<?php

namespace App\Http\Controllers;

use App\Models\Activity;
use App\Models\AssignMaterial;
use App\Models\Divisi;
use App\Models\Project;
use App\Models\ProjectPhase;
use App\Models\ReportActivityMaterial;
use App\Models\User;
use App\Models\UserToVersionGantt;
use App\Models\VersionGantt;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\DB;

class DashboardBoDController extends Controller
{
	private function interpolateYear($year){
		if($year)
			$year = '%'.$year.'%';
		return $year;
	}

	private function curlReq($url, $token){
		$ch = curl_init();
		$headers = [
			'Authorization: '.$token
		];
		curl_setopt($ch, CURLOPT_URL, $url);
		curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

		$response = curl_exec($ch);
		if ($response === false)
			$response = curl_error($ch);
		curl_close($ch);

		return json_decode($response);
	}

	private function getInvoiceIntegration($search) {
		if(empty($search))
			return response()->json(['status'=>'error', 'message'=>'Empty query string!'], 400);

		$url = str_replace("SEARCH", $search, config('api.adw').'/project_cost?project_no=SEARCH');
		$token = config('api.adw_token');
		$response = $this->curlReq($url, $token);

		if(@$response->data->project_no == "")
			return null;

		return $response;
	}

	// to do
	public function getCompanyCashFlow($year = '%') {
		$year = $this->interpolateYear($year);
		$totalExpenditure = $totalInvoice = $totalPaidInvoice = 0;

		// we can't use eloquent's sum() method because someone decided to use varchar as datatype in rencana_biaya field
		$totalBudgets = Project::select(DB::raw('SUM(CAST("rencana_biaya" AS DOUBLE PRECISION))'))
			->where('mulai_proyek', 'like', $year)
		/* ->orWhere('akhir_proyek', 'like', $year) */
			->pluck('sum')
			->first();

		$projects = Project::where('mulai_proyek', 'like', $year)
			/* ->orWhere('akhir_proyek', 'like', $year) */
			->get();
		foreach($projects as $project){
			$project->expenses = 0;

			$resp = null;
			if($project->kode_sortname != ""){
				$resp = $this->getInvoiceIntegration($project->kode_sortname);
				/* $resp = $project->kode_sortname; */
				$cost = $resp->data->total_cost ?? 0;
				$cost = substr($cost, 0, strpos($cost, "."));
				$totalExpenditure+= (int) $cost;
				$totalInvoice += $resp->data->total_invoice_amount ?? 0;
				$totalPaidInvoice += $resp->data->total_invoice_paid_amount ?? 0;
			}

		}

		return response()->json([
			'data' => [
				'total_budget' => (int) $totalBudgets ?? 0,
				'total_expenditure' => $totalExpenditure,
				'total_invoice' => $totalInvoice,
				'total_paid_invoice' => $totalPaidInvoice ,
			]
		], 200);
	}

	public function getInvoiceOutstanding($year = '%'){
		$year = $this->interpolateYear($year);
		$projects = Project::where('mulai_proyek', 'like', $year)
			/* ->orWhere('akhir_proyek', 'like', $year) */
			->get();
		$return = [];
		foreach($projects as $project){
			$resp = null;
			if($project->kode_sortname != ""){
				$resp = $this->getInvoiceIntegration($project->kode_sortname);
				array_push($return, [
					'project' => $project->nama,
					'invoiced' => $resp->data->total_invoice_amount ?? 0,
					'paid' => $resp->data->total_invoice_paid_amount ?? 0,
					'response' => $resp,
				]);
			}
		}

		return response()->json([
			'data' => $return
		], 200);
	}

	public function getTotalProjectPerScheduleHealth($year = '%'){
		$year = $this->interpolateYear($year);

		$return = [
			'behind-schedule' => 0,
			'warning' => 0,
			'on-schedule' => 0,
		];

		$projects = Project::where('mulai_proyek', 'like', $year)->get();
		foreach($projects as $project) {
			$project->scurve = $this->getSCurve($project->id);
			if(@$project->scurve['difference'] > 0 && @$project->scurve['difference'] <= 5)
				$return['warning'] += 1;
			elseif(@$project->scurve['difference'] > 5 && @$project->scurve['difference'] <= 100)
				$return['behind-schedule'] += 1;
			elseif(@$project->scurve['difference'] == 0)
				$return['on-schedule'] += 1;
		}

		return response()->json(['data' => $return], 200);
	}

	public function getTotalProjectScheduleHealthPerDivision($year = '%'){
		$year = $this->interpolateYear($year);

		$divisions = Divisi::whereNull('parent')->get();
		foreach($divisions as $division){

			$scheduleData = new Collection();
			$behindSchedule = $warning = $onSchedule = 0;

			$projects = Project::where('mulai_proyek', 'like', $year)->where('divisi_id', $division->id)->get();
			foreach($projects as $project) {
				$project->scurve = $this->getSCurve($project->id);
				if(@$project->scurve['difference'] > 0 && @$project->scurve['difference'] <= 5)
					$warning++;
				elseif(@$project->scurve['difference'] > 5 && @$project->scurve['difference'] <= 100)
					$behindSchedule++;
				elseif(@$project->scurve['difference'] == 0)
					$onSchedule++;
			}

