<?php

namespace App\Helpers;

use App\Models\Activity;
use App\Models\Project;
use App\Models\VersionGantt;
use Illuminate\Support\Facades\DB;

class MasterFunctionsHelper {

	public static function curlReq($url, $token = ""){
		if(!$token)
			$token = config('api.adw_token');

		$ch = curl_init();

		curl_setopt($ch, CURLOPT_URL, $url);
		$headers = [
			'Authorization: '.$token
		];

		curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
		curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($ch, CURLOPT_VERBOSE, true);
		curl_setopt($ch, CURLOPT_STDERR, fopen('php://stderr', 'w'));

		$output = curl_exec($ch);
		curl_close($ch);

		return json_decode($output);
	}

	public function getLatestGantt($id){
		$maxGanttId = VersionGantt::where("proyek_id", $id)->max("id");
        $data = array(
            "last_gantt_id" => $maxGanttId,
            "proyek_id" => $id
        );
        return $data;
	}

	// dipake di dashboard project & bod
	public function getSCurve($request){
		$allGantt  = [];
		if(!is_int($request)){
			$dataPayload = $request->all();
			if(isset($dataPayload['gantt_id'])){
				$allGantt  = $dataPayload['gantt_id'];
			}else{
				$allGantt[] = MasterFunctionsHelper::getLatestGantt($dataPayload['project_id']);
			}
		} else {
			$allGantt[] = MasterFunctionsHelper::getLatestGantt($request);
		}
		foreach($allGantt as $gantt){
			$gantt = VersionGantt::where('id', $gantt['last_gantt_id'])->first()->toArray();
			if($gantt['calculation_type'] == 'simple') {
				// to do
				return MasterFunctionsHelper::calculateProgressBasedOnSimple($gantt);
			} else {
				return MasterFunctionsHelper::calculateProgressBasedOnReportMaterial($gantt);
			}
		}
	}

	public function calculateProgressBasedOnReportMaterial($keyGantt)
	{
		DB::enableQueryLog();

		$dataFinal=[];
		$dataPayload = [];
		$dataPayload['period'] = 'week';

		$dataProject = Project::find($keyGantt['proyek_id']);
		$dataHeader = Activity::where('type_activity', 'header')->where("proyek_id", $keyGantt['proyek_id'])->where("version_gantt_id", $keyGantt['id'])->first();
		if(isset($dataPayload['end_date']) && $dataPayload['end_date'] > $dataProject->akhir_proyek){
			$dataPayload['end_date'] = $dataProject->akhir_proyek;
		}

		if($dataHeader){
			$totalRencanaBudget = Activity::where('parent_id', $dataHeader->id)->where("proyek_id", $keyGantt['proyek_id'])->where("version_gantt_id", $keyGantt['id'])->sum("rencana_biaya");
		}else{
			$totalRencanaBudget = Activity::whereNull('parent_id')->where("proyek_id", $keyGantt['proyek_id'])->where("version_gantt_id", $keyGantt['id'])->sum("rencana_biaya");
		}

		if(!Activity::where("version_gantt_id", $keyGantt['id'])->first())
			return $dataFinal;

		$alreadyHasReport = DB::table('report_activity_material as a')
			->select('a.id')
			->join('m_activity as b', 'b.id', '=', 'a.activity_id')
			->where('b.version_gantt_id', '=', $keyGantt['id'])
			->exists();

		if(!$alreadyHasReport)
			return $dataFinal;

		$minDate = Activity::where('version_gantt_id', $keyGantt['id'])->whereNull('parent_id')->pluck('start_date')->first();

		$begin = new \DateTime($minDate.' Monday');
		if(isset($dataPayload['end_date'])){
			$maxDate = $dataPayload['end_date'];
			$end = new \DateTime($maxDate);
			/* $interval = \DateInterval::createFromDateString('1 day'); */ // should be using this but its bugged
				$interval = new \DateInterval('P7D');
		} else {
			$maxDate = DB::table('assign_material_to_activity as ama')
				->where("ama.proyek_id", $keyGantt['proyek_id'])
				->join('m_activity as a', 'a.id', '=', 'ama.activity_id')
				->where('a.version_gantt_id', '=', $keyGantt['id'])
				->max("plan_date"); // plan date overlapped with assign_material_to_activity's, it should be m_activity's
			$end = new \DateTime($maxDate. ' Friday');
			$interval = new \DateInterval('P7D');
		}
		$period = new \DatePeriod($begin, $interval, $end);

