package services

import (
	"ai_scheduler/internal/biz"
	"ai_scheduler/internal/biz/handle/qywx/json_callback/wxbizjsonmsgcrypt"
	"ai_scheduler/internal/config"
	"ai_scheduler/internal/data/constants"
	errorcode "ai_scheduler/internal/data/error"
	"ai_scheduler/internal/domain/component/callback"
	"ai_scheduler/internal/entitys"
	"ai_scheduler/internal/gateway"
	"ai_scheduler/internal/pkg"
	"ai_scheduler/internal/pkg/dingtalk"
	"ai_scheduler/internal/pkg/util"
	"ai_scheduler/internal/pkg/utils_ollama"
	"ai_scheduler/internal/tool_callback"
	"context"
	"encoding/json"
	"fmt"
	"net/url"
	"strings"
	"time"

	"gitea.cdlsxd.cn/self-tools/l-dingtalk-stream-sdk-go/chatbot"
	"github.com/alibabacloud-go/dingtalk/card_1_0"
	"github.com/alibabacloud-go/tea/tea"
	"github.com/gofiber/fiber/v2"
	"github.com/gofiber/fiber/v2/log"
	"github.com/ollama/ollama/api"
)

// CallbackService 统一回调入口
type CallbackService struct {
	cfg                   *config.Config
	gateway               *gateway.Gateway
	dingtalkOldClient     *dingtalk.OldClient
	dingtalkContactClient *dingtalk.ContactClient
	dingtalkNotableClient *dingtalk.NotableClient
	dingtalkCardClient    *dingtalk.CardClient
	callbackManager       callback.Manager
	dingTalkBotBiz        *biz.DingTalkBotBiz
	ollamaClient          *utils_ollama.Client
}

func NewCallbackService(
	cfg *config.Config,
	gateway *gateway.Gateway,
	dingtalkOldClient *dingtalk.OldClient,
	dingtalkContactClient *dingtalk.ContactClient,
	dingtalkNotableClient *dingtalk.NotableClient,
	dingtalkCardClient *dingtalk.CardClient,
	callbackManager callback.Manager,
	dingTalkBotBiz *biz.DingTalkBotBiz,
	ollamaClient *utils_ollama.Client,
) *CallbackService {
	return &CallbackService{
		cfg:                   cfg,
		gateway:               gateway,
		dingtalkOldClient:     dingtalkOldClient,
		dingtalkContactClient: dingtalkContactClient,
		dingtalkNotableClient: dingtalkNotableClient,
		dingtalkCardClient:    dingtalkCardClient,
		callbackManager:       callbackManager,
		dingTalkBotBiz:        dingTalkBotBiz,
		ollamaClient:          ollamaClient,
	}
}

// Envelope 回调统一请求体
type Envelope struct {
	Action string          `json:"action"`
	TaskID string          `json:"task_id"`
	Data   json.RawMessage `json:"data"`
}

// bug_optimization_submit 工单回调
const (
	ActionBugOptimizationSubmitProcess = "bug_optimization_submit_process" // 工单过程回调
	ActionBugOptimizationSubmitDone    = "bug_optimization_submit_done"    // 工单完成回调
	ActionBugOptimizationSubmitUpdate  = "bug_optimization_submit_update"  // 工单更新回调
)

// BugOptimizationSubmitDoneData 工单完成回调数据
type BugOptimizationSubmitDoneData struct {
	Receivers  []string `json:"receivers"`
	DetailPage string   `json:"detail_page"`
	Msg        string   `json:"msg"`
}

// BugOptimizationSubmitUpdateData 工单更新回调数据
type BugOptimizationSubmitUpdateData struct {
	BaseId   string `json:"base_id"`   // 表格ID
	SheetId  string `json:"sheet_id"`  // 表单ID
	RecordId string `json:"record_id"` // 记录ID
	UnionId  string `json:"union_id"`  // 钉钉用户 UnionID
	Creator  string `json:"creator"`   // 钉钉用户名称
}

// Callback 统一回调处理
// 头部：X-Source-Key / X-Timestamp
func (s *CallbackService) Callback(c *fiber.Ctx) error {
	// 读取头
	sourceKey := strings.TrimSpace(c.Get("X-Source-Key"))
	ts := strings.TrimSpace(c.Get("X-Timestamp"))

	// 时间窗口（如果提供了 ts 则校验，否则跳过），窗口 5 分钟
	// if ts != "" && !validateTimestamp(ts, 5*time.Minute) {
	if ts != "" && !util.IsInTimeWindow(ts, 5*time.Minute) {
		return errorcode.AuthNotFound
	}

