/**
 * Admin JavaScript for Informatiq Smart Pricing
 */

(function($) {
	'use strict';

	var InformatiqSP = {
		/**
		 * Initialize
		 */
		init: function() {
			this.bindEvents();
		},

		/**
		 * Bind event handlers
		 */
		bindEvents: function() {
			$('#informatiq-sp-manual-sync').on('click', this.handleManualSync);
			$('#informatiq-sp-test-connection').on('click', this.handleTestConnection);
			$('#informatiq-sp-revoke-auth').on('click', this.handleRevokeAuth);
			$('#informatiq-sp-compare-products').on('click', this.handleCompareProducts);
		},

		/**
		 * Handle manual sync button click
		 */
		handleManualSync: function(e) {
			e.preventDefault();

			var $button = $(this);
			var $status = $('#informatiq-sp-sync-status');

			// Confirm action
			if (!confirm(informatiqSP.strings.confirmSync || 'Are you sure you want to run a manual price sync? This may take several minutes.')) {
				return;
			}

			// Disable button and show loading state
			$button.prop('disabled', true).addClass('informatiq-sp-loading');

			// Show status message
			$status
				.removeClass('notice-success notice-error')
				.addClass('notice-info')
				.html('<p>' + (informatiqSP.strings.syncInProgress || 'Sync in progress...') + '</p>')
				.show();

			// Make AJAX request
			$.ajax({
				url: informatiqSP.ajaxUrl,
				type: 'POST',
				data: {
					action: 'informatiq_sp_manual_sync',
					nonce: informatiqSP.nonce
				},
				success: function(response) {
					if (response.success) {
						$status
							.removeClass('notice-info notice-error')
							.addClass('notice-success')
							.html('<p>' + response.data.message + '</p>');

						// Reload page after 2 seconds to show updated logs
						setTimeout(function() {
							location.reload();
						}, 2000);
					} else {
						$status
							.removeClass('notice-info notice-success')
							.addClass('notice-error')
							.html('<p>Error: ' + (response.data.message || 'Unknown error') + '</p>');
					}
				},
				error: function(jqXHR, textStatus, errorThrown) {
					$status
						.removeClass('notice-info notice-success')
						.addClass('notice-error')
						.html('<p>Error: ' + errorThrown + '</p>');
				},
				complete: function() {
					$button.prop('disabled', false).removeClass('informatiq-sp-loading');
				}
			});
		},

		/**
		 * Handle test connection button click
		 */
		handleTestConnection: function(e) {
			e.preventDefault();

			var $button = $(this);
			var $status = $('#informatiq-sp-sync-status');

			// Disable button and show loading state
			$button.prop('disabled', true).addClass('informatiq-sp-loading');

			// Show status message
			$status
				.removeClass('notice-success notice-error')
				.addClass('notice-info')
				.html('<p>' + (informatiqSP.strings.testInProgress || 'Testing connection...') + '</p>')
				.show();

			// Make AJAX request
			$.ajax({
				url: informatiqSP.ajaxUrl,
				type: 'POST',
				data: {
					action: 'informatiq_sp_test_connection',
					nonce: informatiqSP.nonce
				},
				success: function(response) {
					if (response.success) {
						$status
							.removeClass('notice-info notice-error')
							.addClass('notice-success')
							.html('<p>' + response.data.message + '</p>');
					} else {
						$status
							.removeClass('notice-info notice-success')
							.addClass('notice-error')
							.html('<p>Error: ' + (response.data.message || 'Unknown error') + '</p>');
					}
				},
				error: function(jqXHR, textStatus, errorThrown) {
					$status
						.removeClass('notice-info notice-success')
						.addClass('notice-error')
						.html('<p>Error: ' + errorThrown + '</p>');
				},
				complete: function() {
					$button.prop('disabled', false).removeClass('informatiq-sp-loading');

					// Hide status message after 5 seconds
					setTimeout(function() {
						$status.fadeOut();
					}, 5000);
				}
			});
		},

		/**
		 * Handle revoke authorization button click
		 */
		handleRevokeAuth: function(e) {
			e.preventDefault();

			var $button = $(this);

