<?php

namespace App\Models;

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

class BuildingFunctionParameter extends Model
{
    protected $fillable = [
        'building_function_id',
        'fungsi_bangunan',
        'ip_permanen',
        'ip_kompleksitas',
        'indeks_lokalitas',
        'asumsi_prasarana',
        'koefisien_dasar',
        'faktor_penyesuaian',
        'custom_parameters',
        'parameter_notes'
    ];

    protected $casts = [
        'fungsi_bangunan' => 'decimal:6',
        'ip_permanen' => 'decimal:6',
        'ip_kompleksitas' => 'decimal:6',
        'indeks_lokalitas' => 'decimal:6',
        'asumsi_prasarana' => 'decimal:6',
        'koefisien_dasar' => 'decimal:6',
        'faktor_penyesuaian' => 'decimal:6',
        'custom_parameters' => 'array'
    ];

    /**
     * Building function relationship (1:1)
     */
    public function buildingFunction(): BelongsTo
    {
        return $this->belongsTo(BuildingFunction::class);
    }

    /**
     * Scope: Active parameters only
     */
    public function scopeActive($query)
    {
        return $query->where('is_active', true);
    }

    /**
     * Get all parameter values as array
     */
    public function getParametersArray(): array
    {
        return [
            'fungsi_bangunan' => $this->fungsi_bangunan,
            'ip_permanen' => $this->ip_permanen,
            'ip_kompleksitas' => $this->ip_kompleksitas,
            'indeks_lokalitas' => $this->indeks_lokalitas,
            'asumsi_prasarana' => $this->asumsi_prasarana,
            'koefisien_dasar' => $this->koefisien_dasar,
            'faktor_penyesuaian' => $this->faktor_penyesuaian,
            'custom_parameters' => $this->custom_parameters
        ];
    }

    /**
     * Get formatted parameters for display
     */
    public function getFormattedParameters(): array
    {
        return [
            'Fungsi Bangunan' => $this->fungsi_bangunan,
            'IP Permanen' => $this->ip_permanen,
            'IP Kompleksitas' => $this->ip_kompleksitas,
            'Indeks Lokalitas' => $this->indeks_lokalitas,
            'Asumsi Prasarana' => $this->asumsi_prasarana,
            'Koefisien Dasar' => $this->koefisien_dasar,
            'Faktor Penyesuaian' => $this->faktor_penyesuaian
        ];
    }

    /**
     * Calculate floor result using the main formula
     */
    public function calculateFloorResult(float $ipKetinggian): float
    {
        return $this->fungsi_bangunan * (
            $this->ip_permanen + 
            $this->ip_kompleksitas + 
            (0.5 * $ipKetinggian)
        );
    }

    /**
     * Calculate full retribution for given building area and floor result
     */
    public function calculateRetribution(float $luasBangunan, float $floorResult): float
    {
        $baseValue = 70350; // Base retribution value
        $mainCalculation = 1 * $luasBangunan * ($this->indeks_lokalitas * $baseValue * $floorResult * 1);
        $additionalCalculation = 0.5 * $mainCalculation;
        
        return $mainCalculation + $additionalCalculation;
    }

    /**
     * Apply custom parameters if available
     */
    public function getParameterValue(string $key, $default = null)
    {
        // First check if it's a standard parameter
        if (property_exists($this, $key) && $this->$key !== null) {
            return $this->$key;
        }

        // Then check custom parameters
        if ($this->custom_parameters && is_array($this->custom_parameters)) {
            return $this->custom_parameters[$key] ?? $default;
        }

        return $default;
    }

    /**
     * Set custom parameter
     */
    public function setCustomParameter(string $key, $value): void
    {
        $customParams = $this->custom_parameters ?? [];
        $customParams[$key] = $value;
        $this->custom_parameters = $customParams;
    }
}