	// 解析 Envelope
	var env Envelope
	if err := json.Unmarshal(c.Body(), &env); err != nil {
		return errorcode.ParamErrf("invalid json: %v", err)
	}
	if env.Action == "" || env.TaskID == "" {
		return errorcode.ParamErrf("missing action/task_id")
	}
	if env.Data == nil {
		return errorcode.ParamErrf("missing data")
	}

	switch sourceKey {
	case "dingtalk":
		return s.handleDingTalkCallback(c, env)
	default:
		return errorcode.AuthNotFound
	}
}

func (s *CallbackService) CallbackQr(c *fiber.Ctx) error {
	// 读取头
	sourceKey := strings.TrimSpace(c.Get("X-Source-Key"))
	ts := strings.TrimSpace(c.Get("X-Timestamp"))

	// 时间窗口（如果提供了 ts 则校验，否则跳过），窗口 5 分钟
	// if ts != "" && !validateTimestamp(ts, 5*time.Minute) {
	if ts != "" && !util.IsInTimeWindow(ts, 5*time.Minute) {
		return errorcode.AuthNotFound
	}

	// 解析 Envelope
	var env Envelope
	if err := json.Unmarshal(c.Body(), &env); err != nil {
		return errorcode.ParamErrf("invalid json: %v", err)
	}
	if env.Action == "" || env.TaskID == "" {
		return errorcode.ParamErrf("missing action/task_id")
	}
	if env.Data == nil {
		return errorcode.ParamErrf("missing data")
	}

	switch sourceKey {
	case "dingtalk":
		return s.handleDingTalkCallback(c, env)
	default:
		return errorcode.AuthNotFound
	}
}

func (s *CallbackService) handleDingTalkCallback(c *fiber.Ctx, env Envelope) error {
	// 校验taskId
	ctx := c.Context()
	sessionID, err := s.callbackManager.GetSession(ctx, env.TaskID)
	if err != nil {
		return errorcode.ParamErrf("failed to get session for task_id: %s, err: %v", env.TaskID, err)
	}
	if sessionID == "" {
		return errorcode.ParamErrf("missing session_id for task_id: %s", env.TaskID)
	}

	switch env.Action {
	case ActionBugOptimizationSubmitUpdate:
		// 业务处理
		msg, businessErr := s.handleBugOptimizationSubmitUpdate(ctx, env.Data)
		if businessErr != nil {
			return businessErr
		}

		s.sendStreamLog(sessionID, msg)

		return c.JSON(fiber.Map{"code": 0, "message": "ok"})
	case ActionBugOptimizationSubmitDone:
		// 业务处理
		msg, businessErr := s.handleBugOptimizationSubmitDone(ctx, env.Data)
		if businessErr != nil {
			return businessErr
		}

		// 发送日志
		s.sendStreamTxt(sessionID, msg)

		// 通知等待者
		if err := s.callbackManager.Notify(ctx, env.TaskID, msg); err != nil {
			// 记录错误但继续
		}

		return c.JSON(fiber.Map{"code": 0, "message": "ok"})
	case ActionBugOptimizationSubmitProcess:
		type processData struct {
			Process string `json:"process"`
		}
		var data processData
		if err := json.Unmarshal(env.Data, &data); err != nil {
			return errorcode.ParamErrf("invalid json: %v", err)
		}

		s.sendStreamLoading(sessionID, data.Process)

		return c.JSON(fiber.Map{"code": 0, "message": "ok"})
	default:
		return errorcode.ParamErrf("unknown action: %s", env.Action)
	}
}

// getDingtalkReceivers 解析接收者字符串为 DingTalk 用户 ID 列表
func (s *CallbackService) getDingtalkReceivers(ctx context.Context, receiverIds []string) string {
	var receiverNames []string
	for _, receiverId := range receiverIds {
		userDetails, err := s.dingtalkOldClient.QueryUserDetails(ctx, receiverId)
		if err != nil {
			return ""
		}
		if userDetails == nil {
			return ""
		}
		receiverNames = append(receiverNames, "@"+userDetails.Name)
	}

	receivers := strings.Join(receiverNames, " ")

	return receivers
}

// sendStreamLog 发送流式日志
func (s *CallbackService) sendStreamLog(sessionID string, content string) {
	if content == "" {
		return
	}

	streamLog := entitys.Response{
		Index:   string(constants.BotToolsBugOptimizationSubmit),
		Content: content,
		Type:    entitys.ResponseLog,
	}
	streamLogBytes := pkg.JsonByteIgonErr(streamLog)
	s.gateway.SendToUid(sessionID, streamLogBytes)
}

