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  1. <?php
  2.  
  3. function calculateMonthlyPayroll(PDO $pdo, string $employeeId, int $year, int $month): float
  4. {
  5.     if ($month < 1 || $month > 12) {
  6.         throw new InvalidArgumentException('Month must be between 1 and 12');
  7.     }
  8.  
  9.     // Get all active contracts for the employee in this month
  10.     $contracts = getActiveContracts($pdo, $employeeId, $year, $month);
  11.  
  12.     $totalAmount = 0.0;
  13.  
  14.     // Calculate previous month for revenue share considerations
  15.     $previousMonth = $month - 1;
  16.     $previousYear = $year;
  17.     if ($previousMonth < 1) {
  18.         $previousMonth = 12;
  19.         $previousYear = $year - 1;
  20.     }
  21.  
  22.     // Process each contract based on role
  23.     foreach ($contracts as $contract) {
  24.         $roleCategory = $contract['role_category'];
  25.  
  26.         switch ($roleCategory) {
  27.             case 'actor':
  28.                 // Fixed fee installment
  29.                 if ($contract['fixed_fee_total'] && $contract['filming_duration_months']) {
  30.                     $totalAmount += $contract['fixed_fee_total'] / $contract['filming_duration_months'];
  31.                 }
  32.  
  33.                 // Calculate revenue share for the previous month
  34.                 if ($contract['revenue_share_percentage']) {
  35.                     $revenue = getFilmRevenue($pdo, $contract['film_id'], $previousYear, $previousMonth);
  36.                     if ($revenue) {
  37.                         $totalAmount += $revenue * ($contract['revenue_share_percentage'] / 100);
  38.                     }
  39.                 }
  40.                 break;
  41.  
  42.             case 'production_staff':
  43.                 // Production Staff: Monthly fixed amount only
  44.                 if ($contract['monthly_amount']) {
  45.                     $totalAmount += $contract['monthly_amount'];
  46.                 }
  47.                 break;
  48.  
  49.             case 'senior_staff':
  50.                 // Monthly fixed amount
  51.                 if ($contract['monthly_amount']) {
  52.                     $totalAmount += $contract['monthly_amount'];
  53.                 }
  54.  
  55.                 // Ongoing revenue share from PREVIOUS month
  56.                 if ($contract['revenue_share_percentage']) {
  57.                     $revenue = getFilmRevenue($pdo, $contract['film_id'], $previousYear, $previousMonth);
  58.                     if ($revenue) {
  59.                         $totalAmount += $revenue * ($contract['revenue_share_percentage'] / 100);
  60.                     }
  61.                 }
  62.                 break;
  63.         }
  64.     }
  65.  
  66.     return $totalAmount;
  67. }
  68.  
  69. // Get active contracts for an employee in a specific month.
  70. function getActiveContracts(PDO $pdo, string $employeeId, int $year, int $month): array
  71. {   
  72.     // Calculate the first day of the month for contract validity check
  73.     $calculationDate = sprintf('%04d-%02d-01', $year, $month);
  74.  
  75.     $stmt = $pdo->prepare("
  76.         SELECT 
  77.             c.id,
  78.             c.fixed_fee_total,
  79.             c.monthly_amount,
  80.             c.filming_duration_months,
  81.             c.revenue_share_percentage,
  82.             r.category as role_category,
  83.             f.id as film_id
  84.         FROM contract c
  85.         INNER JOIN role r ON c.role_id = r.id
  86.         INNER JOIN film f ON c.film_id = f.id
  87.         WHERE c.employee_id = :employee_id
  88.           AND c.start_date <= :calculation_date
  89.           AND c.end_date >= :calculation_date
  90.           AND c.status = 'active'
  91.     ");
  92.  
  93.     $stmt->execute([
  94.         'employee_id' => $employeeId,
  95.         'calculation_date' => $calculationDate
  96.     ]);
  97.  
  98.     return $stmt->fetchAll(PDO::FETCH_ASSOC);
  99. }
  100.  
  101. // Get film revenue for a specific month.
  102. function getFilmRevenue(PDO $pdo, string $filmId, int $year, int $month): ?float
  103. {
  104.     $stmt = $pdo->prepare("
  105.         SELECT revenue_amount
  106.         FROM film_revenue
  107.         WHERE film_id = :film_id
  108.           AND year = :year
  109.           AND month = :month
  110.     ");
  111.  
  112.     $stmt->execute([
  113.         'film_id' => $filmId,
  114.         'year' => $year,
  115.         'month' => $month
  116.     ]);
  117.  
  118.     $result = $stmt->fetch(PDO::FETCH_ASSOC);
  119.     return $result ? (float) $result['revenue_amount'] : null;
  120. }
  121.  
Success #stdin #stdout 0.04s 25768KB
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https://ideone.com/RIdEPE
language:
PHP (php 7.3.5)
created:
9 hours ago
visibility:
public

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