الخطوة 2: التحقق من صحة المدخلات

function validatePhoneNumber(phone) {
  if (typeof phone !== 'string') {
    return { valid: false, error: 'Phone number must be a string' };
  }
  
  phone = phone.trim();
  
  if (!/^0[567][0-9]{8}$/.test(phone)) {
    return { valid: false, error: 'Invalid phone format. Must be 10 digits starting with 05, 06, or 07' };
  }
  
  return { valid: true, phone };
}

import re

def validate_phone_number(phone):
    if not isinstance(phone, str):
        return {'valid': False, 'error': 'Phone number must be a string'}
    
    phone = phone.strip()
    
    if not re.match(r'^0[567][0-9]{8}$', phone):
        return {'valid': False, 'error': 'Invalid phone format. Must be 10 digits starting with 05, 06, or 07'}
    
    return {'valid': True, 'phone': phone}

<?php

function validatePhoneNumber($phone) {
    if (!is_string($phone)) {
        return ['valid' => false, 'error' => 'Phone number must be a string'];
    }
    
    $phone = trim($phone);
    
    if (!preg_match('/^0[567][0-9]{8}$/', $phone)) {
        return ['valid' => false, 'error' => 'Invalid phone format. Must be 10 digits starting with 05, 06, or 07'];
    }
    
    return ['valid' => true, 'phone' => $phone];
}

function validatePlan(planCode, plans) {
  const plan = plans.find(p => p.code === planCode);
  
  if (!plan) {
    return { valid: false, error: `Plan ${planCode} not found` };
  }
  
  if (!plan.isEnabled) {
    return { valid: false, error: `Plan ${plan.name} is currently unavailable` };
  }
  
  return { valid: true, plan };
}

def validate_plan(plan_code, plans):
    plan = next((p for p in plans if p['code'] == plan_code), None)
    
    if not plan:
        return {'valid': False, 'error': f'Plan {plan_code} not found'}
    
    if not plan['is_enabled']:
        return {'valid': False, 'error': f"Plan {plan['name']} is currently unavailable"}
    
    return {'valid': True, 'plan': plan}

<?php

function validatePlan($planCode, $plans) {
    $plan = null;
    foreach ($plans as $p) {
        if ($p['code'] === $planCode) {
            $plan = $p;
            break;
        }
    }
    
    if (!$plan) {
        return ['valid' => false, 'error' => "Plan $planCode not found"];
    }
    
    if (!$plan['is_enabled']) {
        return ['valid' => false, 'error' => "Plan {$plan['name']} is currently unavailable"];
    }
    
    return ['valid' => true, 'plan' => $plan];
}

function validateAmount(amount, plan) {
  // Fixed plans use their predefined amount
  if (plan.type === 'fixed') {
    return { valid: true, amount: plan.fixedAmount };
  }
  
  // Dynamic plans require amount within range
  if (!amount) {
    return { valid: false, error: 'Amount is required for dynamic plans' };
  }
  
  const numAmount = Number(amount);
  
  if (isNaN(numAmount) || !Number.isInteger(numAmount)) {
    return { valid: false, error: 'Amount must be an integer' };
  }
  
  if (numAmount < plan.minAmount) {
    return { valid: false, error: `Amount must be at least ${plan.minAmount} DZD` };
  }
  
  if (numAmount > plan.maxAmount) {
    return { valid: false, error: `Amount cannot exceed ${plan.maxAmount} DZD` };
  }
  
  return { valid: true, amount: numAmount };
}

def validate_amount(amount, plan):
    # Fixed plans use their predefined amount
    if plan['type'] == 'fixed':
        return {'valid': True, 'amount': plan['fixed_amount']}
    
    # Dynamic plans require amount within range
    if amount is None:
        return {'valid': False, 'error': 'Amount is required for dynamic plans'}
    
    try:
        num_amount = int(amount)
    except (ValueError, TypeError):
        return {'valid': False, 'error': 'Amount must be an integer'}
    
    if num_amount < plan['min_amount']:
        return {'valid': False, 'error': f"Amount must be at least {plan['min_amount']} DZD"}
    
    if num_amount > plan['max_amount']:
        return {'valid': False, 'error': f"Amount cannot exceed {plan['max_amount']} DZD"}
    
    return {'valid': True, 'amount': num_amount}

<?php

function validateAmount($amount, $plan) {
    // Fixed plans use their predefined amount
    if ($plan['type'] === 'fixed') {
        return ['valid' => true, 'amount' => $plan['fixed_amount']];
    }
    