		$arr_ActualM = [];
		$tempDate = [];
		$tempPercentagePlan = [];
		$tempPercentagePlanWhr = [];
		$tempPercentageReal = [];
		$tempTtlPercentPlan=0;
		$tempTtlPercentActual=0;

		$currentACWP = 0;
		$currentBCWP = 0;

		foreach ($period as $dt) {
			$minSevenDays = new \Datetime($dt->format("Y-m-d"));
			$minSevenDays = $minSevenDays->modify('-7 day')->format("Y-m-d");
			$dataPlanM = DB::table('assign_material_to_activity as ama')
				->select('ama.activity_id', 'ama.qty_planning', 'ama.plan_date', 'ama.start_activity', 'a.bobot_planning', 'a.biaya_actual', 'a.duration', 'a.persentase_progress')
				->join('m_activity as a', 'a.id', '=', 'ama.activity_id')
				->where('ama.proyek_id', '=', $keyGantt['proyek_id'])
				->where('a.version_gantt_id', '=', $keyGantt['id'])
				->whereDate('ama.plan_date', '<=',$dt->format("Y-m-d"))
				->whereDate('ama.plan_date', '>', $minSevenDays)
				->get();
			$dataActualM = DB::table('report_activity_material as ram')
				->select('ram.activity_id', 'ram.qty', 'ram.report_date', 'a.bobot_planning', 'a.biaya_actual', 'a.duration', 'a.persentase_progress')
				->join('m_activity as a', 'a.id', '=', 'ram.activity_id')
				->where('a.version_gantt_id', '=', $keyGantt['id'])
				->where('a.proyek_id', '=', $keyGantt['proyek_id'])
				->whereDate('ram.report_date', '<=',$dt->format("Y-m-d"))
				->whereDate('ram.report_date', '>',$minSevenDays)
				->get();
			$dataTempPlan = [];
			$x = 0;
			$sumPercentagePlan=0;
			$totalACWP = isset($totalACWP) ? $totalACWP : 0;
			$totalBCWP = isset($totalBCWP) ? $totalBCWP : 0;

			foreach ($dataPlanM as $keyPlanM) {
				$sumVolPlan = DB::table('assign_material_to_activity')
					->select('activity_id', DB::raw('SUM(qty_planning) as ttl_qty_plan'))
					->where('activity_id', '=', $keyPlanM->activity_id)
					->groupBy('activity_id')
					->first();
				$dataTempPlan [$x]['activity_id'] = $keyPlanM->activity_id;
				$dataTempPlan [$x]['qty_plan'] = $keyPlanM->qty_planning;
				$dataTempPlan [$x]['plan_date'] = $keyPlanM->plan_date;
				$dataTempPlan [$x]['start_activity'] = $keyPlanM->start_activity;
				$dataTempPlan [$x]['bobot_planning'] = $keyPlanM->bobot_planning;
				$dataTempPlan [$x]['ttl_plan'] = $sumVolPlan->ttl_qty_plan;
				$dataTempPlan [$x]['biaya_actual'] = $keyPlanM->biaya_actual;
				$dataTempPlan [$x]['duration'] = $keyPlanM->duration;
				$dataTempPlan [$x]['persentase_progress'] = $keyPlanM->persentase_progress;
				try {
					$dataTempPlan [$x]['percentage'] = ($keyPlanM->qty_planning/$sumVolPlan->ttl_qty_plan)*$keyPlanM->bobot_planning;
					$sumPercentagePlan+=($keyPlanM->qty_planning/$sumVolPlan->ttl_qty_plan)*$keyPlanM->bobot_planning;
					$totalBCWP += (((($keyPlanM->persentase_progress*$keyPlanM->bobot_planning)/100)/$keyPlanM->duration)* $totalRencanaBudget)/100;
					$dataTempPlan [$x]['totalBCWP'] = $totalBCWP;
				} catch (\DivisionByZeroError $e) {
					return response()->json(['message' => $e->getMessage()]);
				}
				$x++;
			}