// sendStreamTxt 发送流式文本
func (s *CallbackService) sendStreamTxt(sessionID string, content string) {
	if content == "" {
		return
	}

	streamLog := entitys.Response{
		Index:   string(constants.BotToolsBugOptimizationSubmit),
		Content: content,
		Type:    entitys.ResponseText,
	}
	streamLogBytes := pkg.JsonByteIgonErr(streamLog)
	s.gateway.SendToUid(sessionID, streamLogBytes)
}

// sendStreamLoading 发送流式加载过程
func (s *CallbackService) sendStreamLoading(sessionID string, content string) {
	if content == "" {
		return
	}

	streamLog := entitys.Response{
		Index:   string(constants.BotToolsBugOptimizationSubmit),
		Content: content,
		Type:    entitys.ResponseLoading,
	}
	streamLogBytes := pkg.JsonByteIgonErr(streamLog)
	s.gateway.SendToUid(sessionID, streamLogBytes)
}

// handleBugOptimizationSubmitUpdate 处理 bug 优化提交更新回调
func (s *CallbackService) handleBugOptimizationSubmitUpdate(ctx context.Context, taskData json.RawMessage) (string, *errorcode.BusinessErr) {
	var data BugOptimizationSubmitUpdateData
	if err := json.Unmarshal(taskData, &data); err != nil {
		return "", errorcode.ParamErrf("invalid data type: %v", err)
	}

	if data.Creator == "" {
		return "", errorcode.ParamErrf("empty creator")
	}

	// 获取创建者uid
	accessToken, _ := s.dingtalkOldClient.GetAccessToken()
	creatorId, err := s.dingtalkContactClient.SearchUserOne(dingtalk.AppKey{AccessToken: accessToken}, data.Creator)
	if err != nil {
		return "", errorcode.ParamErrf("invalid data type: %v", err)
	}

	// 获取用户详情
	userDetails, err := s.dingtalkOldClient.QueryUserDetails(ctx, creatorId)
	if err != nil {
		return "", errorcode.ParamErrf("invalid data type: %v", err)
	}
	if userDetails == nil {
		return "", errorcode.ParamErrf("user details not found")
	}
	unionId := userDetails.UnionID

	// 更新记录
	ok, err := s.dingtalkNotableClient.UpdateRecord(dingtalk.AppKey{AccessToken: accessToken}, &dingtalk.UpdateRecordReq{
		BaseId:         data.BaseId,
		SheetId:        data.SheetId,
		RecordId:       data.RecordId,
		OperatorId:     tool_callback.BotBugOptimizationSubmitAdminUnionId,
		CreatorUnionId: unionId,
	})
	if err != nil {
		return "", errorcode.ParamErrf("invalid data type: %v", err)
	}
	if !ok {
		return "", errorcode.ParamErrf("update record failed")
	}

	return "问题记录即将完成", nil
}

// handleBugOptimizationSubmitDone 处理 bug 优化提交完成回调
func (s *CallbackService) handleBugOptimizationSubmitDone(ctx context.Context, taskData json.RawMessage) (string, *errorcode.BusinessErr) {
	var data BugOptimizationSubmitDoneData
	if err := json.Unmarshal(taskData, &data); err != nil {
		return "", errorcode.ParamErrf("invalid data type: %v", err)
	}

	if len(data.Receivers) == 0 {
		return "", errorcode.ParamErrf("empty receivers")
	}
	// 构建接收者
	receivers := s.getDingtalkReceivers(ctx, data.Receivers)
	if receivers == "" {
		return "", errorcode.ParamErrf("invalid receivers")
	}

	// 构建跳转链接
	var detailPage string
	if data.DetailPage != "" {
		detailPage = util.BuildJumpLink(data.DetailPage, "去查看")
	}

	msg := data.Msg
	msg = util.ReplacePlaceholder(msg, "receivers", receivers)
	msg = util.ReplacePlaceholder(msg, "detail_page", detailPage)

	return msg, nil
}

func (s *CallbackService) QywxCallback(c *fiber.Ctx) (err error) {
	// 读取头
	httpstr := string(c.Request().URI().QueryString())