			// Confirm action
			if (!confirm(informatiqSP.strings.revokeConfirm || 'Are you sure you want to revoke Google authorization?')) {
				return;
			}

			// Disable button and show loading state
			$button.prop('disabled', true).text(informatiqSP.strings.revokeInProgress || 'Revoking...');

			// Make AJAX request
			$.ajax({
				url: informatiqSP.ajaxUrl,
				type: 'POST',
				data: {
					action: 'informatiq_sp_revoke_auth',
					nonce: informatiqSP.nonce
				},
				success: function(response) {
					if (response.success) {
						// Reload page to show updated status
						location.reload();
					} else {
						alert('Error: ' + (response.data.message || 'Unknown error'));
						$button.prop('disabled', false).text('Revoke Authorization');
					}
				},
				error: function(jqXHR, textStatus, errorThrown) {
					alert('Error: ' + errorThrown);
					$button.prop('disabled', false).text('Revoke Authorization');
				}
			});
		},

		// Store comparison data for pagination and bulk updates.
		comparisonData: null,
		currentPage: 1,
		perPage: 50,

		/**
		 * Handle compare products button click
		 */
		handleCompareProducts: function(e) {
			e.preventDefault();

			var self = InformatiqSP;
			var $button = $(this);
			var $spinner = $button.next('.spinner');
			var $results = $('#informatiq-sp-comparison-results');
			var $status = $('#informatiq-sp-sync-status');

			// Show loading status
			$status
				.removeClass('notice-success notice-error')
				.addClass('notice-info')
				.html('<p><strong>Loading price insights from Google...</strong> This may take a moment.</p>')
				.show();

			$button.prop('disabled', true);
			$spinner.addClass('is-active');

			$.ajax({
				url: informatiqSP.ajaxUrl,
				type: 'POST',
				timeout: 180000, // 3 minute timeout
				data: {
					action: 'informatiq_sp_compare_products',
					nonce: informatiqSP.nonce
				},
				success: function(response) {
					console.log('Price insights response:', response);
					$status.hide();

					if (response.success) {
						self.comparisonData = response.data;
						self.currentPage = 1;
						self.renderComparison();
						$results.show();
					} else {
						$status
							.removeClass('notice-info notice-success')
							.addClass('notice-error')
							.html('<p>Error: ' + (response.data.message || 'Unknown error') + '</p>')
							.show();
					}
				},
				error: function(jqXHR, textStatus, errorThrown) {
					console.error('AJAX error:', textStatus, errorThrown);
					$status
						.removeClass('notice-info notice-success')
						.addClass('notice-error')
						.html('<p>Error: ' + errorThrown + '</p>')
						.show();
				},
				complete: function() {
					$button.prop('disabled', false);
					$spinner.removeClass('is-active');
				}
			});
		},

		/**
		 * Render comparison table with pagination
		 */
		renderComparison: function() {
			var self = this;
			var data = this.comparisonData;
			var $tbody = $('#informatiq-sp-comparison-tbody');
			var $summary = $('#informatiq-sp-comparison-summary');
			var $pagination = $('#informatiq-sp-pagination');

			if (!data || !data.products) return;

			var products = data.products;
			var totalPages = Math.ceil(products.length / this.perPage);
			var start = (this.currentPage - 1) * this.perPage;
			var end = start + this.perPage;
			var pageProducts = products.slice(start, end);

			// Stats
			var stats = {
				total: products.length,
				withInsight: 0,
				canIncrease: 0,
				shouldDecrease: 0,
				totalPotentialGain: 0
			};

			products.forEach(function(p) {
				if (p.has_insight) {
					stats.withInsight++;
					if (p.potential_gain > 0) {
						stats.canIncrease++;
						stats.totalPotentialGain += p.potential_gain;
					} else if (p.potential_gain < 0) {
						stats.shouldDecrease++;
					}
				}
			});