			$w = 0;
			$dataTempReport = [];
			$sumPercentageActual=0;
			foreach ($dataActualM as $keyActualM) {
				$sumVolActual = DB::table('assign_material_to_activity')
					->select('activity_id', DB::raw('SUM(qty_planning) as ttl_qty_plan'))
					->where('activity_id', '=', $keyActualM->activity_id)
					->groupBy('activity_id')
					->first();
				$dataTempReport [$w]['activity_id'] = $keyActualM->activity_id;
				$dataTempReport [$w]['qty'] = $keyActualM->qty;
				$dataTempReport [$w]['report_date'] = $keyActualM->report_date;
				$dataTempReport [$w]['bobot_planning'] = $keyActualM->bobot_planning;
				$dataTempReport [$w]['ttl_plan'] = $sumVolActual->ttl_qty_plan;
				$dataTempReport [$w]['biaya_actual'] = $keyActualM->biaya_actual;
				$dataTempReport [$w]['duration'] = $keyActualM->duration;
				$dataTempReport [$w]['persentase_progress'] = $keyActualM->persentase_progress;
				try {
					$dataTempReport [$w]['percentage'] = ($keyActualM->qty/$sumVolActual->ttl_qty_plan)*$keyActualM->bobot_planning;
					$sumPercentageActual+=($keyActualM->qty/$sumVolActual->ttl_qty_plan)*$keyActualM->bobot_planning;
					$totalACWP += $keyActualM->biaya_actual/$keyActualM->duration;
				} catch (\DivisionByZeroError $e) {
					return response()->json(['message' => $e->getMessage()]);
				}
				$dataTempReport [$w]['totalacwp'] = $totalACWP;
				$w++;
			}

			$arr_ActualM[] = array(
				'date'=>$dt->format("Y-m-d"),
				'percentPlan'=>$sumPercentagePlan,
				'percentActual'=>$sumPercentageActual,
				'plan'=>$dataTempPlan,
				'actual'=>$dataTempReport,
			);
			if(isset($dataPayload['period']) && $dataPayload['period'] == 'week'){
				$tempTtlPercentPlan+= $sumPercentagePlan;
				$tempTtlPercentActual+= $sumPercentageActual;

				if($tempTtlPercentPlan >= 100 || $tempTtlPercentActual >= 100){
					if($tempTtlPercentActual >= 100)
						$tempTtlPercentActual = 100;
					if($tempTtlPercentPlan >= 100)
						$tempTtlPercentPlan = 100;
				}

				$currentACWP += $totalACWP;
				$currentBCWP += $totalBCWP;

				$tempPercentage[] = array(round($tempTtlPercentPlan,2), round($tempTtlPercentActual,2));
				$tempPercentagePlan[] = round($tempTtlPercentPlan, 2);
				$tempPercentagePlanWhr[] = ["weekly period", $tempPercentagePlan];
				$tempPercentageReal[] = round($tempTtlPercentActual, 2);
				if($tempTtlPercentPlan >= 100 && $tempTtlPercentActual >= 100){
					break;
				}
			}else{
				$tempPercentage[] = array(round($sumPercentagePlan,2), round($sumPercentageActual,2));
				$tempPercentagePlan[] = round($sumPercentagePlan, 2);
				$tempPercentageReal[] = round($sumPercentageActual, 2);
			}
			$tempDate[] = array($dt->format("Y-m-d"));
		}

		try {
			if(round($totalACWP,0) > $totalRencanaBudget){
				$estimatedCost = round($totalACWP,0)+0;
			}else{
				$estimatedCost = ($totalRencanaBudget+0);
			}
		} catch (\DivisionByZeroError $e) {
			return response()->json([
				'message' => $e->getMessage(),
				"line" => 566,
				'gantt' => $keyGantt,
			]);
		}
		$estimatedCost = $totalACWP > $totalRencanaBudget ? $totalACWP : $totalRencanaBudget;

