1f81d98c52
Complete port of all 163 API endpoints from Lucee/CFML to PHP 8.3. Shared helpers in api/helpers.php (DB, auth, request/response, security). PDO prepared statements throughout. Same JSON response shapes as CFML.
133 lines
4.6 KiB
PHP
133 lines
4.6 KiB
PHP
<?php
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require_once __DIR__ . '/../helpers.php';
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runAuth();
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/**
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* Look up tax rate by ZIP code
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* Uses Zippopotam.us for city/state, then Claude API for exact rate.
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*
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* GET: ?zip=90001
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*/
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$response = ['OK' => false, 'taxRate' => 0, 'message' => '', 'city' => '', 'state' => ''];
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try {
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// Load Claude API key
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$CLAUDE_API_KEY = '';
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$configPath = __DIR__ . '/../../config/claude.json';
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if (file_exists($configPath)) {
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$configData = json_decode(file_get_contents($configPath), true);
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$CLAUDE_API_KEY = $configData['apiKey'] ?? '';
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}
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// Get ZIP code
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$zipCode = trim($_GET['zip'] ?? $_POST['zip'] ?? '');
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// Validate ZIP format
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if (!preg_match('/^\d{5}(-\d{4})?$/', $zipCode)) {
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$response['message'] = 'Invalid ZIP code format';
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jsonResponse($response);
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}
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$zipCode = substr($zipCode, 0, 5);
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// Zippopotam.us lookup
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$ch = curl_init("https://api.zippopotam.us/us/$zipCode");
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curl_setopt_array($ch, [
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_TIMEOUT => 10,
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]);
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$zipResult = curl_exec($ch);
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$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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if ($httpCode !== 200) {
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$response['message'] = 'ZIP lookup failed';
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jsonResponse($response);
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}
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$zipData = json_decode($zipResult, true);
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if (empty($zipData['places'][0])) {
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$response['message'] = 'No location data for ZIP';
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jsonResponse($response);
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}
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$place = $zipData['places'][0];
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$cityName = $place['place name'] ?? '';
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$stateAbbr = strtoupper($place['state abbreviation'] ?? '');
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$response['city'] = $cityName;
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$response['state'] = $stateAbbr;
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// State base rates fallback
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$stateTaxRates = [
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'AL' => 4, 'AK' => 0, 'AZ' => 5.6, 'AR' => 6.5, 'CA' => 7.25,
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'CO' => 2.9, 'CT' => 6.35, 'DE' => 0, 'FL' => 6, 'GA' => 4,
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'HI' => 4, 'ID' => 6, 'IL' => 6.25, 'IN' => 7, 'IA' => 6,
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'KS' => 6.5, 'KY' => 6, 'LA' => 4.45, 'ME' => 5.5, 'MD' => 6,
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'MA' => 6.25, 'MI' => 6, 'MN' => 6.875, 'MS' => 7, 'MO' => 4.225,
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'MT' => 0, 'NE' => 5.5, 'NV' => 6.85, 'NH' => 0, 'NJ' => 6.625,
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'NM' => 4.875, 'NY' => 4, 'NC' => 4.75, 'ND' => 5, 'OH' => 5.75,
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'OK' => 4.5, 'OR' => 0, 'PA' => 6, 'RI' => 7, 'SC' => 6,
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'SD' => 4.2, 'TN' => 7, 'TX' => 6.25, 'UT' => 6.1, 'VT' => 6,
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'VA' => 5.3, 'WA' => 6.5, 'WV' => 6, 'WI' => 5, 'WY' => 4, 'DC' => 6,
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];
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if (empty($CLAUDE_API_KEY)) {
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if (isset($stateTaxRates[$stateAbbr])) {
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$response['taxRate'] = $stateTaxRates[$stateAbbr];
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$response['OK'] = true;
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$response['message'] = 'State base rate only (no API key)';
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}
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jsonResponse($response);
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}
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// Ask Claude for exact tax rate
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$requestBody = json_encode([
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'model' => 'claude-sonnet-4-20250514',
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'max_tokens' => 100,
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'temperature' => 0,
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'messages' => [[
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'role' => 'user',
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'content' => "What is the current combined sales tax rate (state + county + city + special districts) for $cityName, $stateAbbr (ZIP code $zipCode)? Return ONLY a single number representing the percentage, like 10.25 for 10.25%. No text, no explanation, just the number.",
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]],
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]);
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$ch = curl_init('https://api.anthropic.com/v1/messages');
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curl_setopt_array($ch, [
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_TIMEOUT => 30,
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CURLOPT_POST => true,
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CURLOPT_POSTFIELDS => $requestBody,
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CURLOPT_HTTPHEADER => [
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'Content-Type: application/json',
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"x-api-key: $CLAUDE_API_KEY",
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'anthropic-version: 2023-06-01',
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],
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]);
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$claudeResult = curl_exec($ch);
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$claudeHttpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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if ($claudeHttpCode === 200) {
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$claudeResponse = json_decode($claudeResult, true);
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if (!empty($claudeResponse['content'][0]['text'])) {
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$rateText = trim($claudeResponse['content'][0]['text']);
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$rateText = preg_replace('/[^0-9.]/', '', $rateText);
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$rateVal = (float)$rateText;
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if ($rateVal > 0 && $rateVal < 20) {
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$response['taxRate'] = $rateVal;
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$response['OK'] = true;
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$response['message'] = "Tax rate for $cityName, $stateAbbr";
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} else {
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$response['message'] = 'Could not parse tax rate';
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}
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}
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} else {
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$response['message'] = 'Claude API error';
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}
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} catch (Exception $e) {
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$response['message'] = 'Error: ' . $e->getMessage();
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}
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jsonResponse($response);
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