	start := strings.Index(httpstr, "msg_signature=")
	start += len("msg_signature=")
	var msgSignature string
	next := getString(httpstr, "&timestamp=", start, &msgSignature)
	var timestamp string
	next = getString(httpstr, "&nonce=", next, &timestamp)
	var nonce string
	next = getString(httpstr, "&echostr=", next, &nonce)
	echostr := httpstr[next:len(httpstr)]
	echostr, _ = url.QueryUnescape(echostr)
	fmt.Println(httpstr, msgSignature, timestamp, nonce, echostr)
	wxcpt := wxbizjsonmsgcrypt.NewWXBizMsgCrypt(s.cfg.Qywx.Token, s.cfg.Qywx.AES_KEY, s.cfg.Qywx.CorpId, wxbizjsonmsgcrypt.JsonType)
	echoStr, cryptErr := wxcpt.VerifyURL(msgSignature, timestamp, nonce, echostr)
	if nil != cryptErr {
		log.Errorf("%v", cryptErr)
		return fmt.Errorf("%v", cryptErr)
	}
	fmt.Println("verifyUrl success echoStr", string(echoStr))
	err = c.Send(echoStr)
	return err

}

func getString(str, endstr string, start int, msg *string) int {
	end := strings.Index(str, endstr)
	*msg = str[start:end]
	return end + len(endstr)
}

// CallbackDingtalkRobot 钉钉机器人回调
// 钉钉 callbackRouteKey: gateway.dev.cdlsxd.cn-dingtalk-robot
// 钉钉 apiSecret: aB3dE7fG9hI2jK4L5M6N7O8P9Q0R1S2T
func (s *CallbackService) CallbackDingtalkRobot(c *fiber.Ctx) (err error) {
	// 获取body中的参数
	body := c.Request().Body()
	var data chatbot.BotCallbackDataModel
	if err := json.Unmarshal(body, &data); err != nil {
		return fmt.Errorf("invalid body: %v", err)
	}

	fmt.Println(string(body))

	// token 校验 ? token 好像没带？

	// 通过机器人ID路由到不同能力
	switch data.RobotCode {
	case constants.GroupTemplateRobotIdIssueHandling:
		// 问题处理群机器人
		err := s.issueHandling(c, data)
		if err != nil {
			return fmt.Errorf("issueHandling failed: %v", err)
		}
	default:
		// 其他机器人
		return nil
	}

	// ctx, cancel := context.WithTimeout(context.Background(), 5*time.Minute)
	// defer cancel()

	// 统一初始化请求参数
	// requireData, err := s.dingTalkBotBiz.InitRequire(ctx, &data)
	// if err != nil {
	// 	return fmt.Errorf("初始化请求参数失败: %v", err)
	// }

	// 这里需要再实现一套HTTP形式的回调，用于处理钉钉群模板机器人的回调
	// 主程等待处理结果
	// resChan := make(chan string, 10)
	// defer close(resChan)

	return nil
}

// issueHandling 问题处理群机器人回调
// 能力1： 通过[内容提取] 宏，分析用户QA问题，调出QA表单卡片
// 能力2： 通过[QA收集] 宏，收集用户反馈，写入知识库
func (s *CallbackService) issueHandling(c *fiber.Ctx, data chatbot.BotCallbackDataModel) error {
	// 宏解析
	if strings.Contains(data.Text.Content, "[内容提取]") {
		s.issueHandlingExtractContent(data)
	}
	if strings.Contains(data.Text.Content, "[QA收集]") {
		s.issueHandlingCollectQA()
	}

	return nil
}

// 问题处理群机器人内容提取
func (s *CallbackService) issueHandlingExtractContent(data chatbot.BotCallbackDataModel) {
	systemPrompt := `你是一个【问题与答案生成助手】。
	
	你的职责是：
	- 分析用户输入的内容
	- 识别其中隐含或明确的问题
	- 基于输入内容本身，生成对应的问题与答案

	当用户输入为【多条群聊聊天记录】时：
	- 结合问题主题，判断聊天记录中正在讨论或试图解决的问题
	- 一个群聊中可能包含多个相互独立的问题，但它们都围绕着一个主题，尽可能总结为一个问题
	- 若确实问题很独立，需要分别识别，对每个问题，整理出清晰、可复用的“问题描述”和“对应答案”

	生成答案时的原则：
	- 答案必须来源于聊天内容中已经给出的信息或共识
	- 不要引入外部知识，不要使用聊天记录中真实人名或敏感信息，适当总结
	- 若聊天中未形成明确答案，应明确标记为“暂无明确结论”
	- 若存在多种不同观点，应分别列出，不要擅自合并或裁决