			$scheduleData->prepend($behindSchedule, 'behindSchedule');
			$scheduleData->prepend($warning, 'warning');
			$scheduleData->prepend($onSchedule, 'onSchedule');
			$division->scheduleData = $scheduleData;
		}
		return response()->json([
			'data' => [
				$divisions
			]
		], 200);
	}

	public function getTotalProjectPerBudgetHealth($year = '%'){
		$year = $this->interpolateYear($year);
		return response()->json([
			'data' => [
				'overrun' => Project::where('mulai_proyek', 'like', $year)->where('budget_health', 'overrun')->count(),
				'warning' => Project::where('mulai_proyek', 'like', $year)->where('budget_health', 'warning')->count(),
				'on-budget' => Project::where('mulai_proyek', 'like', $year)->where('budget_health', 'on-budget')->count(),
			]
		], 200);
	}

	private function countTotalProjectByBudgetHealthInDivision($divisi, $year, $health){
		return Project::where('divisi_id', $divisi)
			->where('mulai_proyek', 'like', $year)
		/* ->orWhere('akhir_proyek', 'like', $year) */
			->where('budget_health', $health)
			->count();
	}


	public function getTotalProjectBudgetHealthPerDivision($year = '%'){
		$year = $this->interpolateYear($year);
		$divisions = Divisi::select('id','name')
			->with('children')
			->whereNull('parent')
			->get();
		// to do : count in more than 1 level child
		foreach($divisions as $division){
			$budgetData = new Collection();
			$budgetData->prepend($this->countTotalProjectByBudgetHealthInDivision($division->id, $year, 'overrun'), 'overrun');
			$budgetData->prepend($this->countTotalProjectByBudgetHealthInDivision($division->id, $year, 'warning'), 'warning');
			$budgetData->prepend($this->countTotalProjectByBudgetHealthInDivision($division->id, $year, 'on-budget'), 'on-budget');
			foreach($division->children as $d){
				$budgetData['overrun'] += $this->countTotalProjectByBudgetHealthInDivision($d->id, $year, 'overrun');
				$budgetData['warning'] += $this->countTotalProjectByBudgetHealthInDivision($d->id, $year, 'warning');
				$budgetData['on-budget'] += $this->countTotalProjectByBudgetHealthInDivision($d->id, $year, 'on-budget');
			}
			unset($division->children);
			$division->budgetData = $budgetData;
		}
		foreach($divisions as $division){
		}
		return response()->json([
			'data' => [
				$divisions
			]
		], 200);
	}

	public function getTotalProjectPerPhase($year = '%'){
		$year = $this->interpolateYear($year);
		$projectPhases = ProjectPhase::orderBy('order')->get();
		foreach($projectPhases as $phase){
			$phase->totalProject = Project::where('phase_id', $phase->id)
		 ->where('mulai_proyek', 'like', $year)
	 /* ->orWhere('akhir_proyek', 'like', $year) */
		 ->count();
		}
		return response()->json([
			'data' => [
				$projectPhases
			]
		], 200);
	}

	private function countTotalProjectInDivision($id, $year){
		return Project::where('divisi_id', $id)
			->where('mulai_proyek', 'like', $year)
		/* ->orWhere('akhir_proyek', 'like', $year) */
			->count();
	}

	public function getTotalProjectPerDivision($year = '%') {
		$year = $this->interpolateYear($year);

		$divisions = Divisi::select('id','name')
			->with('children')
			->whereNull('parent')
			->get();

		// to do : count in more than 1 level child
		foreach($divisions as $v){
			$v->total = $this->countTotalProjectInDivision($v->id, $year);
			foreach($v->children as $d){
				$v->total += $this->countTotalProjectInDivision($d->id, $year);
			}
			unset($v->children);
		}

		return response()->json([
			'data' => $divisions
		], 200);
	}

	private function countTotalProjectValueInDivision($id, $year){
		return Project::select(DB::raw('SUM(CAST("rencana_biaya" AS DOUBLE PRECISION))'))
			->where('mulai_proyek', 'like', $year)
		/* ->orWhere('akhir_proyek', 'like', $year) */
			->where('divisi_id', $id)
			->pluck('sum')
			->first();
	}

	public function getTotalProjectValuePerDivision($year = '%') {
		$year = $this->interpolateYear($year);

		$divisions = Divisi::select('id','name')
			->with('children')
			->whereNull('parent')
			->get();

		// to do : count in more than 1 level child
		foreach($divisions as $v){
			$v->total = $this->countTotalProjectValueInDivision($v->id, $year);
			foreach($v->children as $d){
				$v->total += $this->countTotalProjectValueInDivision($d->id, $year);
			}
			unset($v->children);
		}

		return response()->json([
			'data' => $divisions
		], 200);
	}

	private function getSCurve($project_id)
	{
		DB::enableQueryLog();

