using FrontendWebApi.Models;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using Repository.BackendRepository.Interface;
using Repository.FrontendRepository.Interface;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;

namespace FrontendWebApi.ApiControllers
{
    public class HydroMeterController : MyBaseApiController<HydroMeterController>
    {
        private readonly IBackendRepository backendRepository;
        private readonly IFrontendRepository frontendRepository;

        public HydroMeterController(IBackendRepository backendRepository, IFrontendRepository frontendRepository)
        {
            this.backendRepository = backendRepository;
            this.frontendRepository = frontendRepository;
        }

        /// <summary>
        /// 電表
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost]
        [Route("api/MeterList")]
        public async Task<ActionResult<ApiResult<List<HydroMeterOutput>>>> MeterList([FromBody] HydroMeterInput input)
        {
            ApiResult<List<HydroMeterOutput>> apiResult = new ApiResult<List<HydroMeterOutput>>();
            string tableType = "day week month";
            if (input.building_tag == null)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "棟別沒有被選取";
                return BadRequest(apiResult);
            }
            else if (input.tableType == null || tableType.Contains(input.tableType))
            {
                apiResult.Code = "9999";
                apiResult.Msg = "表單類別錯誤";
                return BadRequest(apiResult);
            }

            try
            {
                string sqlWhere = "";
                if (input.floor_tag != null)
                    sqlWhere = $@" and substring_index(device_number, '_', 3) == @floor_tag";
                var table = "archive_electric_meter_" + input.tableType;
                var dateFormat = input.tableType == "day" || input.tableType == "week" ? "%Y-%m-%d" : input.tableType == "month" ? "%Y-%m" : null;
                var sql = $@"select device_number, avg_rawdata, DATE_FORMAT(start_timestamp, @dateFormat) as timeStamp
                                from @table
                                where start_timestamp >= @startTime and end_timestamp <= @endTime and point = 'KWH' and substring_index(device_number, '_', 1) == @building_tag
                                {sqlWhere}
                                order by created_at desc;";
                var rawData = await backendRepository.GetAllAsync<HydroMeterRawDataOutput>(sql,
                                new { table = table, starTime = input.startTime, endTime = input.endTime, building_tag = input.building_tag, floor_tag = input.floor_tag });
                var list = rawData
                            .GroupBy(x => new { building_tag = x.device_number.Split("_")[0], floor_tag = x.device_number.Split("_")[2], device_serial_tag = x.device_number.Split("_")[4] })
                            .Select(x => new HydroMeterOutput { building_tag = x.Key.building_tag, floor_tag = x.Key.floor_tag, device_serial_tag = x.Key.device_serial_tag })
                            .ToList();

                foreach (var l in list)
                {
                    l.rawData = new List<HydroMeterRawDataOutput>();
                    l.rawData.AddRange(
                        rawData.Where(x => x.device_number.Split("_")[0] == l.building_tag && x.device_number.Split("_")[2] == l.floor_tag && x.device_number.Split("_")[4] == l.device_serial_tag)
                    );
                    l.total = l.rawData.Count.ToString();
                    l.price = (await backendRepository.GetOneAsync<int>("select system_value from variable where system_type = 'MeterPrice' and deleted = 0")).ToString();
                    l.total_price = (l.rawData.Count * Int32.Parse(l.price)).ToString();
                }

                apiResult.Code = "0000";
                apiResult.Data = list;
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                string json = System.Text.Json.JsonSerializer.Serialize(input);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + json);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }
            return apiResult;
        }

        /// <summary>
        /// 水表
        /// </summary>
        /// <param name="input"></param>
        /// <returns></returns>
        [HttpPost]
        [Route("api/WaterList")]
        public async Task<ActionResult<ApiResult<List<HydroMeterOutput>>>> WaterList([FromBody] HydroMeterInput input)
        {
            ApiResult<List<HydroMeterOutput>> apiResult = new ApiResult<List<HydroMeterOutput>>();
            string tableType = "day week month";
            if (input.building_tag == null)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "棟別沒有被選取";
                return BadRequest(apiResult);
            }
            else if (input.tableType == null || tableType.Contains(input.tableType))
            {
                apiResult.Code = "9999";
                apiResult.Msg = "表單類別錯誤";
                return BadRequest(apiResult);
            }

            try
            {
                string sqlWhere = "";
                if (input.floor_tag != null)
                    sqlWhere = $@" and substring_index(device_number, '_', 3) == @floor_tag";
                var table = "archive_water_meter_" + input.tableType;
                var dateFormat = input.tableType == "day" || input.tableType == "week" ? "%Y-%m-%d" : input.tableType == "month" ? "%Y-%m" : null;
                var sql = $@"select device_number, avg_rawdata, DATE_FORMAT(start_timestamp, @dateFormat) as timeStamp
                                from @table
                                where start_timestamp >= @startTime and end_timestamp <= @endTime and point = 'RCV' and substring_index(device_number, '_', 1) == @building_tag
                                {sqlWhere}
                                order by created_at desc;";
                var rawData = await backendRepository.GetAllAsync<HydroMeterRawDataOutput>(sql,
                            new { table = table, starTime = input.startTime, endTime = input.endTime, building_tag = input.building_tag, floor_tag = input.floor_tag, dateFormat = dateFormat });
                var list = rawData
                            .GroupBy(x => new { building_tag = x.device_number.Split("_")[0], floor_tag = x.device_number.Split("_")[2], device_serial_tag = x.device_number.Split("_")[4] })
                            .Select(x => new HydroMeterOutput { building_tag = x.Key.building_tag, floor_tag = x.Key.floor_tag, device_serial_tag = x.Key.device_serial_tag })
                            .ToList();

                foreach (var l in list)
                {
                    l.rawData = new List<HydroMeterRawDataOutput>();
                    l.rawData.AddRange(
                        rawData.Where(x => x.device_number.Split("_")[0] == l.building_tag && x.device_number.Split("_")[2] == l.floor_tag && x.device_number.Split("_")[4] == l.device_serial_tag)
                    );
                    l.total = l.rawData.Count.ToString();
                    l.price = (await backendRepository.GetOneAsync<int>("select system_value from variable where system_type = 'WaterPrice' and deleted = 0")).ToString();
                    l.total_price = (l.rawData.Count * Int32.Parse(l.price)).ToString();
                }

                apiResult.Code = "0000";
                apiResult.Data = list;
            }
            catch (Exception exception)
            {
                apiResult.Code = "9999";
                apiResult.Msg = "系統內部錯誤，請聯絡管理者。";
                string json = System.Text.Json.JsonSerializer.Serialize(input);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + json);
                Logger.LogError("【" + controllerName + "/" + actionName + "】" + exception.Message);
            }
            return apiResult;
        }
    }
}