			// Render summary
			var summaryHtml = '<strong>Summary:</strong> ' + stats.withInsight + ' of ' + stats.total + ' products have Google price insights. ';
			summaryHtml += '<span style="color:#00a32a;">' + stats.canIncrease + ' can increase price</span>, ';
			summaryHtml += '<span style="color:#d63638;">' + stats.shouldDecrease + ' should decrease price</span>. ';
			if (stats.totalPotentialGain > 0) {
				summaryHtml += '<br><strong style="color:#00a32a;">Total potential gain: +' + data.currency + stats.totalPotentialGain.toFixed(2) + ' per sale cycle</strong>';
			}
			$summary.html(summaryHtml);

			// Render table rows
			var html = '';
			if (pageProducts.length === 0) {
				html = '<tr><td colspan="9">No products found.</td></tr>';
			} else {
				pageProducts.forEach(function(product) {
					var localPrice = product.local_price ? data.currency + parseFloat(product.local_price).toFixed(2) : '-';
					var suggestedPrice = product.suggested_price ? data.currency + parseFloat(product.suggested_price).toFixed(2) : '-';
					var priceLabel = product.price_type === 'sale' ? ' <small>(sale)</small>' : '';

					// Gain/loss styling
					var gainHtml = '-';
					var gainStyle = '';
					if (product.potential_gain !== null) {
						var gain = parseFloat(product.potential_gain);
						if (gain > 0) {
							gainHtml = '+' + data.currency + gain.toFixed(2);
							gainStyle = 'color: #00a32a; font-weight: bold;';
						} else if (gain < 0) {
							gainHtml = '-' + data.currency + Math.abs(gain).toFixed(2);
							gainStyle = 'color: #d63638;';
						} else {
							gainHtml = data.currency + '0.00';
						}
					}

					// Predicted changes
					var imprChange = product.predicted_impressions_change !== null
						? (product.predicted_impressions_change > 0 ? '+' : '') + product.predicted_impressions_change.toFixed(1) + '%'
						: '-';
					var clickChange = product.predicted_clicks_change !== null
						? (product.predicted_clicks_change > 0 ? '+' : '') + product.predicted_clicks_change.toFixed(1) + '%'
						: '-';
					var convChange = product.predicted_conversions_change !== null
						? (product.predicted_conversions_change > 0 ? '+' : '') + product.predicted_conversions_change.toFixed(1) + '%'
						: '-';

					var imprStyle = product.predicted_impressions_change > 0 ? 'color:#00a32a;' : (product.predicted_impressions_change < 0 ? 'color:#d63638;' : '');
					var clickStyle = product.predicted_clicks_change > 0 ? 'color:#00a32a;' : (product.predicted_clicks_change < 0 ? 'color:#d63638;' : '');
					var convStyle = product.predicted_conversions_change > 0 ? 'color:#00a32a;' : (product.predicted_conversions_change < 0 ? 'color:#d63638;' : '');

					// Checkbox and action button
					var checkbox = product.has_insight && product.should_update
						? '<input type="checkbox" class="informatiq-sp-select-product" data-product-id="' + product.id + '" data-new-price="' + product.suggested_price + '">'
						: '';
					var actionBtn = product.has_insight && product.should_update
						? '<button type="button" class="button button-small informatiq-sp-update-single" data-product-id="' + product.id + '" data-new-price="' + product.suggested_price + '">Update</button>'
						: '-';

					html += '<tr>';
					html += '<td>' + checkbox + '</td>';
					html += '<td><a href="post.php?post=' + product.id + '&action=edit" title="SKU: ' + product.sku + '">' + self.truncate(product.name, 40) + '</a></td>';
					html += '<td>' + localPrice + priceLabel + '</td>';
					html += '<td>' + suggestedPrice + '</td>';
					html += '<td style="' + gainStyle + '">' + gainHtml + '</td>';
					html += '<td style="' + imprStyle + '">' + imprChange + '</td>';
					html += '<td style="' + clickStyle + '">' + clickChange + '</td>';
					html += '<td style="' + convStyle + '">' + convChange + '</td>';
					html += '<td>' + actionBtn + '</td>';
					html += '</tr>';
				});
			}

			$tbody.html(html);