    // Dynamic plans require amount within range
    if ($amount === null || $amount === '') {
        return ['valid' => false, 'error' => 'Amount is required for dynamic plans'];
    }
    
    if (!is_numeric($amount)) {
        return ['valid' => false, 'error' => 'Amount must be an integer'];
    }
    
    $numAmount = (int)$amount;
    
    if ($numAmount < $plan['min_amount']) {
        return ['valid' => false, 'error' => "Amount must be at least {$plan['min_amount']} DZD"];
    }
    
    if ($numAmount > $plan['max_amount']) {
        return ['valid' => false, 'error' => "Amount cannot exceed {$plan['max_amount']} DZD"];
    }
    
    return ['valid' => true, 'amount' => $numAmount];
}

function validateTopUpRequest(data, plans) {
  const errors = [];
  
  // Validate phone
  const phoneValidation = validatePhoneNumber(data.phone);
  if (!phoneValidation.valid) {
    errors.push({ field: 'phone', message: phoneValidation.error });
  }
  
  // Validate plan
  const planValidation = validatePlan(data.planCode, plans);
  if (!planValidation.valid) {
    errors.push({ field: 'planCode', message: planValidation.error });
    return { valid: false, errors };
  }
  
  // Validate amount
  const amountValidation = validateAmount(data.amount, planValidation.plan);
  if (!amountValidation.valid) {
    errors.push({ field: 'amount', message: amountValidation.error });
  }
  
  if (errors.length > 0) {
    return { valid: false, errors };
  }
  
  return {
    valid: true,
    data: {
      phone: phoneValidation.phone,
      planCode: planValidation.plan.code,
      amount: amountValidation.amount
    }
  };
}

// Usage
const result = validateTopUpRequest({
  phone: '0778037340',
  planCode: 'PREPAID_DJEZZY',
  amount: 500
}, plans);

if (!result.valid) {
  console.error('Validation errors:', result.errors);
} else {
  console.log('Valid request:', result.data);
}

def validate_topup_request(data, plans):
    errors = []
    
    # Validate phone
    phone_validation = validate_phone_number(data.get('phone'))
    if not phone_validation['valid']:
        errors.append({'field': 'phone', 'message': phone_validation['error']})
    
    # Validate plan
    plan_validation = validate_plan(data.get('plan_code'), plans)
    if not plan_validation['valid']:
        errors.append({'field': 'plan_code', 'message': plan_validation['error']})
        return {'valid': False, 'errors': errors}
    
    # Validate amount
    amount_validation = validate_amount(data.get('amount'), plan_validation['plan'])
    if not amount_validation['valid']:
        errors.append({'field': 'amount', 'message': amount_validation['error']})
    
    if errors:
        return {'valid': False, 'errors': errors}
    
    return {
        'valid': True,
        'data': {
            'phone': phone_validation['phone'],
            'plan_code': plan_validation['plan']['code'],
            'amount': amount_validation['amount']
        }
    }

# Usage
result = validate_topup_request({
    'phone': '0778037340',
    'plan_code': 'PREPAID_DJEZZY',
    'amount': 500
}, plans)

if not result['valid']:
    print('Validation errors:', result['errors'])
else:
    print('Valid request:', result['data'])

<?php

function validateTopUpRequest($data, $plans) {
    $errors = [];
    
    // Validate phone
    $phoneValidation = validatePhoneNumber($data['phone'] ?? '');
    if (!$phoneValidation['valid']) {
        $errors[] = ['field' => 'phone', 'message' => $phoneValidation['error']];
    }
    
    // Validate plan
    $planValidation = validatePlan($data['plan_code'] ?? '', $plans);
    if (!$planValidation['valid']) {
        $errors[] = ['field' => 'plan_code', 'message' => $planValidation['error']];
        return ['valid' => false, 'errors' => $errors];
    }
    
    // Validate amount
    $amountValidation = validateAmount($data['amount'] ?? null, $planValidation['plan']);
    if (!$amountValidation['valid']) {
        $errors[] = ['field' => 'amount', 'message' => $amountValidation['error']];
    }
    
    if (!empty($errors)) {
        return ['valid' => false, 'errors' => $errors];
    }
    
    return [
        'valid' => true,
        'data' => [
            'phone' => $phoneValidation['phone'],
            'plan_code' => $planValidation['plan']['code'],
            'amount' => $amountValidation['amount']
        ]
    ];
}

// Usage
$result = validateTopUpRequest([
    'phone' => '0778037340',
    'plan_code' => 'PREPAID_DJEZZY',
    'amount' => 500
], $plans);

if (!$result['valid']) {
    print_r($result['errors']);
} else {
    print_r($result['data']);
}