<?php
/**
 * Customer Settings Provider
 * 
 * Provides customer-related settings including VIP qualification criteria.
 * 
 * @package WooNooW
 */

namespace WooNooW\Compat;

class CustomerSettingsProvider {
	
	/**
	 * Get customer settings
	 * 
	 * @return array
	 */
	public static function get_settings() {
		return [
			// VIP Customer Qualification
			'vip_min_spent' => floatval(get_option('woonoow_vip_min_spent', 1000)),
			'vip_min_orders' => intval(get_option('woonoow_vip_min_orders', 10)),
			'vip_timeframe' => get_option('woonoow_vip_timeframe', 'all'), // all, 30, 90, 365
			'vip_require_both' => get_option('woonoow_vip_require_both', 'yes') === 'yes',
			'vip_exclude_refunded' => get_option('woonoow_vip_exclude_refunded', 'yes') === 'yes',
		];
	}
	
	/**
	 * Update customer settings
	 * 
	 * @param array $settings
	 * @return bool
	 */
	public static function update_settings($settings) {
		$updated = true;
		
		// VIP settings
		if (isset($settings['vip_min_spent'])) {
			$updated = $updated && update_option('woonoow_vip_min_spent', floatval($settings['vip_min_spent']));
		}
		
		if (isset($settings['vip_min_orders'])) {
			$updated = $updated && update_option('woonoow_vip_min_orders', intval($settings['vip_min_orders']));
		}
		
		if (isset($settings['vip_timeframe'])) {
			$timeframe = in_array($settings['vip_timeframe'], ['all', '30', '90', '365']) 
				? $settings['vip_timeframe'] 
				: 'all';
			$updated = $updated && update_option('woonoow_vip_timeframe', $timeframe);
		}
		
		if (isset($settings['vip_require_both'])) {
			$updated = $updated && update_option('woonoow_vip_require_both', $settings['vip_require_both'] ? 'yes' : 'no');
		}
		
		if (isset($settings['vip_exclude_refunded'])) {
			$updated = $updated && update_option('woonoow_vip_exclude_refunded', $settings['vip_exclude_refunded'] ? 'yes' : 'no');
		}
		
		return $updated;
	}
	
	/**
	 * Check if a customer is VIP based on current settings
	 * 
	 * @param int $customer_id
	 * @return bool
	 */
	public static function is_vip_customer($customer_id) {
		if (!$customer_id || $customer_id <= 0) {
			return false;
		}
		
		$settings = self::get_settings();
		
		// Build query args
		$query_args = [
			'customer_id' => $customer_id,
			'status' => ['wc-completed', 'wc-processing'],
			'limit' => -1, // Get all orders
		];
		
		// Apply timeframe filter
		if ($settings['vip_timeframe'] !== 'all') {
			$days = intval($settings['vip_timeframe']);
			$query_args['date_created'] = '>' . date('Y-m-d', strtotime("-{$days} days"));
		}
		
		// Exclude refunded orders if setting is enabled
		if ($settings['vip_exclude_refunded']) {
			$query_args['status'] = array_diff($query_args['status'], ['wc-refunded']);
		}
		
		// Get orders
		$orders = wc_get_orders($query_args);
		
		// Calculate totals
		$total_spent = 0;
		$order_count = count($orders);
		
		foreach ($orders as $order) {
			$total_spent += floatval($order->get_total());
		}
		
		// Check qualification
		$meets_spent = $total_spent >= $settings['vip_min_spent'];
		$meets_orders = $order_count >= $settings['vip_min_orders'];
		
		if ($settings['vip_require_both']) {
			// Must meet both criteria
			return $meets_spent && $meets_orders;
		} else {
			// Must meet at least one criterion
			return $meets_spent || $meets_orders;
		}
	}
	
	/**
	 * Get VIP customer stats for a customer
	 * 
	 * @param int $customer_id
	 * @return array
	 */
	public static function get_vip_stats($customer_id) {
		if (!$customer_id || $customer_id <= 0) {
			return [
				'is_vip' => false,
				'total_spent' => 0,
				'order_count' => 0,
				'meets_spent' => false,
				'meets_orders' => false,
			];
		}
		
		$settings = self::get_settings();
		
		// Build query args
		$query_args = [
			'customer_id' => $customer_id,
			'status' => ['wc-completed', 'wc-processing'],
			'limit' => -1,
		];
		
		// Apply timeframe filter
		if ($settings['vip_timeframe'] !== 'all') {
			$days = intval($settings['vip_timeframe']);
			$query_args['date_created'] = '>' . date('Y-m-d', strtotime("-{$days} days"));
		}
		
		// Exclude refunded if enabled
		if ($settings['vip_exclude_refunded']) {
			$query_args['status'] = array_diff($query_args['status'], ['wc-refunded']);
		}
		
		// Get orders
		$orders = wc_get_orders($query_args);
		
		// Calculate totals
		$total_spent = 0;
		$order_count = count($orders);
		
		foreach ($orders as $order) {
			$total_spent += floatval($order->get_total());
		}
		
		// Check criteria
		$meets_spent = $total_spent >= $settings['vip_min_spent'];
		$meets_orders = $order_count >= $settings['vip_min_orders'];
		
		$is_vip = $settings['vip_require_both'] 
			? ($meets_spent && $meets_orders)
			: ($meets_spent || $meets_orders);
		
		return [
			'is_vip' => $is_vip,
			'total_spent' => $total_spent,
			'order_count' => $order_count,
			'meets_spent' => $meets_spent,
			'meets_orders' => $meets_orders,
			'required_spent' => $settings['vip_min_spent'],
			'required_orders' => $settings['vip_min_orders'],
		];
	}
}