<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\HasOne;
use Illuminate\Database\Eloquent\Relations\BelongsTo;

/**
 * Class SpatialPlanning
 *
 * @property $id
 * @property $created_at
 * @property $updated_at
 * @property $name
 * @property $kbli
 * @property $activities
 * @property $area
 * @property $location
 * @property $number
 * @property $date
 *
 * @package App
 * @mixin \Illuminate\Database\Eloquent\Builder
 */
class SpatialPlanning extends Model
{
    
    protected $perPage = 20;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = ['name', 'kbli', 'activities', 'area', 'location', 'number', 'date', 'no_tapak', 'no_skkl', 'no_ukl', 'building_function', 'sub_building_function', 'number_of_floors', 'land_area', 'site_bcr'];

    protected $casts = [
        'area' => 'decimal:6',
        'land_area' => 'decimal:6',
        'site_bcr' => 'decimal:6',
        'number_of_floors' => 'integer',
        'date' => 'date'
    ];

    /**
     * Retribution calculation relationship (1:1)
     */
    public function retributionCalculation(): HasOne
    {
        return $this->hasOne(RetributionCalculation::class);
    }

    /**
     * Building function relationship (if building_function becomes FK in future)
     */
    public function buildingFunctionRelation(): BelongsTo
    {
        return $this->belongsTo(BuildingFunction::class, 'building_function_id');
    }

    /**
     * Check if spatial planning has retribution calculation
     */
    public function hasRetributionCalculation(): bool
    {
        return $this->retributionCalculation()->exists();
    }

    /**
     * Get building function text for detection
     */
    public function getBuildingFunctionText(): string
    {
        return $this->building_function ?? $this->activities ?? '';
    }

    /**
     * Get area for calculation (prioritize area, fallback to land_area)
     */
    public function getCalculationArea(): float
    {
        return (float) ($this->area ?? $this->land_area ?? 0);
    }

    /**
     * Scope: Without retribution calculation
     */
    public function scopeWithoutRetributionCalculation($query)
    {
        return $query->whereDoesntHave('retributionCalculation');
    }

    /**
     * Scope: With retribution calculation
     */
    public function scopeWithRetributionCalculation($query)
    {
        return $query->whereHas('retributionCalculation');
    }
}