<?php
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class ANFOWO_AJAX_Handler {

	public function __construct() {
		add_action( 'wp_ajax_anfowo_get_dashboard_data', array( $this, 'get_dashboard_data' ) );
	}

	public function get_dashboard_data() {
		check_ajax_referer( 'anfowo_admin_nonce', 'nonce' );

		if ( ! current_user_can( 'manage_woocommerce' ) ) {
			wp_send_json_error( 'Unauthorized' );
		}

		$tab        = isset( $_POST['tab'] ) ? sanitize_text_field( wp_unslash( $_POST['tab'] ) ) : 'overview';
		$period     = isset( $_POST['period'] ) ? sanitize_text_field( wp_unslash( $_POST['period'] ) ) : 'last_30_days';
		$start_date = isset( $_POST['start_date'] ) ? sanitize_text_field( wp_unslash( $_POST['start_date'] ) ) : '';
		$end_date   = isset( $_POST['end_date'] ) ? sanitize_text_field( wp_unslash( $_POST['end_date'] ) ) : '';

		$params = array(
			'period'     => $period,
			'start_date' => $start_date,
			'end_date'   => $end_date,
		);

		// Resolve Dates
		if ( class_exists( 'ANFOWO_Date_Resolver' ) ) {
			$dates = ANFOWO_Date_Resolver::resolve( $params );
		} else {
			$dates = array( 'start' => gmdate( 'Y-m-d', strtotime( '-30 days' ) ), 'end' => gmdate( 'Y-m-d' ) );
		}
		
		// Capture View output
		ob_start();
		$chart_data = $this->render_view( $tab, $dates );
		$html = ob_get_clean();

		$response = array(
			'html'  => $html,
			'chart' => $chart_data,
		);

		wp_send_json_success( $response );
	}

	public function render_view( $tab, $dates ) {
		$data = array();
		$chart_data = array();
		
		switch ( $tab ) {
			case 'overview':
				if ( class_exists( 'ANFOWO_Product_Query' ) ) {
					$overview_data = ANFOWO_Product_Query::get_overview( $dates );
					$data['summary'] = ANFOWO_Product_Query::get_summary( $dates );
					$chart_data = array(
						'labels' => $overview_data['chart']['labels'],
						'data' => $overview_data['chart']['revenue']
					);
				}
				include ANFOWO_PLUGIN_DIR . 'admin/views/overview.php';
				break;
			case 'products':
				if ( class_exists( 'ANFOWO_Product_Query' ) ) {
					$data['products'] = ANFOWO_Product_Query::get_report( $dates );
					$chart_data = array(
						'labels'      => $data['products']['chart']['labels'],
						'data'        => $data['products']['chart']['quantity'],
						'is_quantity' => true,
						'label'       => __( 'Quantity', '360-analytics-for-woocommerce' ),
					);
				}
				include ANFOWO_PLUGIN_DIR . 'admin/views/product-report.php';
				break;
			case 'categories':
				if ( class_exists( 'ANFOWO_Category_Query' ) ) {
					$data['categories'] = ANFOWO_Category_Query::get_report( $dates );
					$chart_data = array(
						'labels'      => $data['categories']['chart']['labels'],
						'data'        => $data['categories']['chart']['quantity'],
						'is_quantity' => true,
						'label'       => __( 'Quantity', '360-analytics-for-woocommerce' ),
					);
				}
				include ANFOWO_PLUGIN_DIR . 'admin/views/category-report.php';
				break;
			case 'taxonomies':
				// phpcs:ignore WordPress.Security.NonceVerification.Missing
				$taxonomy_type = isset( $_POST['taxonomy'] ) ? sanitize_text_field( wp_unslash( $_POST['taxonomy'] ) ) : 'all';
				if ( class_exists( 'ANFOWO_Taxonomy_Query' ) ) {
					$data['taxonomies'] = ANFOWO_Taxonomy_Query::get_report( $dates, $taxonomy_type );
					$data['taxonomies']['current_taxonomy'] = $taxonomy_type;
					$chart_data = array(
						'labels'      => $data['taxonomies']['chart']['labels'],
						'data'        => $data['taxonomies']['chart']['quantity'],
						'is_quantity' => true,
						'label'       => __( 'Quantity', '360-analytics-for-woocommerce' ),
					);
				}
				include ANFOWO_PLUGIN_DIR . 'admin/views/taxonomy-report.php';
				break;
			case 'taxes':
				if ( class_exists( 'ANFOWO_Tax_Query' ) ) {
					$data['taxes'] = ANFOWO_Tax_Query::get_report( $dates );
					$chart_data = array(); // Taxes might not need a chart
				}
				include ANFOWO_PLUGIN_DIR . 'admin/views/tax-report.php';
				break;
			case 'orders':
				if ( class_exists( 'ANFOWO_Order_Query' ) ) {
					$data['orders'] = ANFOWO_Order_Query::get_report( $dates );
					$chart_data = array(); 
				}
				include ANFOWO_PLUGIN_DIR . 'admin/views/orders-report.php';
				break;
			case 'customers':
				if ( class_exists( 'ANFOWO_Customer_Query' ) ) {
					$data['customers'] = ANFOWO_Customer_Query::get_report( $dates );
					$chart_data = array(
						'labels'      => $data['customers']['chart']['labels'],
						'data'        => $data['customers']['chart']['quantity'],
						'is_quantity' => true,
						'label'       => __( 'Quantity', '360-analytics-for-woocommerce' ),
					);
				}
				include ANFOWO_PLUGIN_DIR . 'admin/views/customer-report.php';
				break;
		}

		return $chart_data;
	}

	public function get_chart_data( $tab, $dates ) {
		// Deprecated: Now returned directly by render_view
		return array();
	}
}