			// Render pagination
			if (totalPages > 1) {
				var paginationHtml = '<span>Page ' + this.currentPage + ' of ' + totalPages + '</span> ';
				if (this.currentPage > 1) {
					paginationHtml += '<button type="button" class="button button-small informatiq-sp-page" data-page="' + (this.currentPage - 1) + '">&laquo; Prev</button> ';
				}
				if (this.currentPage < totalPages) {
					paginationHtml += '<button type="button" class="button button-small informatiq-sp-page" data-page="' + (this.currentPage + 1) + '">Next &raquo;</button>';
				}
				$pagination.html(paginationHtml).show();
			} else {
				$pagination.hide();
			}

			// Bind events for this page
			self.bindComparisonEvents();
		},

		/**
		 * Truncate text
		 */
		truncate: function(str, len) {
			if (!str) return '';
			return str.length > len ? str.substring(0, len) + '...' : str;
		},

		/**
		 * Bind comparison table events
		 */
		bindComparisonEvents: function() {
			var self = this;

			// Single update buttons
			$('.informatiq-sp-update-single').off('click').on('click', function() {
				var $btn = $(this);
				var productId = $btn.data('product-id');
				var newPrice = $btn.data('new-price');

				$btn.prop('disabled', true).text('Updating...');

				$.ajax({
					url: informatiqSP.ajaxUrl,
					type: 'POST',
					data: {
						action: 'informatiq_sp_update_price',
						nonce: informatiqSP.nonce,
						product_id: productId,
						new_price: newPrice
					},
					success: function(response) {
						if (response.success) {
							$btn.text('Done!').addClass('button-primary');
							$btn.closest('tr').css('background-color', '#d4edda');
						} else {
							alert('Error: ' + response.data.message);
							$btn.prop('disabled', false).text('Update');
						}
					},
					error: function() {
						alert('Request failed');
						$btn.prop('disabled', false).text('Update');
					}
				});
			});

			// Pagination
			$('.informatiq-sp-page').off('click').on('click', function() {
				self.currentPage = $(this).data('page');
				self.renderComparison();
				$('html, body').animate({ scrollTop: $('#informatiq-sp-comparison-results').offset().top - 50 }, 200);
			});

			// Select all checkboxes
			$('#informatiq-sp-select-all, #informatiq-sp-select-all-header').off('change').on('change', function() {
				var checked = $(this).prop('checked');
				$('.informatiq-sp-select-product').prop('checked', checked);
				$('#informatiq-sp-select-all, #informatiq-sp-select-all-header').prop('checked', checked);
				self.updateBulkButton();
			});

			// Individual checkbox
			$('.informatiq-sp-select-product').off('change').on('change', function() {
				self.updateBulkButton();
			});

			// Bulk update button
			$('#informatiq-sp-bulk-update').off('click').on('click', function() {
				self.handleBulkUpdate();
			});
		},

		/**
		 * Update bulk button state
		 */
		updateBulkButton: function() {
			var count = $('.informatiq-sp-select-product:checked').length;
			$('#informatiq-sp-bulk-update').prop('disabled', count === 0).text('Bulk Update Selected (' + count + ')');
		},

		/**
		 * Handle bulk update
		 */
		handleBulkUpdate: function() {
			var updates = [];
			$('.informatiq-sp-select-product:checked').each(function() {
				updates.push({
					product_id: $(this).data('product-id'),
					new_price: $(this).data('new-price')
				});
			});

			if (updates.length === 0) return;

			if (!confirm('Update prices for ' + updates.length + ' products?')) return;

			var $btn = $('#informatiq-sp-bulk-update');
			$btn.prop('disabled', true).text('Updating...');

			$.ajax({
				url: informatiqSP.ajaxUrl,
				type: 'POST',
				data: {
					action: 'informatiq_sp_bulk_update_prices',
					nonce: informatiqSP.nonce,
					updates: updates
				},
				success: function(response) {
					if (response.success) {
						alert(response.data.message);
						location.reload();
					} else {
						alert('Error: ' + response.data.message);
						$btn.prop('disabled', false).text('Bulk Update Selected');
					}
				},
				error: function() {
					alert('Request failed');
					$btn.prop('disabled', false).text('Bulk Update Selected');
				}
			});
		},

	};

	// Initialize when document is ready
	$(document).ready(function() {
		InformatiqSP.init();
	});

})(jQuery);