package flow

import (
	"ai-agent/workflow/consts/flow"
	"ai-agent/workflow/consts/node"
	"ai-agent/workflow/consts/public"
	fileDao "ai-agent/workflow/dao/file"
	flowDao "ai-agent/workflow/dao/flow"
	"ai-agent/workflow/model/dto"
	fileDto "ai-agent/workflow/model/dto/file"
	flowDto "ai-agent/workflow/model/dto/flow"
	"context"
	"fmt"
	"strconv"
	"strings"
	"time"

	"gitea.com/red-future/common/db/gfdb"
	"gitea.com/red-future/common/utils"
	"github.com/gogf/gf/v2/database/gdb"
	"github.com/gogf/gf/v2/frame/g"
	"github.com/gogf/gf/v2/util/gconv"
)

func StartLambda(ctx context.Context, input any) (any, error) {
	return input, nil
}

func FormLambda(ctx context.Context, input any) (any, error) {
	return input, nil
}

func IntentLambda(ctx context.Context, input any) (any, error) {
	return input, nil
}

// JudgeLambda 分支判断核心：读取IntentLambda的输出 → 返回目标节点ID做路由
func JudgeLambda(ctx context.Context, input any) (string, error) {
	nodeInput, ok := input.(*flowDto.NodeExecutionInput)
	if !ok {
		return "", fmt.Errorf("入参类型错误，期望 *flowDto.NodeExecutionInput，实际 %T", input)
	}
	// 1. 直接用你原来的方法（返回两个 map）
	inputMap, outputMap, modelMap := GetNodeContextContent(nodeInput.Global, nodeInput.Config)
	var outputResult []node.NodeFormField
	for _, valueAny := range inputMap {
		if field, ok := valueAny.(node.NodeFormField); ok {
			outputResult = append(outputResult, field)
		}
	}
	for _, valueAny := range outputMap {
		if field, ok := valueAny.(node.NodeFormField); ok {
			outputResult = append(outputResult, field)
		}
	}
	for _, valueAny := range modelMap {
		if field, ok := valueAny.(node.NodeFormField); ok {
			outputResult = append(outputResult, field)
		}
	}

	contextParts := ""
	for _, v := range nodeInput.Config.FormConfig {
		contextParts = fmt.Sprintf("%s,%s:%s", contextParts, v.Label, v.Value)
	}
	if !nodeInput.Global.IsDialogue {
		for _, v := range outputResult {
			contextParts = fmt.Sprintf("%s,%s:%s", contextParts, v.Label, v.Value)
		}
	}

	if !g.IsEmpty(nodeInput.Global.Desc) {
		contextParts = fmt.Sprintf("%s,%s:%s", contextParts, "描述", nodeInput.Global.Desc)
	}
	configMap := gconv.Map(nodeInput.Config.Config)
	ids := gconv.Strings(configMap["branch_ids"])
	branchIdNameMap := gconv.Map(configMap["branch_id_name_map"])

	// 【重构】构建提示词：展示ID和对应的名称
	var branchIdNameLines []string
	for _, id := range ids {
		name := gconv.String(branchIdNameMap[id])
		branchIdNameLines = append(branchIdNameLines, fmt.Sprintf("%s: %s", id, name))
	}

	getIsChatModel, err := GetIsChatModel(ctx)
	if err != nil {
		return "", err
	}
	req := flowDto.ComposeMessagesReq{
		BuildType: 2,
		ModelName: getIsChatModel.ModelName,
		SkillName: "",
		Cause:     "判断节点",
		Form:      map[string]any{"prompt": strings.Join(branchIdNameLines, "\n")},
		UserForm:  map[string]any{"prompt": contextParts},
		UserFiles: nodeInput.Global.FileUrl,
		SessionId: nodeInput.Global.SessionId,
	}
	msg, err := ComposeMessages(ctx, &req)
	if err != nil {
		return "", err
	}
	if g.IsEmpty(msg.Messages) {
		return "", fmt.Errorf("msg is empty")
	}

	content := ""
	for key, _ := range getIsChatModel.ResponseBody {
		content = gconv.String(msg.Messages[key])
	}

	fmt.Printf("JudgeLambda路由：目标节点ID=%s\n", gconv.String(content))

	return content, nil
}

// TextModelLambda 构建文案
func TextModelLambda(ctx context.Context, input any) (any, error) {
	nodeInput, ok := input.(*flowDto.NodeExecutionInput)
	if !ok {
		return nil, fmt.Errorf("入参类型错误")
	}
	skillName, from, userFrom := BuildParam(nodeInput)
	outputRes, err := TextNode(ctx, nodeInput.Global.SessionId, nodeInput.Config.ModelConfig.ModelName, skillName, from, userFrom, nodeInput.Config.ModelConfig.ModelResponse, nodeInput.Global.FileUrl)
	if err != nil {
		return nil, err
	}
	nodeInput.Config.OutputResult = outputRes
	return nodeInput, nil
}