		$costDeviation = $totalRencanaBudget - $estimatedCost;
		if($costDeviation > 0){
			$potential = "SAVING";
		} else {
			$potential = $costDeviation == 0 ? "ON BUDGET" : "OVERRUN";
		}

		$dataResponse = array(
			"date"              =>$tempDate,
			"percentage"        =>$tempPercentage,
			"percentagePlan"        => $tempPercentagePlan,
			"percentageReal"        => $tempPercentageReal,
			"data_details"      =>$arr_ActualM,
			"budget_control"    =>array("current_budget"=> $totalRencanaBudget,
			"acwp" => round($totalACWP,0),
			"bcwp" => round($totalBCWP,0),
			"rem_to_complete" => ($totalRencanaBudget - round($totalACWP,0)),
			"add_cost_to_complete" => 0,
			"estimated_at_completion" => $estimatedCost,
			"cost_deviation" => $costDeviation,
			"potential" => $potential,
			)
		);

		$dataFinal[] = array(
			"proyek_name"=> $dataProject->nama,
			"data"=>$dataResponse,
			"gantt"=>$keyGantt
		);

		return $dataFinal;
	}

	public function calculateProgressBasedOnSimple($keyGantt){
		DB::enableQueryLog();

		$dataFinal=[];
		$dataPayload = [];
		$dataPayload['period'] = 'week';

		$dataProject = Project::find($keyGantt['proyek_id']);
		$dataHeader = Activity::where('type_activity', 'header')->where("proyek_id", $keyGantt['proyek_id'])->where("version_gantt_id", $keyGantt['id'])->first();
		if(isset($dataPayload['end_date']) && $dataPayload['end_date'] > $dataProject->akhir_proyek){
			$dataPayload['end_date'] = $dataProject->akhir_proyek;
		}

		if($dataHeader){
			$totalRencanaBudget = Activity::where('parent_id', $dataHeader->id)->where("proyek_id", $keyGantt['proyek_id'])->where("version_gantt_id", $keyGantt['id'])->sum("rencana_biaya");
		}else{
			$totalRencanaBudget = Activity::whereNull('parent_id')->where("proyek_id", $keyGantt['proyek_id'])->where("version_gantt_id", $keyGantt['id'])->sum("rencana_biaya");
		}

		if(!Activity::where("version_gantt_id", $keyGantt['id'])->first())
			return $dataFinal;

		// $alreadyHasReport = DB::table('report_activity_material as a')
		// 	->select('a.id')
		// 	->join('m_activity as b', 'b.id', '=', 'a.activity_id')
		// 	->where('b.version_gantt_id', '=', $keyGantt['id'])
		// 	->exists();

		// if(!$alreadyHasReport)
		// 	return $dataFinal;

		$minDate = Activity::where('version_gantt_id', $keyGantt['id'])->whereNull('parent_id')->pluck('start_date')->first();

		$begin = new \DateTime($minDate.' Monday');
		if(isset($dataPayload['end_date'])){
			$maxDate = $dataPayload['end_date'];
			$end = new \DateTime($maxDate);
			/* $interval = \DateInterval::createFromDateString('1 day'); */ // should be using this but its bugged
				$interval = new \DateInterval('P7D');
		} else {
			// $maxDate = DB::table('assign_material_to_activity as ama')
			// 	->where("ama.proyek_id", $keyGantt['proyek_id'])
			// 	->join('m_activity as a', 'a.id', '=', 'ama.activity_id')
			// 	->where('a.version_gantt_id', '=', $keyGantt['id'])
			// 	->max("plan_date"); // plan date overlapped with assign_material_to_activity's, it should be m_activity's
			$maxDate = Activity::where('version_gantt_id', $keyGantt['id'])->whereNull('parent_id')->pluck('end_date')->first();
			$end = new \DateTime($maxDate. ' Friday');
			$interval = new \DateInterval('P7D');
		}
		$period = new \DatePeriod($begin, $interval, $end);

		$arr_ActualM = [];
		$tempDate = [];
		$tempPercentagePlan = [];
		$tempPercentagePlanWhr = [];
		$tempPercentageReal = [];
		$tempTtlPercentPlan=0;
		$tempTtlPercentActual=0;

