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| 1 | <?php |
| 2 | /** |
| 3 | * REST API Reports Tax Rate Breakdown controller class. |
| 4 | * |
| 5 | * @package Automattic\Jetpack\PremiumAnalytics\Reports\Export\Exports |
| 6 | */ |
| 7 | |
| 8 | declare( strict_types=1 ); |
| 9 | |
| 10 | namespace Automattic\Jetpack\PremiumAnalytics\Reports\Export\Exports; |
| 11 | |
| 12 | defined( 'ABSPATH' ) || exit; |
| 13 | |
| 14 | use Automattic\Jetpack\PremiumAnalytics\Reports\Export\Abstract_Csv_Report_Controller; |
| 15 | use Automattic\Jetpack\PremiumAnalytics\Reports\Export\Report_Data_Fetcher; |
| 16 | |
| 17 | /** |
| 18 | * Tax Rate Breakdown CSV Export Controller. |
| 19 | * |
| 20 | * Handles CSV exports for the Tax Rate Breakdown report, showing individual |
| 21 | * tax rates with their totals over a period. |
| 22 | * Note: This is a ranked list report, not a time-series report. |
| 23 | * Comparison mode is supported using ID-based merging (matching by tax_rate_id). |
| 24 | * |
| 25 | * @since $$next-version$$ |
| 26 | */ |
| 27 | class Tax_Rate_Breakdown_Controller extends Abstract_Csv_Report_Controller { |
| 28 | |
| 29 | /** |
| 30 | * Cache for tax rate percentages by tax_rate_id. |
| 31 | * |
| 32 | * @var array<int, float|null> |
| 33 | */ |
| 34 | private $tax_rates_cache = array(); |
| 35 | |
| 36 | /** |
| 37 | * Get the report key for this controller. |
| 38 | * |
| 39 | * @return string The report key. |
| 40 | */ |
| 41 | public function get_report_key(): string { |
| 42 | return 'taxratebreakdown'; |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Get the report label for this controller. |
| 47 | * |
| 48 | * @return string The report label. |
| 49 | */ |
| 50 | public function get_report_label(): string { |
| 51 | return __( 'Tax Rate Breakdown', 'jetpack-premium-analytics' ); |
| 52 | } |
| 53 | |
| 54 | /** |
| 55 | * Get the data endpoint for this controller. |
| 56 | * |
| 57 | * @return string The data endpoint. |
| 58 | */ |
| 59 | public function get_data_endpoint(): string { |
| 60 | return 'reports/taxes/breakdown'; |
| 61 | } |
| 62 | |
| 63 | /** |
| 64 | * Get the column headers for this controller. |
| 65 | * |
| 66 | * @param string|null $interval Optional time interval for dynamic headers. |
| 67 | * @return array The column headers. |
| 68 | */ |
| 69 | public function get_column_headers( ?string $interval = null ): array { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- Signature required by the report controller interface. |
| 70 | return array( |
| 71 | 'tax_code' => __( 'Tax code', 'jetpack-premium-analytics' ), |
| 72 | 'rate' => __( 'Rate', 'jetpack-premium-analytics' ), |
| 73 | 'total_tax' => __( 'Total tax', 'jetpack-premium-analytics' ), |
| 74 | 'order_tax' => __( 'Order tax', 'jetpack-premium-analytics' ), |
| 75 | 'shipping_tax' => __( 'Shipping tax', 'jetpack-premium-analytics' ), |
| 76 | 'orders' => __( 'Orders', 'jetpack-premium-analytics' ), |
| 77 | ); |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * Format a row for CSV export. |
| 82 | * |
| 83 | * Empty rows (empty tax code/name) are handled by the parent via get_empty_row_check_field() |
| 84 | * and get_empty_row_label(); do not skip them here. |
| 85 | * |
| 86 | * @param array $item The row data. |
| 87 | * @param string|null $interval Optional time interval for formatting. |
| 88 | * @return array The formatted row. |
| 89 | */ |
| 90 | public function format_row_for_csv( array $item, ?string $interval = null ): array { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- Signature required by the report controller interface. |
| 91 | $defaults = $this->get_default_values(); |
| 92 | |
| 93 | // Get tax_rate_id for lookups. |
