package data

import (
	"context"
	"fmt"
	"strconv"
	"strings"
	"time"

	"github.com/mark3labs/mcp-go/mcp"
	"github.com/mark3labs/mcp-go/server"

	"fwh-toolbox-server/cmd/mcp/tools/helper"
	"fwh-toolbox-server/domain"
	"fwh-toolbox-server/dto"
	"fwh-toolbox-server/repositories"
)

func registerFwhApiTools(s *server.MCPServer) {
	// 站点信息
	s.AddTool(
		mcp.NewTool("data_fwh_query_site_base_info_list",
			mcp.WithDescription("查询站点基本信息列表（FWH Pro API）"),
			mcp.WithString("sn", mcp.Description("站点SN，多个用逗号分隔")),
			mcp.WithNumber("page", mcp.Description("页码，默认1")),
			mcp.WithNumber("size", mcp.Description("每页数量，默认20")),
		),
		handleFwhQuerySiteBaseInfoList,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_site_list",
			mcp.WithDescription("查询站点列表（FWH Pro API，支持SN搜索）"),
			mcp.WithString("sn", mcp.Description("站点SN搜索")),
			mcp.WithNumber("page", mcp.Description("页码，默认1")),
			mcp.WithNumber("size", mcp.Description("每页数量，默认20")),
		),
		handleFwhQuerySiteList,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_site_mode_info",
			mcp.WithDescription("查询站点工作模式信息（FWH Pro API）"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("站点SN")),
		),
		handleFwhQuerySiteModeInfo,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_site_power_flow",
			mcp.WithDescription("查询站点指定日期的功率流数据（FWH Pro API）"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("站点SN")),
			mcp.WithString("date", mcp.Required(), mcp.Description("日期，格式 yyyy-MM-dd")),
		),
		handleFwhQuerySitePowerFlow,
	)

	// 告警相关
	s.AddTool(
		mcp.NewTool("data_fwh_query_site_alarm_list",
			mcp.WithDescription("查询站点当前告警列表（FWH Pro API）"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("站点SN")),
		),
		handleFwhQuerySiteAlarmList,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_event_alarm_list",
			mcp.WithDescription("查询站点时间范围内的事件/告警日志（FWH Pro API）。注意：大时间范围查询可能较慢"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("站点SN")),
			mcp.WithString("start_time", mcp.Required(), mcp.Description("开始时间，格式 yyyy-MM-dd HH:mm:ss")),
			mcp.WithString("end_time", mcp.Required(), mcp.Description("结束时间，格式 yyyy-MM-dd HH:mm:ss")),
			mcp.WithString("type", mcp.Description("类型：all（默认）、event、alarm")),
		),
		handleFwhQueryEventAlarmList,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_alarm_snapshot",
			mcp.WithDescription("查询站点告警快照信息（FWH Pro API）"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("站点SN")),
			mcp.WithString("date", mcp.Required(), mcp.Description("日期，格式 yyyy-MM-dd")),
		),
		handleFwhQueryAlarmSnapshot,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_alarm_statistics",
			mcp.WithDescription("查询实时告警统计数据（FWH Pro API）"),
			mcp.WithNumber("country", mcp.Description("国家ID: 0-全部(默认), 2-美国, 3-澳大利亚")),
			mcp.WithNumber("page", mcp.Description("页码，默认1")),
		),
		handleFwhQueryAlarmStatistics,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_alarm_statistics_from_code",
			mcp.WithDescription("按告警码查询触发站点列表（FWH Pro API）"),
			mcp.WithString("alarm_code", mcp.Required(), mcp.Description("告警码")),
			mcp.WithNumber("country", mcp.Description("国家ID: 0-全部(默认), 2-美国, 3-澳大利亚")),
			mcp.WithNumber("page", mcp.Description("页码，默认1")),
		),
		handleFwhQueryAlarmStatisticsFromCode,
	)

	// MQTT日志
	s.AddTool(
		mcp.NewTool("data_fwh_query_mqtt_log_list",
			mcp.WithDescription("查询站点时间范围内的MQTT日志（FWH Pro API）。注意：大时间范围查询可能较慢"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("站点SN")),
			mcp.WithString("cmd_type", mcp.Required(), mcp.Description("MQTT命令类型（如 0, 101, 201 等）")),
			mcp.WithString("start_time", mcp.Required(), mcp.Description("开始时间，格式 yyyy-MM-dd HH:mm:ss")),
			mcp.WithString("end_time", mcp.Required(), mcp.Description("结束时间，格式 yyyy-MM-dd HH:mm:ss")),
		),
		handleFwhQueryMqttLogList,
	)