	【JSON 输出原则】：
	- 你的最终输出必须是**合法的 JSON**
	- 不得输出任何额外解释性文字
	- JSON 结构必须严格符合以下约定

	JSON 结构约定：
	{
	"items": [
		{
		"question": "清晰、独立、可复用的问题描述",
		"answer": "基于聊天内容整理出的答案；如无结论则为“暂无明确结论”",
		"confidence": "high | medium | low"
		}
	]
	}

	字段说明：
	- items：问题与答案列表；若未识别到有效问题，则返回空数组 []
	- question：抽象后的标准问题表述，不包含具体聊天语句
	- answer：整理后的答案，不得引入聊天之外的信息
	- confidence：根据聊天中信息的一致性和明确程度给出判断

	如果无法从输入中识别出任何有效问题，返回：
	{ "items": [] }

	问题主题：
	%s

	用户输入：
	%s
	`

	prompt := fmt.Sprintf(systemPrompt, "紧急加款，提示当前账户为离线账户，请输入银行流水号", data.Text.Content)

	fmt.Println("prompt:", prompt)

	generateResp, err := s.ollamaClient.Generation(context.Background(), &api.GenerateRequest{
		Model:  s.cfg.Ollama.GenerateModel,
		Prompt: prompt,
		Stream: util.AnyToPoint(false),
	})
	if err != nil {
		log.Errorf("问题提取失败: %v", err)
		return
	}

	// 解析 JSON 响应
	var resp struct {
		Items []struct {
			Question   string `json:"question"`
			Answer     string `json:"answer"`
			Confidence string `json:"confidence"`
		} `json:"items"`
	}
	if err := json.Unmarshal([]byte(generateResp.Response), &resp); err != nil {
		log.Errorf("解析 JSON 响应失败: %v", err)
		return
	}

	cardContentTpl := "问题：%s \n答案：%s"
	var cardContentList []string
	for _, item := range resp.Items {
		cardContentList = append(cardContentList, fmt.Sprintf(cardContentTpl, item.Question, item.Answer))
	}
	cardContent := strings.Join(cardContentList, "\n\n")

	// 调用卡片
	// 构建卡片 OutTrackId
	outTrackId := constants.BuildCardOutTrackId(data.ConversationId, data.RobotCode)

	_, err = s.dingtalkCardClient.CreateAndDeliver(
		dingtalk.AppKey{
			AppKey:    "ding5wwvnf9hxeyjau7t",
			AppSecret: "FxXVlTzxrKXvJ8h-9uK0s5TjaBfOJSXumpmrHal-NmQAtku9wOPxcss0Af6WHoAK",
		},
		&card_1_0.CreateAndDeliverRequest{
			CardTemplateId:   tea.String("3a447814-6a3e-4a02-b48a-92c57b349d77.schema"),
			OutTrackId:       tea.String(outTrackId),
			CallbackType:     tea.String("HTTP"),
			CallbackRouteKey: tea.String("gateway.dev.cdlsxd.cn-dingtalk-robot"),
			CardData: &card_1_0.CreateAndDeliverRequestCardData{
				CardParamMap: map[string]*string{
					"title":                  tea.String("QA知识收集"),
					"button_display":         tea.String("true"),
					"QA_details_now":         tea.String(cardContent),
					"textarea_display":       tea.String("normal"),
					"action_id":              tea.String("collect_qa"),
					"tenant_id":              tea.String(constants.KnowledgeTenantIdDefault),
					"_CARD_DEBUG_TOOL_ENTRY": tea.String("show"), // debug字段
				},
			},
			ImGroupOpenSpaceModel: &card_1_0.CreateAndDeliverRequestImGroupOpenSpaceModel{
				SupportForward: tea.Bool(false),
			},
			OpenSpaceId: tea.String("dtv1.card//im_group." + data.ConversationId),
			ImGroupOpenDeliverModel: &card_1_0.CreateAndDeliverRequestImGroupOpenDeliverModel{
				RobotCode: tea.String(constants.GroupTemplateRobotIdIssueHandling),
				Recipients: []*string{
					tea.String(data.SenderStaffId),
				},
			},
		},
	)

}

// 问题处理群机器人 QA 收集
func (s *CallbackService) issueHandlingCollectQA() {

}

// CallbackDingtalkCard 处理钉钉卡片回调
// 钉钉 callbackRouteKey: gateway.dev.cdlsxd.cn-dingtalk-card
// 钉钉 apiSecret: aB3dE7fG9hI2jK4L5M6N7O8P9Q0R1S2T
func (s *CallbackService) CallbackDingtalkCard(ctx *fiber.Ctx) error {
	return ctx.SendString("dingtalk card callback")
}