package user

import (
	"time"
	"yunyan/comm"
	"yunyan/lego/sys/log"
	"yunyan/lego/sys/mysql"
	"yunyan/pb"
)

// @Summary 使用资源请求
// @Description 上报一次用量（翻译秒数 / 会议秒数 / AI 对话字数）。服务端记原始统计，并按后台换算系数折算成算力做记账。
// @Tags User
// @Accept  json
// @Produce  json
// @Security BearerAuth
// @Param user body pb.UserUsagesReq true "使用资源请求"
// @Success 200 {object} comm.HttpResult{data=pb.UserUsagesResp} "成功返回"
// @Router /api/home/user_usages [post]
//
// 2026-09 起本接口**不再扣三个额度桶、不再因余额不足拒绝**——功能准入只看 VIP（见 comm.ResolveVip），
// 用量统一折算成算力（见 comm.ApplyComputeUsage）：先扣设备赠送、再扣用户余额；
// 算力闸门（COMPUTE_GATE）默认关，余额不够也放行、差额记为超额。
//
// ⚠️ 客户端只上报**原始量**（秒 / 字符数），不上报算力：换算系数在后台可改，客户端自己算的话
// 改一次系数就要发一次版。客户端拿到的算力是本接口**返回**的。
func (this *apiComp) Usages(session comm.IUserSession, req *pb.UserUsagesReq) (resp *pb.UserUsagesResp, errdata *pb.ErrorData) {
	var (
		user       *pb.DBUser
		statistics *pb.DBUserStatistics
		userlog    *pb.DBUserUseLog
		kind       comm.ComputeUsageKind
		raw        int64
		err        error
	)
	user, err = this.module.model.findforid(session.GetUserId())
	if err != nil {
		errdata = &pb.ErrorData{Code: pb.ErrorCode_DBError, Message: err.Error()}
		return
	}
	statistics, err = this.module.model.getStatistics(session.GetUserId())
	if err != nil && err != mysql.ErrNoDocuments {
		errdata = &pb.ErrorData{Code: pb.ErrorCode_DBError, Message: err.Error()}
		return
	}
	userlog = &pb.DBUserUseLog{
		Uid:     session.GetUserId(),
		Logtype: pb.UserLogType_UserConsume,
		Ts:      time.Now().Unix(),
	}
	// ── 原始统计照记（现有字段不动，看板与结算还在用） ──
	switch req.Usagetype {
	case pb.UsageType_Trade:
		kind = comm.ComputeUsageTranslate
		if v, ok := req.Usages["TRANSLATION_MODE_simultaneous"]; ok && v > 0 {
			statistics.Trademodel1Num += 1
			statistics.Trademodel1Time += v
			raw += v
		}
		if v, ok := req.Usages["TRANSLATION_MODE_faceToFace"]; ok && v > 0 {
			statistics.Trademodel2Num += 1
			statistics.Trademodel2Time += v
			raw += v
		}
		if v, ok := req.Usages["TRANSLATION_MODE_call"]; ok && v > 0 {
			statistics.Trademodel3Num += 1
			statistics.Trademodel3Time += v
			raw += v
		}
		if v, ok := req.Usages["TRANSLATION_MODE_audioVideo"]; ok && v > 0 {
			statistics.Trademodel4Num += 1
			statistics.Trademodel4Time += v
			raw += v
		}
		// 原实现把翻译秒数写进了 Addagentintegral（AI 那一列），这里改回正确的列。
		userlog.Addtradesecond = -raw
	case pb.UsageType_Meet:
		kind = comm.ComputeUsageMeeting
		if v, ok := req.Usages["MEETING_ASR_AUDIO_SECONDS"]; ok && v > 0 {
			statistics.Meetnum += 1
			statistics.Meettime += v
			raw = v
			userlog.Addmeetsecond = -v
		}
	case pb.UsageType_AI:
		kind = comm.ComputeUsageAIChat
		statistics.Aichatnum += 1
		// 这两列名字里带 token，但存的是**字符数**（Unicode 码点），与大模型自己的 tokenizer 无关。
		// 字段早就有、一直没人写；老客户端不传字数时 raw=0 → 本次不扣算力、只记一次。
		statistics.Aichatuptoken += req.Upchars
		statistics.Aichatdowntoken += req.Downchars
		raw = req.Upchars + req.Downchars
		userlog.Addagentintegral = -1
	default:
		errdata = &pb.ErrorData{Code: pb.ErrorCode_ReqParameterError, Message: "未知的用量类型"}
		return
	}

	// ── 算力记账 ──
	res, err := comm.ApplyComputeUsage(session.GetUserId(), kind, raw, userlog, statistics)
	if err != nil {
		this.module.Error("Usages: 算力记账失败",
			log.Field{Key: "uid", Value: session.GetUserId()},
			log.Field{Key: "kind", Value: int(kind)},
			log.Field{Key: "raw", Value: raw},
			log.Field{Key: "err", Value: err.Error()})
		errdata = &pb.ErrorData{Code: pb.ErrorCode_DBError, Message: err.Error()}
		return
	}
	if res.Rejected {
		errdata = &pb.ErrorData{Code: pb.ErrorCode_ComputeNotEnough, Message: "算力不足"}
		return
	}
	if err = this.module.model.updateStatistics(statistics); err != nil {
		errdata = &pb.ErrorData{Code: pb.ErrorCode_DBError, Message: err.Error()}
		return
	}
	if err = this.module.model.addIntegralLog(userlog); err != nil {
		errdata = &pb.ErrorData{Code: pb.ErrorCode_DBError, Message: err.Error()}
		return
	}
	// 资源消耗埋点（口径不变）
	if this.module.analyze != nil {
		switch req.Usagetype {
		case pb.UsageType_Trade:
			this.module.analyze.Report(&comm.StatEvent{Type: comm.StatEventTranslate, ProductId: user.Lastbindproductid, ChannelId: user.Lastbindchannelid, Uid: session.GetUserId(), Second: raw})
		case pb.UsageType_Meet:
			this.module.analyze.Report(&comm.StatEvent{Type: comm.StatEventMeeting, ProductId: user.Lastbindproductid, ChannelId: user.Lastbindchannelid, Uid: session.GetUserId(), Second: raw})
		case pb.UsageType_AI:
			this.module.analyze.Report(&comm.StatEvent{Type: comm.StatEventAiChat, ProductId: user.Lastbindproductid, ChannelId: user.Lastbindchannelid, Uid: session.GetUserId()})
		}
	}
	// 兼容：老客户端按 usages[usagetype] 读「剩余量」。三桶已停用，这里回算力剩余合计而不是 0——
	// 老包若在本地拿剩余量做闸门，回 0 会把它锁死。单位对不上是过渡期的已知代价。
	left := res.DeviceLeft + res.UserLeft
	resp = &pb.UserUsagesResp{
		Usages:            map[int32]int64{int32(req.Usagetype): left},
		Compute:           res.Compute,
		Computedeviceleft: res.DeviceLeft,
		Computeuserleft:   res.UserLeft,
		Over:              res.Over,
	}
	return
}