	// 停机列表
	s.AddTool(
		mcp.NewTool("data_fwh_query_shutdown_list",
			mcp.WithDescription("查询Shutdown站点列表（FWH Pro API）"),
			mcp.WithString("date", mcp.Required(), mcp.Description("日期，格式 yyyy-MM-dd")),
			mcp.WithNumber("country", mcp.Description("国家ID: 0-全部(默认), 2-美国, 3-澳大利亚")),
		),
		handleFwhQueryShutdownList,
	)

	// EMS日志
	s.AddTool(
		mcp.NewTool("data_fwh_query_ems_log_record",
			mcp.WithDescription("查询EMS日志召唤记录（FWH Pro API）"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("站点SN")),
		),
		handleFwhQueryEmsLogRecord,
	)

	// 故障录波
	s.AddTool(
		mcp.NewTool("data_fwh_query_fault_record_list",
			mcp.WithDescription("查询故障录波日志列表（FWH Pro API）"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("站点SN")),
			mcp.WithString("start_time", mcp.Required(), mcp.Description("开始时间，格式 yyyy-MM-dd HH:mm:ss")),
			mcp.WithString("end_time", mcp.Required(), mcp.Description("结束时间，格式 yyyy-MM-dd HH:mm:ss")),
		),
		handleFwhQueryFaultRecordList,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_fault_record_callable_list",
			mcp.WithDescription("查询设备可召唤的故障录波数据列表（FWH Pro API）"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("设备SN（aGate/aPower/aHub）")),
			mcp.WithNumber("dev_type", mcp.Description("设备类型: 0-aPower, 1-aGate, 2-MPPT, 3-aHub（默认1）")),
		),
		handleFwhQueryFaultRecordCallableList,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_fault_record_call_record_list",
			mcp.WithDescription("查询故障录波召唤记录（FWH Pro API）"),
		),
		handleFwhQueryFaultRecordCallRecordList,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_fault_record_sub_list",
			mcp.WithDescription("查询故障录波子记录（FWH Pro API）"),
			mcp.WithString("fault_id", mcp.Required(), mcp.Description("故障录波记录ID")),
		),
		handleFwhQueryFaultRecordSubList,
	)

	// 系统升级
	s.AddTool(
		mcp.NewTool("data_fwh_query_system_update_log",
			mcp.WithDescription("查询系统升级记录（FWH Pro API）"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("站点SN")),
		),
		handleFwhQuerySystemUpdateLog,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_system_update_log_detail",
			mcp.WithDescription("查询系统升级记录详细信息（FWH Pro API）"),
			mcp.WithString("order_id", mcp.Required(), mcp.Description("升级单ID")),
		),
		handleFwhQuerySystemUpdateLogDetail,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_ahub_update_log",
			mcp.WithDescription("查询aHub升级记录（FWH Pro API）"),
			mcp.WithString("sn", mcp.Required(), mcp.Description("站点SN")),
		),
		handleFwhQueryAHubUpdateLog,
	)

	// TOU模板
	s.AddTool(
		mcp.NewTool("data_fwh_query_tou_template_list",
			mcp.WithDescription("查询TOU模板列表（FWH Pro API）"),
			mcp.WithString("search", mcp.Description("搜索关键字")),
			mcp.WithNumber("page", mcp.Description("页码，默认1")),
			mcp.WithNumber("size", mcp.Description("每页数量，默认20")),
		),
		handleFwhQueryTouTemplateList,
	)

	s.AddTool(
		mcp.NewTool("data_fwh_query_tou_template_detail",
			mcp.WithDescription("查询TOU模板详情（FWH Pro API）"),
			mcp.WithString("id", mcp.Required(), mcp.Description("模板ID")),
		),
		handleFwhQueryTouTemplateDetail,
	)
}

// === Handlers ===

func handleFwhQuerySiteBaseInfoList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn := req.GetString("sn", "")
	page := uint(req.GetFloat("page", 1))
	size := uint(req.GetFloat("size", 20))

	para := dto.SiteBaseInfoPara{
		PageNum:  page,
		PageSize: size,
	}
	if sn != "" {
		snList := strings.Split(sn, ",")
		para.SiteList = snList
	}

	data, err := repositories.QuerySiteBaseInfoList(para)
	if err != nil {
		return helper.ServiceError("查询站点基本信息列表", err), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQuerySiteList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn := req.GetString("sn", "")
	page := uint(req.GetFloat("page", 1))
	size := uint(req.GetFloat("size", 20))

	para := dto.SiteInfoPara{
		PageNum:  page,
		PageSize: size,
	}
	if sn != "" {
		para.SN = &sn
	}

