<?php

namespace App\Models;

use App\Models\AssignMaterial;
use App\Models\ActivityProgressLog;
use App\Models\AssignTools;
use App\Models\ReportActivityMaterial;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Arr;
use Illuminate\Support\Facades\DB;
use Carbon\Carbon;

class Activity extends Model
{
    protected $table = 'm_activity';

    const CREATED_AT = 'created_at';
    const UPDATED_AT = 'updated_at';

	// persentase bobot gak kepake yg dipakenya bobot_planning
    protected $fillable = [
        'proyek_id', 'parent_id', 'kode_sortname', 'name', 'rencana_biaya', 'start_date',
        'end_date', 'area_kerja', 'biaya_actual', 'persentase_bobot', 'persentase_progress',
        'buffer_radius', 'duration', 'color_progress', 'jumlah_pekerjaan', 'satuan',
        'description', 'priority', 'bobot_planning', 'type_activity', 'open', 'geom',
        'version_gantt_id', 'budget_plan', 'biaya_material_plan', 'biaya_human_plan', 'biaya_tools_plan',
        'planned_start', 'planned_end', 'satuan_id',
        'created_at', 'created_by', 'updated_at', 'updated_by'
    ];

	protected $appends = [
		'jobs_done', 'assign_hr', 'assign_material', 'assign_tools', 'assign_expense'
	];


	public function getStartDateAttribute($value)
	{
		return Carbon::createFromTimestamp(strtotime($value))
			->timezone(env('APP_TIMEZONE'))
			->toDateTimeString();
	}

	public function getEndDateAttribute($value)
	{
		return Carbon::createFromTimestamp(strtotime($value))
			->timezone(env('APP_TIMEZONE'))
			->toDateTimeString();
	}


	public static function boot() {
		parent::boot();

		static::updating(function($data) {
			$data->logPersentaseProgress();
		});

		static::updated(function($data) {
			$data->updateBobot();
			$data->updateCostPlanning();
			if($data->bobot_planning){
				$data->updatePersentaseProgress();
				$data->updateCostActual();
			}
			if($this->start_date != request()->start_date || $this->end_date != request()->end_date) {
				$data->updateStartEndDateHeader();
			}
		});

		static::deleted(function($data) {
			if(Activity::where("parent_id", $data->parent_id)->count() == 0)
				Activity::find($data->parent_id)->update(["type_activity"=>"task"]);

			$data->updateBobot(true);
			$data->updateCostPlanning();
			if($data->bobot_planning){
				$data->updatePersentaseProgress();
				$data->updateCostActual();
			}
			if($this->start_date != request()->start_date || $this->end_date != request()->end_date) {
				$data->updateStartEndDateHeader();
			}
		});

	}

	private function updateBobot($isDelete = false)
	{
		$root = Activity::where('version_gantt_id', $this->version_gantt_id)
			->where("proyek_id", $this->proyek_id)
			->whereNull('parent_id')
			->first();

		if($root->rencana_biaya > 0){
			$activities = Activity::where("proyek_id", $this->proyek_id)->where("version_gantt_id", $this->version_gantt_id)->get();
			foreach ($activities as $activity) {
				if($isDelete && $activity->id == $this->id)
					continue;

				$activity->bobot_planning = ( (int)$activity->rencana_biaya / $root->rencana_biaya) * 100;
				$activity->updated_by = auth()->user() ? auth()->user()->name : "system";
				$activity->saveQuietly();

			}
		} else {
			if($parent = Activity::find($this->parent_id)){
				$totalChildWeight = Activity::where("parent_id", $this->parent_id)->sum('bobot_planning');
				$parent->update([
					"bobot_planning" => $totalChildWeight
				]);
			}
		}
	}

	private function updateCostActual()
	{
		$actualCost = Activity::where("parent_id", $this->parent_id)->sum("biaya_actual");
		$this->biaya_actual = $actualCost;
		if($parent = Activity::find($this->parent_id)){
			$parent->update([
				"biaya_actual" => $actualCost
			]);
		}
	}

	private function updatePersentaseProgress()
	{
		if($parent = Activity::find($this->parent_id)){
			$parentActWeight = $parent->bobot_planning;

			$totalChildProportionalProgress = 0;
			$childs = Activity::where("parent_id", $parent->id)->get();
			foreach($childs as $child){
				$currentActWeight = $child->bobot_planning;
				$currentActProportionalProgress = ($currentActWeight / $parentActWeight) * $child->persentase_progress;
				$totalChildProportionalProgress += $currentActProportionalProgress;
			}
			$parent->update([
				"persentase_progress" => $totalChildProportionalProgress
			]);
		}
	}

	private function updateCostPlanning() {
		$sumBiaya = Activity::select(DB::raw('sum(cast(rencana_biaya as double precision))'))
			->where("parent_id", $this->parent_id)
			->first();
		$this->rencana_biaya = $sumBiaya->sum;
		if($parent = Activity::find($this->parent_id)){
			$parent->update([
				"rencana_biaya" => $sumBiaya->sum,
			]);
		}
	}

	private function logPersentaseProgress()
	{
		ActivityProgressLog::create([
			'version_gantt_id' => $this->version_gantt_id,
			'activity_id' => request()->id,
			'old_percentage' => $this->persentase_progress,
			'new_percentage' => request()->persentase_progress,
			'variance' => $this->persentase_progress - request()->persentase_progress,
			'created_by'=> "system"
		]);
	}

	private function updateStartEndDateHeader()
	{
		$earliestStartDate = Activity::where('version_gantt_id', $this->version_gantt_id)->oldest('start_date')->pluck('start_date')->first();
		$latestEndDate = Activity::where('version_gantt_id', $this->version_gantt_id)->latest('end_date')->pluck('end_date')->first();
		if($header = Activity::where('version_gantt_id', $this->version_gantt_id)->whereNull('parent_id')->first()) {
			$header->update([
				"start_date" => $earliestStartDate,
				"end_date" => $latestEndDate
			]);
		}
	}

	public function getJobsDoneAttribute()
	{
        if(!ReportActivityMaterial::where('activity_id', $this->id)->first())
                return 0;
        if(!$dataPlan = AssignMaterial::where('activity_id', $this->id)->get())
                return 0;
		if($dataPlan[0]->status_activity == 'done')
				return 100;
		return $this->persentase_progress;
	}

	public function getAssignHrAttribute()
	{
		return Arr::flatten(UserToActivity::select("u.name as name")
			->join("m_users as u", "u.id", "=", "assign_hr_to_activity.user_id")
			->where('assign_hr_to_activity.activity_id', $this->id)
			->get()
			->toArray());
	}

	public function getAssignMaterialAttribute()
	{
		return Arr::flatten(AssignMaterial::select("m.description as name")
			->join("m_req_material as m", "m.id", "=", "assign_material_to_activity.material_id")
			->where('assign_material_to_activity.activity_id', $this->id)
			->where('assign_material_to_activity.type', "material")
			->get()
			->toArray());
	}

	public function getAssignExpenseAttribute()
	{
		return Arr::flatten(AssignMaterial::select("m.description as name")
			->join("m_req_material as m", "m.id", "=", "assign_material_to_activity.material_id")
			->where('assign_material_to_activity.activity_id', $this->id)
			->where('assign_material_to_activity.type', "expense")
			->get()
			->toArray());
	}

	public function getAssignToolsAttribute()
	{
		return Arr::flatten(AssignTools::select("m.name as name")
			->join("m_tools_resource as m", "m.id", "=", "assign_tools_to_activity.tools_id")
			->where('assign_tools_to_activity.activity_id', $this->id)
			->get()
			->toArray());
	}

}