// ImageModelLambda 构建图片
func ImageModelLambda(ctx context.Context, input any) (any, error) {
	nodeInput, ok := input.(*flowDto.NodeExecutionInput)
	if !ok {
		return nil, fmt.Errorf("入参类型错误")
	}
	skillName, from, userFrom := BuildParam(nodeInput)
	outputRes, err := ImgNode(ctx, nodeInput.Global.SessionId, nodeInput.Config.ModelConfig.ModelName, skillName, from, userFrom, nodeInput.Config.ModelConfig.ModelResponse, nodeInput.Global.FileUrl)
	if err != nil {
		return nil, err
	}
	nodeInput.Config.OutputResult = outputRes
	return nodeInput, nil
}

func MergeLambda(ctx context.Context, input any) (any, error) {
	nodeInput, ok := input.(*flowDto.NodeExecutionInput)
	if !ok {
		return nil, fmt.Errorf("汇总节点入参类型错误")
	}

	// 1. 把所有节点输出拍平成 字段名->内容 的map
	dataMap := make(map[string]node.NodeFormField)
	_, outputMap, _ := GetNodeContextContent(nodeInput.Global, nodeInput.Config)
	for _, valueAny := range outputMap {
		if field, ok := valueAny.(node.NodeFormField); ok {
			dataMap[field.Field] = field
		}
	}

	// 2. 提取所有文案：text_content_0,1,2...
	var contents []node.NodeFormField
	for i := 0; ; i++ {
		key := fmt.Sprintf("text_url:%d", i)
		val, has := dataMap[key]
		if !has || val.Value == "" {
			break
		}
		contents = append(contents, val)
	}

	// 3. 提取所有图片：image_0,1,2...
	var images []string
	for i := 0; ; i++ {
		key := fmt.Sprintf("img_url:%d", i)
		val, has := dataMap[key]
		if !has || val.Value == "" {
			break
		}
		images = append(images, val.Value)
	}

	// 4. 🔥 核心算法：图片按顺序连续归属给每条文案
	textImgMap := make(map[int][]string) // key:文案下标，value:图片列表
	if len(contents) > 0 && len(images) > 0 {
		imgIndex := 0 // 当前用到第几张图片
		totalImg := len(images)

		for i, item := range contents {
			// 图片已分配完，直接退出
			if imgIndex >= totalImg {
				break
			}

			// 当前文案需要挂载的图片数量
			needCount := gconv.Int(item.Expand)
			if needCount <= 0 {
				continue
			}

			var imgList []string
			for imgc := 0; imgc < needCount; imgc++ {
				// 关键：必须判断是否越界
				if imgIndex >= totalImg {
					break
				}
				imgList = append(imgList, images[imgIndex])
				imgIndex++
			}

			// 有图片才存入 map
			if len(imgList) > 0 {
				textImgMap[i] = imgList
			}
		}
	}
	type Item struct {
		Content string   // 文案（可为空）
		Images  []string // 图片（可空、可多张）
	}

	// 🔥 把现有数据转换成通用 Item 列表（支持：纯文案、纯图片、图文任意组合）
	var allItems []Item

	url, err := utils.GetFileAddressPrefix(ctx)
	if err != nil {
		return nil, err
	}
	// 情况1：有文案 → 按文案条目生成 Item（每条文案+对应图片）
	if len(contents) > 0 {
		for i, val := range contents {
			item := Item{
				Content: url + val.Value, // 文案
				Images:  textImgMap[i],   // 自动绑定该条目的图片（没有则为空切片）
			}
			allItems = append(allItems, item)
		}
	} else {
		// 情况2：没有文案，只有图片 → 每张/每组图片生成独立 Item（纯图片条目）
		if len(images) > 0 {
			for _, img := range images {
				allItems = append(allItems, Item{
					Content: "",
					Images:  []string{img},
				})
			}
		}
	}

	// 5. 生成多条独立HTML记录（通用方案：任意图文组合，每条独立生成+独立上传）
	var outputRecords []node.NodeFormField

	// 遍历所有【独立图文条目】 → 每条生成独立HTML、独立上传OSS、独立输出记录
	for idx, item := range allItems {
		// item 结构包含：Content(string) + Images([]string)
		// 支持任意来源：文生图、图生文、单独文、单独图、文图合并

		// 生成单条HTML
		htmlContent := BuildHtml(item.Content, item.Images)