	data, err := repositories.QuerySiteInfoList(para)
	if err != nil {
		return helper.ServiceError("查询站点列表", err), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQuerySiteModeInfo(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}

	data, err := repositories.QuerySiteModeInfo(sn)
	if err != nil {
		return helper.ServiceError("查询站点工作模式", err), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQuerySitePowerFlow(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}
	dateStr, err := req.RequireString("date")
	if err != nil {
		return helper.ParamError("date"), nil
	}

	day, err := time.Parse("2006-01-02", dateStr)
	if err != nil {
		return helper.ParamInvalidError("date", fmt.Sprintf("需要 yyyy-MM-dd 格式: %v", err)), nil
	}

	data, err := repositories.QuerySitePowerFlow(sn, day)
	if err != nil {
		return helper.ServiceError("查询功率流", err), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQuerySiteAlarmList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}

	data, err := repositories.QuerySiteAlarmList(sn)
	if err != nil {
		return helper.ServiceError("查询站点告警列表", err), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryEventAlarmList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}
	startTimeStr, err := req.RequireString("start_time")
	if err != nil {
		return helper.ParamError("start_time"), nil
	}
	endTimeStr, err := req.RequireString("end_time")
	if err != nil {
		return helper.ParamError("end_time"), nil
	}

	startTime, err := time.Parse(time.DateTime, startTimeStr)
	if err != nil {
		return helper.ParamInvalidError("start_time", fmt.Sprintf("需要 yyyy-MM-dd HH:mm:ss 格式: %v", err)), nil
	}
	endTime, err := time.Parse(time.DateTime, endTimeStr)
	if err != nil {
		return helper.ParamInvalidError("end_time", fmt.Sprintf("需要 yyyy-MM-dd HH:mm:ss 格式: %v", err)), nil
	}

	typeStr := req.GetString("type", "all")
	var eventAlarmType repositories.EventAlarmType
	switch typeStr {
	case "event":
		eventAlarmType = repositories.Event
	case "alarm":
		eventAlarmType = repositories.Alarm
	default:
		eventAlarmType = repositories.EventAndAlarm
	}

	data, err := repositories.QueryEventOrAlarmListOnTimeRange(sn, startTime, endTime, eventAlarmType)
	if err != nil {
		return helper.ServiceError("查询事件告警日志", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("查询结果为空"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryAlarmSnapshot(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}
	dateStr, err := req.RequireString("date")
	if err != nil {
		return helper.ParamError("date"), nil
	}

	// 验证日期格式
	if _, err := time.Parse("2006-01-02", dateStr); err != nil {
		return helper.ParamInvalidError("date", fmt.Sprintf("需要 yyyy-MM-dd 格式: %v", err)), nil
	}

	data, err := repositories.QueryAlarmSnapshotInfo(sn, dateStr)
	if err != nil {
		return helper.ServiceError("查询告警快照", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("查询结果为空"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryAlarmStatistics(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	country := domain.CountryType(int(req.GetFloat("country", 0)))
	page := int(req.GetFloat("page", 1))

	data, err := repositories.QueryAlarmStatistics(country, page)
	if err != nil {
		return helper.ServiceError("查询实时告警统计", err), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryAlarmStatisticsFromCode(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	alarmCode, err := req.RequireString("alarm_code")
	if err != nil {
		return helper.ParamError("alarm_code"), nil
	}
	country := domain.CountryType(int(req.GetFloat("country", 0)))
	page := int(req.GetFloat("page", 1))

	data, err := repositories.QueryAlarmStatisticsFromCode(country, alarmCode, page)
	if err != nil {
		return helper.ServiceError("查询告警码统计", err), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryMqttLogList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}
	cmdType, err := req.RequireString("cmd_type")
	if err != nil {
		return helper.ParamError("cmd_type"), nil
	}
	startTimeStr, err := req.RequireString("start_time")
	if err != nil {
		return helper.ParamError("start_time"), nil
	}
	endTimeStr, err := req.RequireString("end_time")
	if err != nil {
		return helper.ParamError("end_time"), nil
	}

	startTime, err := time.Parse(time.DateTime, startTimeStr)
	if err != nil {
		return helper.ParamInvalidError("start_time", fmt.Sprintf("需要 yyyy-MM-dd HH:mm:ss 格式: %v", err)), nil
	}
	endTime, err := time.Parse(time.DateTime, endTimeStr)
	if err != nil {
		return helper.ParamInvalidError("end_time", fmt.Sprintf("需要 yyyy-MM-dd HH:mm:ss 格式: %v", err)), nil
	}

	data, err := repositories.QueryMqttLogListOnTimeRange(sn, domain.MqttCmdType(cmdType), startTime, endTime)
	if err != nil {
		return helper.ServiceError("查询MQTT日志", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("查询结果为空"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryShutdownList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	dateStr, err := req.RequireString("date")
	if err != nil {
		return helper.ParamError("date"), nil
	}
	country := int(req.GetFloat("country", 0))