		$currentACWP = 0;
		$currentBCWP = 0;

		foreach ($period as $dt) {
			$minSevenDays = new \Datetime($dt->format("Y-m-d"));
			$minSevenDays = $minSevenDays->modify('-7 day')->format("Y-m-d");
			 
			$dataPlanM = DB::table('m_activity')
				->select('id as activity_id', 'bobot_planning', 'start_date', 'biaya_actual', 'duration', 'persentase_progress')
				// ->join('m_activity as a', 'a.id', '=', 'activity_id')
				->where('proyek_id', '=', $keyGantt['proyek_id'])
				->where('type_activity', '=', 'task')
				->where('version_gantt_id', '=', $keyGantt['id'])
				->whereDate('start_date', '<=',$dt->format("Y-m-d"))
				->whereDate('start_date', '>', $minSevenDays)
				->get();
			
			$dataActualM = DB::table('m_activity as a')
				->select('mapl.id as id_progress_log', 'mapl.activity_id', 'mapl.variance', 'mapl.created_at', 'a.bobot_planning', 'a.biaya_actual', 'a.duration', 'a.persentase_progress')
				->join('m_activity_progress_log  as mapl', 'a.id', '=', 'mapl.activity_id')
				->where('a.version_gantt_id', '=', $keyGantt['id'])
				->where('a.type_activity', '=', 'task')
				->where('mapl.variance', '>', 0)
				->where('a.proyek_id', '=', $keyGantt['proyek_id'])
				->whereDate('mapl.created_at', '<=',$dt->format("Y-m-d"))
				->whereDate('mapl.created_at', '>',$minSevenDays)
				->get();
			$dataTempPlan = [];
			$x = 0;
			$sumPercentagePlan=0;
			$totalACWP = isset($totalACWP) ? $totalACWP : 0;
			$totalBCWP = isset($totalBCWP) ? $totalBCWP : 0;

			foreach ($dataPlanM as $keyPlanM) {
				
				$dataTempPlan [$x]['activity_id'] = $keyPlanM->activity_id;
				$dataTempPlan [$x]['qty_plan'] = $keyPlanM->bobot_planning;
				$dataTempPlan [$x]['plan_date'] = $keyPlanM->start_date;
				$dataTempPlan [$x]['start_activity'] = $keyPlanM->start_date;
				$dataTempPlan [$x]['bobot_planning'] = $keyPlanM->bobot_planning;
				$dataTempPlan [$x]['ttl_plan'] = $keyPlanM->bobot_planning;
				$dataTempPlan [$x]['biaya_actual'] = $keyPlanM->biaya_actual;
				$dataTempPlan [$x]['duration'] = $keyPlanM->duration;
				$dataTempPlan [$x]['persentase_progress'] = $keyPlanM->persentase_progress;
				try {
					$dataTempPlan [$x]['percentage'] = $keyPlanM->bobot_planning;
					$sumPercentagePlan+=$keyPlanM->bobot_planning;
					$totalBCWP += 0;
					$dataTempPlan [$x]['totalBCWP'] = $totalBCWP;
				} catch (\DivisionByZeroError $e) {
					return response()->json(['message' => $e->getMessage()]);
				}
				$x++;
			}

			$w = 0;
			$dataTempReport = [];
			$sumPercentageActual=0;
			foreach ($dataActualM as $keyActualM) {
				$sumVolActual = DB::table('m_activity_progress_log')
					->select('id', DB::raw('SUM(variance) as ttl_percen_act'))
					->where('id', '=', $keyActualM->id_progress_log)
					->groupBy('id')
					->first();
				$dataTempReport [$w]['id_progress_log'] = $keyActualM->id_progress_log;
				// $dataTempReport [$w]['qty'] = $keyActualM->qty;
				$dataTempReport [$w]['report_date'] = $keyActualM->created_at;
				$dataTempReport [$w]['bobot_planning'] = $keyActualM->bobot_planning;
				// $dataTempReport [$w]['ttl_plan'] = $sumVolActual->ttl_percen_act ? $sumVolActual->ttl_percen_act : 0;
				$dataTempReport [$w]['biaya_actual'] = $keyActualM->biaya_actual;
				$dataTempReport [$w]['duration'] = $keyActualM->duration;
				$dataTempReport [$w]['persentase_progress'] = $keyActualM->persentase_progress;
				try {
					$dataTempReport [$w]['percentage'] = $sumVolActual->ttl_percen_act ? ($sumVolActual->ttl_percen_act/100)*$keyActualM->bobot_planning : 0;
					$sumPercentageActual+=$sumVolActual->ttl_percen_act ? ($sumVolActual->ttl_percen_act/100)*$keyActualM->bobot_planning : 0;
					$totalACWP += $keyActualM->biaya_actual/$keyActualM->duration;
				} catch (\DivisionByZeroError $e) {
					return response()->json(['message' => $e->getMessage()]);
				}
				$dataTempReport [$w]['totalacwp'] = $totalACWP;
				$w++;
			}