| 94 | $tax_rate_id = (int) ( $item['tax_rate_id'] ?? $defaults['tax_rate_id'] ); |
| 95 | |
| 96 | // Get tax rate, falling back to WooCommerce lookup if missing from API response. |
| 97 | // Use array_key_exists to distinguish between missing key and explicit 0 value. |
| 98 | if ( array_key_exists( 'tax_rate', $item ) ) { |
| 99 | $tax_rate = $item['tax_rate']; |
| 100 | } elseif ( ! empty( $tax_rate_id ) ) { |
| 101 | $tax_rate = $this->get_tax_rate_percent( $tax_rate_id ); |
| 102 | } else { |
| 103 | $tax_rate = $defaults['tax_rate']; |
| 104 | } |
| 105 | |
| 106 | return array( |
| 107 | 'tax_code' => $item['tax_rate_code'] ?? $defaults['tax_rate_code'], |
| 108 | 'rate' => $this->format_percentage( $tax_rate ), |
| 109 | 'total_tax' => self::format_amount( $item['total_tax'] ?? $defaults['total_tax'] ), |
| 110 | 'order_tax' => self::format_amount( $item['order_tax'] ?? $defaults['order_tax'] ), |
| 111 | 'shipping_tax' => self::format_amount( $item['shipping_tax'] ?? $defaults['shipping_tax'] ), |
| 112 | 'orders' => $item['orders_count'] ?? $defaults['orders_count'], |
| 113 | ); |
| 114 | } |
| 115 | |
| 116 | /** |
| 117 | * Get tax rate percentage from WooCommerce, with caching. |
| 118 | * |
| 119 | * Retrieves the tax rate percentage for a given tax_rate_id using WC_Tax::get_rate_percent_value(). |
| 120 | * Results are cached in memory for the duration of the export to avoid repeated database queries. |
| 121 | * Returns null if WooCommerce is unavailable or the tax rate ID doesn't exist in the database. |
| 122 | * |
| 123 | * @param int $tax_rate_id The tax rate ID. |
| 124 | * @return float|null The tax rate percentage, or null if not found. |
| 125 | */ |
| 126 | private function get_tax_rate_percent( int $tax_rate_id ): ?float { |
| 127 | if ( ! array_key_exists( $tax_rate_id, $this->tax_rates_cache ) ) { |
| 128 | if ( ! class_exists( \WC_Tax::class ) ) { |
| 129 | $this->tax_rates_cache[ $tax_rate_id ] = null; |
| 130 | return $this->tax_rates_cache[ $tax_rate_id ]; |
| 131 | } |
| 132 | |
| 133 | $tax_rate_code = \WC_Tax::get_rate_code( $tax_rate_id ); |
| 134 | if ( empty( $tax_rate_code ) ) { |
| 135 | $this->tax_rates_cache[ $tax_rate_id ] = null; |
| 136 | return $this->tax_rates_cache[ $tax_rate_id ]; |
| 137 | } |
| 138 | |
| 139 | $this->tax_rates_cache[ $tax_rate_id ] = \WC_Tax::get_rate_percent_value( $tax_rate_id ); |
| 140 | } |
| 141 | return $this->tax_rates_cache[ $tax_rate_id ]; |
| 142 | } |
| 143 | |
| 144 | /** |
| 145 | * Format a percentage value for CSV display. |
| 146 | * |
| 147 | * Formats as "10.00%" with two decimal places. |
| 148 | * Handles negative values by taking absolute value (tax rates should always be positive). |
| 149 | * Returns "N/A" when the value is null (rate unavailable from both API and WooCommerce). |
| 150 | * |
| 151 | * @param float|int|null $value The percentage value to format. |
| 152 | * @return string The formatted percentage or "N/A". |
| 153 | */ |
| 154 | private function format_percentage( $value ): string { |
| 155 | if ( null === $value ) { |
| 156 | return 'N/A'; |
| 157 | } |
| 158 | return number_format( abs( (float) $value ), 2, '.', '' ) . '%'; |
| 159 | } |
| 160 | |
| 161 | /** |
| 162 | * Get default values for missing data fields. |
| 163 | * |
| 164 | * @return array Array of field_name => default_value pairs. |
| 165 | */ |
| 166 | public function get_default_values(): array { |
| 167 | return array( |
| 168 | 'tax_rate_id' => 0, |
| 169 | 'tax_rate_code' => '', |
| 170 | 'tax_rate' => null, |
| 171 | 'total_tax' => 0, |
| 172 | 'order_tax' => 0, |
| 173 | 'shipping_tax' => 0, |
| 174 | 'orders_count' => 0, |
| 175 | ); |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Get the list of API fields needed for this report. |
| 180 | * |
| 181 | * @return array |