	// 验证日期格式
	if _, err := time.Parse("2006-01-02", dateStr); err != nil {
		return helper.ParamInvalidError("date", fmt.Sprintf("需要 yyyy-MM-dd 格式: %v", err)), nil
	}

	data, err := repositories.QuerySiteShutdownList(dateStr, country)
	if err != nil {
		return helper.ServiceError("查询停机列表", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("查询结果为空"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryEmsLogRecord(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}

	// 使用空日期和0类型查询所有记录
	data, err := repositories.QueryEmsLogCallRecord(sn, "", 0)
	if err != nil {
		// 如果是"没有召唤日志"的错误，返回空结果
		return helper.EmptyResult(fmt.Sprintf("未找到EMS日志记录: %v", err)), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryFaultRecordList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}
	startTimeStr, err := req.RequireString("start_time")
	if err != nil {
		return helper.ParamError("start_time"), nil
	}
	endTimeStr, err := req.RequireString("end_time")
	if err != nil {
		return helper.ParamError("end_time"), nil
	}

	data, err := repositories.QueryFaultRecordList(sn, startTimeStr, endTimeStr)
	if err != nil {
		return helper.ServiceError("查询故障录波列表", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("查询结果为空"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryFaultRecordCallableList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}
	devType := int(req.GetFloat("dev_type", 1))

	data, err := repositories.QueryFaultRecordCallableList(devType, sn)
	if err != nil {
		return helper.ServiceError("查询可召唤故障录波列表", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("无可召唤的故障录波数据"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryFaultRecordCallRecordList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	data, err := repositories.QueryFaultRecordCallRecordList()
	if err != nil {
		return helper.ServiceError("查询故障录波召唤记录", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("查询结果为空"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryFaultRecordSubList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	faultIdStr, err := req.RequireString("fault_id")
	if err != nil {
		return helper.ParamError("fault_id"), nil
	}

	faultId, err := strconv.ParseInt(faultIdStr, 10, 64)
	if err != nil {
		return helper.ParamInvalidError("fault_id", "必须是数字"), nil
	}

	data, err := repositories.QueryFaultRecordSubList(faultId)
	if err != nil {
		return helper.ServiceError("查询故障录波子记录", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("查询结果为空"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQuerySystemUpdateLog(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}

	data, err := repositories.QuerySystemUpdateLog(sn)
	if err != nil {
		return helper.ServiceError("查询系统升级记录", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("查询结果为空"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQuerySystemUpdateLogDetail(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	orderIdStr, err := req.RequireString("order_id")
	if err != nil {
		return helper.ParamError("order_id"), nil
	}

	orderId, err := strconv.ParseInt(orderIdStr, 10, 64)
	if err != nil {
		return helper.ParamInvalidError("order_id", "必须是数字"), nil
	}

	data, err := repositories.QuerySystemUpdateLogDetail(orderId)
	if err != nil {
		return helper.ServiceError("查询升级详情", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("查询结果为空"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryAHubUpdateLog(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	sn, err := req.RequireString("sn")
	if err != nil {
		return helper.ParamError("sn"), nil
	}

	data, err := repositories.QueryAHubUpdateLog(sn)
	if err != nil {
		return helper.ServiceError("查询aHub升级记录", err), nil
	}

	if len(data) == 0 {
		return helper.EmptyResult("查询结果为空"), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryTouTemplateList(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	search := req.GetString("search", "")
	page := uint(req.GetFloat("page", 1))
	size := uint(req.GetFloat("size", 20))

	data, err := repositories.QueryTouTemplateInfoList(search, size, page, nil, nil)
	if err != nil {
		return helper.ServiceError("查询TOU模板列表", err), nil
	}
	return helper.JSONResult(data), nil
}

func handleFwhQueryTouTemplateDetail(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	idStr, err := req.RequireString("id")
	if err != nil {
		return helper.ParamError("id"), nil
	}

	id, err := strconv.ParseUint(idStr, 10, 64)
	if err != nil {
		return helper.ParamInvalidError("id", "必须是数字"), nil
	}

	data, err := repositories.QueryTouTemplateDetailInfo(uint(id))
	if err != nil {
		return helper.ServiceError("查询TOU模板详情", err), nil
	}
	if data == nil {
		return helper.EmptyResult("模板不存在"), nil
	}
	return helper.JSONResult(data), nil
}