		$dataPayload = [
			'project_id' => $project_id,
			'period' => 'week',
		];
		$allGantt[] = $this->getLatestGantt($dataPayload['project_id']);
		$dataResponse=[];

		foreach ($allGantt as $keyGantt) {
			$dataProject = Project::find($keyGantt['proyek_id']);

			$totalRencanaBudget = Activity::whereNull('parent_id')->where("proyek_id", $keyGantt['proyek_id'])->where("version_gantt_id", $keyGantt['last_gantt_id'])->sum("rencana_biaya");

			if(!Activity::where("version_gantt_id", $keyGantt['last_gantt_id'])->first())
				continue;

			$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['last_gantt_id'])
				->exists();

			if(!$alreadyHasReport)
				continue;

			/* $minDate = Activity::where('version_gantt_id', $keyGantt['last_gantt_id'])->min("planned_start"); */
			$minDate = Activity::where('version_gantt_id', $keyGantt['last_gantt_id'])->whereNull('parent_id')->pluck('start_date')->first();

			$begin = new \DateTime($minDate.' Monday');
			$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['last_gantt_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);

			$tempTtlPercentPlan=0;
			$tempTtlPercentActual=0;
			$tempPercentagePlan = [];
			$tempPercentageReal = [];

			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', '=', $keyGantt['last_gantt_id'])
					->whereDate('ama.plan_date', '<=',$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['last_gantt_id'])
					->where('a.proyek_id', '=', $keyGantt['proyek_id'])
					->whereDate('ram.report_date', '<=',$dt->format("Y-m-d"))
					->whereDate('ram.report_date', '>',$minSevenDays)
					->get();
				$sumPercentagePlan=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();
					try {
						$sumPercentagePlan+=($keyPlanM->qty_planning/$sumVolPlan->ttl_qty_plan)*$keyPlanM->bobot_planning;
					} catch (\DivisionByZeroError $e) {
						return response()->json(['message' => $e->getMessage()]);
					}
				}

				$sumPercentageActual=0;
				foreach ($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();
					try {
						$sumPercentageActual+=($keyActualM->qty/$sumVolActual->ttl_qty_plan ?? 0)*$keyActualM->bobot_planning;
					} catch (\DivisionByZeroError $e) {
						return response()->json(['message' => $e->getMessage()]);
					}
				}

				$tempTtlPercentPlan+= $sumPercentagePlan;
				$tempTtlPercentActual+= $sumPercentageActual;

				if($tempTtlPercentPlan >= 100 || $tempTtlPercentActual >= 100){
					if($tempTtlPercentActual >= 100)
						$tempTtlPercentActual = 100;
					if($tempTtlPercentPlan >= 100)
						$tempTtlPercentPlan = 100;
				}


				$tempPercentage[] = array(round($tempTtlPercentPlan,2), round($tempTtlPercentActual,2));
				$tempPercentagePlan[] = round($tempTtlPercentPlan, 2);
				$tempPercentagePlanWhr[] = ["weekly period", $tempPercentagePlan];
				$tempPercentageReal[] = round($tempTtlPercentActual, 2);
				if($tempTtlPercentPlan >= 100 && $tempTtlPercentActual >= 100){
					break;
				}
			}

			$plannedPercentage = end($tempPercentagePlan);
			$progressPercentage = end($tempPercentageReal);
			$difference = $plannedPercentage - $progressPercentage;

			$dataResponse = array(
				'planned' => $plannedPercentage == false ? 0 : $plannedPercentage,
				'progress' => $progressPercentage == false ? 0 : $progressPercentage,
				'difference' => $difference,
			);


		}

		return $dataResponse;
	}

	private function getLatestGantt($id){
		$maxGanttId = VersionGantt::where("proyek_id", $id)->max("id");
		$data = array(
			"last_gantt_id" => $maxGanttId,
			"proyek_id" => $id
		);
		return $data;
	}

	public function getDetailExpenditure($year = '%'){
		$year = $this->interpolateYear($year);
		$projects = Project::where('mulai_proyek', 'like', $year)
			/* ->orWhere('akhir_proyek', 'like', $year) */
			->get();
		foreach($projects as $project){
			$lastGantt = $this->getLatestGantt($project->id);

			if($project->kode_sortname != ""){
				$resp = $this->getInvoiceIntegration($project->kode_sortname);
				$project->invoice = [
					'invoiced' => $resp->data->total_invoice_amount ?? 0,
					'paid' => $resp->data->total_invoice_paid_amount ?? 0,
				];
			}

			$project->pm = User::find($project->pm_id);
			/* $project->header = Activity::where('proyek_id', $project->id)->where('version_gantt_id', $lastGantt['last_gantt_id'])->whereNull('parent_id')->first(); */
			$project->scurve = $this->getSCurve($project->id);
			$project->manPowers = UserToVersionGantt::where('version_gantt_id', $lastGantt['last_gantt_id'])->count();
			$project->lastGanttId = $this->getLatestGantt($project->id);
		}

		return response()->json([
			'data' => $projects,
			'total_manpowers' => User::count()
		], 200);
	}
}