//
//  BloodPressureViewModels.swift
//  FireBoltt
//
//  Created by Sheldon on 2021/9/22.
//  Copyright © 2021 Sheldon. All rights reserved.
//

import UIKit

class BloodPressureViewModels: ViewModel {

    // 图表数据
    lazy var relay: BehaviorRelay<ChartViewModel> = {
        return BehaviorRelay<ChartViewModel>(value: defaultVM)
    }()
    // 底部数据
    let formRealy = BehaviorRelay<HealthFormModel?>(value: nil)
    // 默认数据
    private lazy var defaultVM: ChartViewModel = {
        let chartViewModel: ChartViewModel = ChartViewModel(leftIcon: nil, title: nil, legends: nil, source: [], chartType: .gradentFill, maxAxis: 0, xAxis: [], lineColor: kHexColor(0xED6565), isContinuous: false, isShowMeasureLine: false)
        return chartViewModel
    }()
    /// 当前时间(默认当前)
    private var currenTimeStr = DateClass.getCurrentTimeStr(formatStr: "yyyy-MM-dd")
    private var queryType: DataQueryType = .day
    
    override init() {
        super.init()
        // 默认加载当天
        loadData(timeStr: currenTimeStr, queryType: queryType)
    }
    
    // 数据
    func loadData(timeStr: String?, queryType: DataQueryType?) {
        // 无查询类型默认为上一次查询类型
        let tempQueryType = queryType == nil ? self.queryType : queryType!
        self.queryType = tempQueryType
        // 查询时间戳
        let tempTimeStr = timeStr == nil ? currenTimeStr : timeStr!
        currenTimeStr = tempTimeStr
        DataBaseManagerFireBoltt.shared.fbqueryBloodPressureData(dataDate: tempTimeStr, queryType: tempQueryType) { [weak self] (results) in
            guard let `self` = self else { return }
            guard let bpModelArr = results as? [BloodPressureModel], bpModelArr.count > 0 else {
                self.relay.accept(self.defaultVM)
                self.formRealy.accept(nil)
                return
            }
            // 拼接数据模型
            var chartViewModel: ChartViewModel!
            var formModel: HealthFormModel?
            switch tempQueryType {
            case .day:
                let bpModel = bpModelArr.first!
                if bpModel.dbpMin == 0 {
                    self.relay.accept(self.defaultVM)
                    self.formRealy.accept(nil)
                    return
                }
                // 测试数据
//                bpModel.details = "118|69|1685158772,125|75|1685159372,115|67|1685169372"
                let sources = self.getFilterDatas(bpModel:bpModel)
                let maxAxis = sources.map{ $0.value }.max()
                chartViewModel = ChartViewModel(leftIcon: nil, title: nil, legends: nil, source: sources, chartType: .polyline, maxAxis: maxAxis, xAxis:  ["00:00", "06:00", "12:00", "18:00", "24:00"], lineColor: kHexColor(0xED6565), isContinuous: false, isShowMeasureLine: false)
                chartViewModel.points = sources.count
                // 底部数据总和
                formModel = HealthFormModel(oneValue: String(bpModel.sbpAvg), twoValue: String(bpModel.dbpAvg), threeValue: String(bpModel.sbpMax), fourValue: String(bpModel.dbpMax))
                break
            case .week:
                // 获取一周时间戳数组
                let weeks = (0...6).map { DateClass.dateStringOffset(from: tempTimeStr, offset: $0) }
                var sources: [ChartViewData] = []
                var maxAxis = 0
                var maxSBP = 0
                var maxDBP = 0
                var totalAvgDBP = 0
                var totalAvgSBP = 0
                var xAxis: [String] = []
                // 过滤无效数据
                let sortBpModelArr = bpModelArr.filter { $0.dbpMin != 0 }
                // 边里匹配对应日期数据数组
                for dataDate in weeks {
                    let showDate = DateClass.getTimeStrToDate(formatStr: "yyyy-MM-dd", timeStr: dataDate).tranFormDateStr(format: "MM/dd")
                    xAxis.append(showDate)
                    var isMatch = false
                    for bpModel in bpModelArr {
                        if dataDate == bpModel.dataDate {
                            isMatch = true
                            if bpModel.sbpAvg > maxAxis {
                                maxAxis = bpModel.sbpAvg
                            }
                            if bpModel.sbpMax > maxSBP {
                                maxSBP = bpModel.sbpMax
                            }
                            if bpModel.dbpMax > maxDBP {
                                maxDBP = bpModel.dbpMax
                            }
                            totalAvgDBP += bpModel.dbpAvg
                            totalAvgSBP += bpModel.sbpAvg
                            sources.append(ChartViewData(date: nil, value: bpModel.sbpAvg, value2: bpModel.dbpAvg))
                            break
                        }
                    }
                    // 添加空数据
                    if !isMatch {
                        sources.append(ChartViewData(date: nil, value: 0, value2: 0))
                    }
                }
                totalAvgDBP = totalAvgDBP / sortBpModelArr.count