		// 上传OSS（每条独立上传）
		fileName := fmt.Sprintf("item_%d_%d.html", idx, time.Now().UnixMilli())
		ossResult, err := Upload(ctx, &dto.UploadFileBytesReq{
			FileBytes: []byte(htmlContent),
			FileName:  fileName,
		})
		if err != nil {
			return nil, err
		}

		// 拼接成一条输出记录
		// 每条记录包含：HTML内容 + 访问URL + 文案 + 图片列表
		outputRecords = append(outputRecords,
			node.NodeFormField{
				Field: fmt.Sprintf("item_html_%d", idx),
				Value: htmlContent,
				Label: fmt.Sprintf("条目%d HTML", idx+1),
				Type:  "textarea",
			},
			node.NodeFormField{
				Field: fmt.Sprintf("item_html_url_%d", idx),
				Value: ossResult.FileURL,
				Label: fmt.Sprintf("条目%d 地址", idx+1),
				Type:  "text",
			},
			node.NodeFormField{
				Field: fmt.Sprintf("item_txt_url_%d", idx),
				Value: item.Content,
				Label: fmt.Sprintf("条目%d 文案", idx+1),
				Type:  "text",
			},
			node.NodeFormField{
				Field: fmt.Sprintf("item_image_url_%d", idx),
				Value: strings.Join(item.Images, ","),
				Label: fmt.Sprintf("条目%d 图片", idx+1),
				Type:  "text",
			},
		)
	}

	// 最终输出多条记录
	nodeInput.Config.OutputResult = outputRecords
	return nodeInput, nil
}

func SummaryLambda(ctx context.Context, input any) (any, error) {
	execInput, ok := input.(*flowDto.NodeExecutionInput)
	if !ok {
		return nil, fmt.Errorf("汇总节点入参类型错误，实际是 %T", input)
	}

	// 聚合所有已执行节点的输出结果
	var summaryResult []map[string]interface{}
	for _, nodeID := range execInput.Global.ExecutedNodes {
		nodeConfig := execInput.Global.ConfigMap[nodeID]
		if nodeConfig != nil && len(nodeConfig.OutputResult) > 0 {
			for _, field := range nodeConfig.OutputResult {
				if strings.Contains(field.Field, "item_html_url") || strings.Contains(field.Field, "img_url") || strings.Contains(field.Field, "text_url") {
					// 生成 毫秒时间戳 作为 KEY
					timeKey := strconv.FormatInt(time.Now().UnixMilli(), 10)
					item := make(map[string]interface{})
					item[timeKey] = field.Value
					summaryResult = append(summaryResult, item)
				}
			}
		}
	}

	// 把汇总结果存入当前节点的输出
	g.Log().Info(ctx, fmt.Sprintf("结果汇总完成，汇总数据：%+v", summaryResult))

	err := gfdb.DB(ctx, public.DbNameBlackDeacon).Transaction(ctx, func(ctx context.Context, tx gdb.TX) error {
		flowInfo, err := flowDao.FlowExecutionDao.Get(ctx, &flowDto.GetFlowExecutionReq{
			SessionId: execInput.Global.SessionId,
		})
		if err != nil {
			return err
		}

		executionReq := flowDto.UpdateFlowExecutionReq{
			Id:           execInput.Global.ExecutionId,
			Status:       flow.FlowExecutionStatusSuccess.Code(),
			OutputParams: summaryResult,
		}
		_, err = flowDao.FlowExecutionDao.Update(ctx, &executionReq)

		if flowInfo != nil {
			var url string
			url, err = utils.GetFileAddressPrefix(ctx)
			if err != nil {
				return err
			}

			createFileTempReq := make([]*fileDto.CreateFileTempReq, 0, len(flowInfo.OutputParams))
			for _, fileUrl := range flowInfo.OutputParams {
				m := gconv.Map(fileUrl)
				for _, v := range m {
					var createReq = new(fileDto.CreateFileTempReq)
					createReq.BusinessId = flowInfo.SessionId
					createReq.FileUrl = url + gconv.String(v)
					createFileTempReq = append(createFileTempReq, createReq)
				}
			}
			if len(createFileTempReq) > 0 {
				_, err = fileDao.FileTempDao.BatchInsert(ctx, createFileTempReq)
				if err != nil {
					return err
				}
			}
		}
		return nil
	})

	return execInput, err
}

// VideoModelLambda 构建视频
func VideoModelLambda(ctx context.Context, input any) (any, error) {
	fmt.Println("VideoModelLambda:", input)
	return input, nil
}

// AudioModelLambda 构建音频
func AudioModelLambda(ctx context.Context, input any) (any, error) {
	fmt.Println("AudioModelLambda:", input)
	return input, nil
}

// CustomLambda 构建自定义
func CustomLambda(ctx context.Context, input any) (any, error) {
	fmt.Println("CustomLambda:", input)
	return input, nil
}