base/model"

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

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

// 获取对话详情
func NewAiConversationGetLogic(ctx context.Context, svcCtx *svc.ServiceContext) *AiConversationGetLogic {
	return &AiConversationGetLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *AiConversationGetLogic) AiConversationGet(req *types.AIConversationGetRequest) (resp *types.AIConversationDetailResponse, err error) {
	userId, _ := l.ctx.Value("userId").(int64)
	if userId == 0 {
		return nil, errors.New("unauthorized")
	}

	conv, err := model.AIConversationFindOne(l.ctx, l.svcCtx.DB, req.Id)
	if err != nil {
		return nil, err
	}
	if conv.UserId != userId {
		return nil, errors.New("forbidden")
	}

	// Get messages
	messages, err := model.AIChatMessageFindByConversation(l.ctx, l.svcCtx.DB, conv.Id)
	if err != nil {
		return nil, err
	}

	msgList := make([]types.AIMessageInfo, len(messages))
	for i, m := range messages {
		msgList[i] = types.AIMessageInfo{
			Id:             m.Id,
			ConversationId: m.ConversationId,
			Role:           m.Role,
			Content:        m.Content,
			TokenCount:     m.TokenCount,
			Cost:           m.Cost,
			ModelId:        m.ModelId,
			LatencyMs:      m.LatencyMs,
			CreatedAt:      m.CreatedAt.Format("2006-01-02 15:04:05"),
		}
	}

	return &types.AIConversationDetailResponse{
		Conversation: types.AIConversationInfo{
			Id:          conv.Id,
			Title:       conv.Title,
			ModelId:     conv.ModelId,
			ProviderId:  conv.ProviderId,
			TotalTokens: conv.TotalTokens,
			TotalCost:   conv.TotalCost,
			IsArchived:  conv.IsArchived,
			CreatedAt:   conv.CreatedAt.Format("2006-01-02 15:04:05"),
			UpdatedAt:   conv.UpdatedAt.Format("2006-01-02 15:04:05"),
		},
		Messages: msgList,
	}, nil
}