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create service count floor level and retributions

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arifal
2025-06-18 18:44:30 +07:00
parent df70a47bd1
commit 59cc102c5a
13 changed files with 1415 additions and 180 deletions
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app/Services/DynamicRetributionCalculationService.php Normal file
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<?php
namespace App\Services;
use App\Models\BuildingFunction;
use App\Models\MasterParameter;
/**
* Retribution Calculation Service - Rundown 4 Implementation
*
* Implementasi rumus Excel Rundown 4:
* =ROUNDDOWN(($E13*($F13+$G13+(0.5*I$3))),4)
* Retribusi = (1*D5*(N5*7035000*H5*1))+($O$3*(1*D5*(N5*7035000*H5*1)))
*/
class DynamicRetributionCalculationService
{
/**
* Calculate retribution using Rundown 4 formula
*/
public function calculateRetribution($buildingFunctionId, $floorLevel, $luasBangunan, $indeksLokasi = 'sedang', $includeInfrastructure = true)
{
try {
// Get parameters for this building function
$parameters = $this->getParameterValues($buildingFunctionId, $floorLevel, $indeksLokasi);
// Step 1: Calculate Rundown 4 per floor value
$h5 = $this->calculateRundown4($parameters);
// Step 2: Calculate basic retribution
$basicRetribution = $parameters['koefisien_dasar'] * $luasBangunan *
($parameters['indeks_lokalitas'] * $parameters['tarif_dasar'] * $h5 * $parameters['koefisien_dasar']);
// Step 3: Calculate infrastructure (optional)
$infrastructureAmount = 0;
$totalRetribution = $basicRetribution;
if ($includeInfrastructure) {
$infrastructureAmount = $parameters['asumsi_prasarana'] * $basicRetribution;
$totalRetribution = $basicRetribution + $infrastructureAmount;
}
return [
'success' => true,
'building_function_id' => $buildingFunctionId,
'floor_level' => $floorLevel,
'luas_bangunan' => $luasBangunan,
'indeks_lokalitas_type' => $indeksLokasi,
'calculation_breakdown' => [
'rundown_4_calculation' => [
'excel_formula' => '=ROUNDDOWN(($E13*($F13+$G13+(0.5*I$3))),4)',
'fungsi_bangunan' => $parameters['fungsi'],
'ip_permanen' => $parameters['ip_permanen'],
'ip_kompleksitas' => $parameters['ip_kompleksitas'],
'multiplier_ketinggian' => $parameters['multiplier_ketinggian'],
'ip_ketinggian' => $parameters['ip_ketinggian'],
'before_rounddown' => $parameters['fungsi'] * ($parameters['ip_permanen'] + $parameters['ip_kompleksitas'] + ($parameters['multiplier_ketinggian'] * $parameters['ip_ketinggian'])),
'after_rounddown' => $h5,
'precision' => 4
],
'retribution_calculation' => [
'basic_formula' => '1 * D5 * (N5 * 7035000 * H5 * 1)',
'infrastructure_formula' => 'O3 * basic_retribution',
'basic_amount' => $basicRetribution,
'infrastructure_amount' => $infrastructureAmount,
'total_amount' => $totalRetribution
]
],
'results' => [
'h5_rundown4' => $h5,
'basic_retribution' => $basicRetribution,
'infrastructure_amount' => $infrastructureAmount,
'total_retribution' => $totalRetribution
]
];
} catch (\Exception $e) {
return [
'success' => false,
'error' => $e->getMessage(),
'building_function_id' => $buildingFunctionId,
'floor_level' => $floorLevel
];
}
}
/**
* Calculate multiple floors retribution
*/
public function calculateMultiFloorRetribution($buildingFunctionId, array $floors, $luasBangunan, $indeksLokasi = 'sedang')
{
$floorDetails = [];
$totalRetribution = 0;
foreach ($floors as $floor) {
$result = $this->calculateRetribution($buildingFunctionId, $floor, $luasBangunan, $indeksLokasi, true);
if ($result['success']) {
$floorDetails[$floor] = $result['results'];
$totalRetribution += $result['results']['total_retribution'];
}
}
return [
'success' => true,
'building_function_id' => $buildingFunctionId,
'floors' => $floors,
'luas_bangunan' => $luasBangunan,
'indeks_lokalitas_type' => $indeksLokasi,
'floor_details' => $floorDetails,
'total_retribution' => $totalRetribution,
'average_per_floor' => count($floors) > 0 ? $totalRetribution / count($floors) : 0
];
}
/**
* Calculate Rundown 4 per-floor value with ROUNDDOWN
* Formula: =ROUNDDOWN(($E13*($F13+$G13+(0.5*I$3))),4)
*/
private function calculateRundown4($parameters)
{
$calculation = $parameters['fungsi'] *
($parameters['ip_permanen'] + $parameters['ip_kompleksitas'] +
($parameters['multiplier_ketinggian'] * $parameters['ip_ketinggian']));
// Apply ROUNDDOWN with 4 decimal places
return floor($calculation * 10000) / 10000;
}
/**
* Get parameter values for calculation
*/
private function getParameterValues($buildingFunctionId, $floorLevel, $indeksLokasi)
{
$buildingFunction = BuildingFunction::find($buildingFunctionId);
if (!$buildingFunction) {
throw new \Exception("Building function not found: {$buildingFunctionId}");
}
$functionCode = strtolower($buildingFunction->code);
$lokalitasMapping = [
'rendah' => 'indeks_lokalitas_rendah',
'sedang' => 'indeks_lokalitas_sedang',
'tinggi' => 'indeks_lokalitas_tinggi'
];
$lokalitasParamCode = $lokalitasMapping[$indeksLokasi] ?? 'indeks_lokalitas_sedang';
$parameterCodes = [
'tarif_dasar',
'koefisien_dasar',
'multiplier_ketinggian',
'asumsi_prasarana',
$lokalitasParamCode,
"ip_ketinggian_{$floorLevel}",
"fungsi_{$functionCode}",
"ip_permanen_{$functionCode}",
"ip_kompleksitas_{$functionCode}"
];
$parameters = MasterParameter::whereIn('parameter_code', $parameterCodes)->get();
$values = [];
foreach ($parameters as $param) {
$values[$param->parameter_code] = $param->default_value;
}
return [
'tarif_dasar' => $values['tarif_dasar'] ?? 7035000,
'koefisien_dasar' => $values['koefisien_dasar'] ?? 1,
'multiplier_ketinggian' => $values['multiplier_ketinggian'] ?? 0.5,
'asumsi_prasarana' => $values['asumsi_prasarana'] ?? 0.5,
'indeks_lokalitas' => $values[$lokalitasParamCode] ?? 0.004,
'ip_ketinggian' => $values["ip_ketinggian_{$floorLevel}"] ?? 1.0,
'fungsi' => $values["fungsi_{$functionCode}"] ?? 0,
'ip_permanen' => $values["ip_permanen_{$functionCode}"] ?? 0,
'ip_kompleksitas' => $values["ip_kompleksitas_{$functionCode}"] ?? 0
];
}
}