			$arr_ActualM[] = array(
				'date'=>$dt->format("Y-m-d"),
				'percentPlan'=>$sumPercentagePlan,
				'percentActual'=>$sumPercentageActual,
				'plan'=>$dataTempPlan,
				'actual'=>$dataTempReport,
			);
			if(isset($dataPayload['period']) && $dataPayload['period'] == 'week'){
				$tempTtlPercentPlan+= $sumPercentagePlan;
				$tempTtlPercentActual+= $sumPercentageActual;

				if($tempTtlPercentPlan >= 100 || $tempTtlPercentActual >= 100){
					if($tempTtlPercentActual >= 100)
						$tempTtlPercentActual = 100;
					if($tempTtlPercentPlan >= 100)
						$tempTtlPercentPlan = 100;
				}

				$currentACWP += $totalACWP;
				$currentBCWP += $totalBCWP;

				$tempPercentage[] = array(round($tempTtlPercentPlan,2), round($tempTtlPercentActual,2));
				$tempPercentagePlan[] = round($tempTtlPercentPlan, 2);
				$tempPercentagePlanWhr[] = ["weekly period", $tempPercentagePlan];
				$tempPercentageReal[] = round($tempTtlPercentActual, 2);
				if($tempTtlPercentPlan >= 100 && $tempTtlPercentActual >= 100){
					break;
				}
			}else{
				$tempPercentage[] = array(round($sumPercentagePlan,2), round($sumPercentageActual,2));
				$tempPercentagePlan[] = round($sumPercentagePlan, 2);
				$tempPercentageReal[] = round($sumPercentageActual, 2);
			}
			$tempDate[] = array($dt->format("Y-m-d"));
		}

		try {
			if(round($totalACWP,0) > $totalRencanaBudget){
				$estimatedCost = round($totalACWP,0)+0;
			}else{
				$estimatedCost = ($totalRencanaBudget+0);
			}
		} catch (\DivisionByZeroError $e) {
			return response()->json([
				'message' => $e->getMessage(),
				"line" => 566,
				'gantt' => $keyGantt,
			]);
		}
		$estimatedCost = $totalACWP > $totalRencanaBudget ? $totalACWP : $totalRencanaBudget;

		$costDeviation = $totalRencanaBudget - $estimatedCost;
		if($costDeviation > 0){
			$potential = "SAVING";
		} else {
			$potential = $costDeviation == 0 ? "ON BUDGET" : "OVERRUN";
		}

		$dataResponse = array(
			"date"              =>$tempDate,
			"percentage"        =>$tempPercentage,
			"percentagePlan"        => $tempPercentagePlan,
			"percentageReal"        => $tempPercentageReal,
			"data_details"      =>$arr_ActualM,
			"budget_control"    =>array("current_budget"=> $totalRencanaBudget,
			"acwp" => round($totalACWP,0),
			"bcwp" => round($totalBCWP,0),
			"rem_to_complete" => ($totalRencanaBudget - round($totalACWP,0)),
			"add_cost_to_complete" => 0,
			"estimated_at_completion" => $estimatedCost,
			"cost_deviation" => $costDeviation,
			"potential" => $potential,
			)
		);

		$dataFinal[] = array(
			"proyek_name"=> $dataProject->nama, 
			"data"=>$dataResponse,
			"gantt"=>$keyGantt,
		);

		return $dataFinal;
	}

}