                totalAvgSBP = totalAvgSBP / sortBpModelArr.count
                chartViewModel = ChartViewModel(leftIcon: nil, title: nil, legends: nil, source: sources, chartType: .polyline, maxAxis: maxAxis, xAxis: xAxis, lineColor: kHexColor(0xED6565), isContinuous: false, isShowMeasureLine: false)
                chartViewModel.points = sources.count
                // 底部数据总和
                formModel = HealthFormModel(oneValue: String(totalAvgSBP), twoValue: String(totalAvgDBP), threeValue: String(maxSBP), fourValue: String(maxDBP))
                break
            case .month:
                // 获取一个月时间戳数组
                let selectDate = DateClass.getTimeStrToDate(formatStr: "yyyy-MM-dd", timeStr: tempTimeStr)
                let monthSatrtDate = selectDate.startOfCurrentMonth().tranFormDateStr(format: "yyyy-MM-dd")
                let monthRange = selectDate.getMonthHowManyDay()
                let months = monthRange.map { DateClass.dateStringOffset(from: monthSatrtDate, offset: $0 - 1) }
                var sources: [ChartViewData] = []
                var maxAxis = 0
                var maxSBP = 0
                var maxDBP = 0
                var totalAvgDBP = 0
                var totalAvgSBP = 0
                var xAxis: [String] = []
                // 过滤无效数据
                let sortBpModelArr = bpModelArr.filter { $0.dbpMin != 0 }
                // 边里匹配对应日期数据数组
                for (offset, dataDate) in months.enumerated() {
                    // 只展示每周的
                    if offset == 0 || offset == months.count - 1 || offset == (months.count / 2) {
                        let showDate = DateClass.getTimeStrToDate(formatStr: "yyyy-MM-dd", timeStr: dataDate).tranFormDateStr(format: "dd")
                        xAxis.append(showDate)
                    }
                    var isMatch = false
                    for bpModel in bpModelArr {
                        if dataDate == bpModel.dataDate {
                            isMatch = true
                            if bpModel.sbpAvg > maxAxis {
                                maxAxis = bpModel.sbpAvg
                            }
                            if bpModel.sbpMax > maxSBP {
                                maxSBP = bpModel.sbpMax
                            }
                            if bpModel.dbpMax > maxDBP {
                                maxDBP = bpModel.dbpMax
                            }
                            totalAvgDBP += bpModel.dbpAvg
                            totalAvgSBP += bpModel.sbpAvg
                            sources.append(ChartViewData(date: nil, value: bpModel.sbpAvg, value2: bpModel.dbpAvg))
                            break
                        }
                    }
                    // 添加空数据
                    if !isMatch {
                        sources.append(ChartViewData(date: nil, value: 0, value2: 0))
                    }
                }
                totalAvgDBP = totalAvgDBP / sortBpModelArr.count
                totalAvgSBP = totalAvgSBP / sortBpModelArr.count
                chartViewModel = ChartViewModel(leftIcon: nil, title: nil, legends: nil, source: sources, chartType: .polyline, maxAxis: maxAxis, xAxis: xAxis, lineColor: kHexColor(0xED6565), isContinuous: false, isShowMeasureLine: false)
                chartViewModel.points = sources.count
                // 底部数据总和
                formModel = HealthFormModel(oneValue: String(totalAvgSBP), twoValue: String(totalAvgDBP), threeValue: String(maxSBP), fourValue: String(maxDBP))
                break
            default:
                self.relay.accept(self.defaultVM)
                self.formRealy.accept(nil)
                return
            }
            // 更新数据
            self.relay.accept(chartViewModel)
            self.formRealy.accept(formModel)
        }
    }
    
    // 解析日数据详情
    func getFilterDatas(bpModel:BloodPressureModel) -> [ChartViewData] {
        var bpsArr: [String] = []
        for _ in 0..<144 {
            bpsArr.append("0|0")
        }
        // 血压详情 144条 (SBP|DBP,...)
        let bps: [String] = bpModel.details.components(separatedBy: ",").map { $0 }
        let startTimeStamp = DateClass.timeStrToTimestamp(bpModel.dataDate, formatStr: "yyyy-MM-dd")
        for detail in bps {
            let comps = detail.components(separatedBy: "|")
            if comps.count == 3 {
                let timeStamp = (comps[2] as NSString).integerValue
                let index = (timeStamp - startTimeStamp)/600
                // 添加下标非0判断，避免崩溃
                if index >= 0 {
                    bpsArr[index] = comps[0] + "|" + comps[1]
                }
            }
        }
        let chartDatas = bpsArr.map{ data -> ChartViewData in
            let comps = data.components(separatedBy: "|")
            return ChartViewData(date: nil, value: comps[0].integerValue, value2: comps[1].integerValue)
        }
        return chartDatas
    }
}