| 182 | */ |
| 183 | public function get_fields(): array { |
| 184 | return array( |
| 185 | 'tax_rate_id', |
| 186 | 'tax_rate_code', |
| 187 | 'total_tax', |
| 188 | 'order_tax', |
| 189 | 'shipping_tax', |
| 190 | 'orders_count', |
| 191 | ); |
| 192 | } |
| 193 | |
| 194 | /** |
| 195 | * Format a row with comparison, ensuring the comparison tax code matches the original. |
| 196 | * |
| 197 | * For the same tax rate (same row), the tax code label is identical in both periods. |
| 198 | * After the parent adds comparison columns, we set comparison_tax_code to the same |
| 199 | * value as tax_code so the label column is consistent. |
| 200 | * |
| 201 | * @param array $item The raw data item (merged original + comparison). |
| 202 | * @param string|null $interval Optional time interval for formatting. |
| 203 | * @return array The formatted row with comparison fields. |
| 204 | */ |
| 205 | public function format_row_with_comparison( array $item, ?string $interval = null ): array { |
| 206 | $row = parent::format_row_with_comparison( $item, $interval ); |
| 207 | |
| 208 | $prefix = Report_Data_Fetcher::COMPARISON_INDEX_PREFIX; |
| 209 | $key = $prefix . 'tax_code'; |
| 210 | if ( isset( $row['tax_code'] ) && isset( $row[ $key ] ) ) { |
| 211 | $row[ $key ] = $row['tax_code']; |
| 212 | } |
| 213 | |
| 214 | return $row; |
| 215 | } |
| 216 | |
| 217 | /** |
| 218 | * Get the matching field for comparison data alignment. |
| 219 | * |
| 220 | * Tax Rate Breakdown is a ranked report, so comparison data should be matched by tax_rate_id. |
| 221 | * |
| 222 | * @return string|null |
| 223 | */ |
| 224 | public function get_matching_field(): ?string { |
| 225 | return 'tax_rate_id'; |
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * Get the identifying fields that should be preserved in comparison data. |
| 230 | * |
| 231 | * When a tax rate exists in the original period but not in the comparison period, |
| 232 | * the tax code should still be shown for clarity. tax_rate_code is the field the |
| 233 | * taxes/breakdown endpoint actually returns (name/country/state/priority are not |
| 234 | * part of its schema). |
| 235 | * |
| 236 | * @return array Array of field names to preserve. |
| 237 | */ |
| 238 | public function get_identifying_fields(): array { |
| 239 | return array( 'tax_rate_code' ); |
| 240 | } |
| 241 | |
| 242 | /** |
| 243 | * Get the field name to check for emptiness. |
| 244 | * |
| 245 | * Enables parent empty row handling: rows with an empty tax code are either skipped |
| 246 | * or included with the customizable empty row label (e.g. "Unassigned"). Uses |
| 247 | * tax_rate_code, the field the endpoint returns and the one displayed as the tax code. |
| 248 | * |
| 249 | * @return array The field names to check. |
| 250 | */ |
| 251 | public function get_empty_row_check_field() { |
| 252 | return array( 'tax_rate_code' ); |
| 253 | } |
| 254 | |
| 255 | /** |
| 256 | * Apply the custom empty row label to the formatted row. |
| 257 | * |
| 258 | * Overridden because the API field is 'name' but the CSV column is 'tax_code'. |
| 259 | * |
| 260 | * @param array $row The formatted row data. |
| 261 | * @param array $check_fields The field names that were empty. |
| 262 | * @return array The row with custom label applied. |
| 263 | */ |
| 264 | protected function apply_empty_row_label( array $row, array $check_fields ): array { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable -- Signature required by the report controller interface. |
| 265 | $custom_label = $this->get_empty_row_label(); |
| 266 | if ( isset( $row['tax_code'] ) && '' === $row['tax_code'] ) { |
| 267 | $row['tax_code'] = $custom_label; |
| 268 | } |
| 269 | return $row; |
| 270 | } |
| 271 | } |