#!/usr/bin/env php
<?php

if (file_exists(__DIR__ . '/../vendor/autoload.php')) {
require __DIR__ . '/../vendor/autoload.php';
} elseif (file_exists(__DIR__ . '/../../../autoload.php')) {
require __DIR__ . '/../../../autoload.php';
} elseif (file_exists(__DIR__ . '/../autoload.php')) {
require __DIR__ . '/../autoload.php';
} else {
throw new RuntimeException('Unable to locate autoload.php file.');
}

use JmesPath\Env;
use JmesPath\DebugRuntime;

$description = <<<EOT
Runs a JMESPath expression on the provided input or a test case.

Provide the JSON input and expression:
echo '{}' | jp.php expression

Or provide the path to a compliance script, a suite, and test case number:
jp.php --script path_to_script --suite test_suite_number --case test_case_number [expression]

EOT;

$args = [];
$currentKey = null;
for ($i = 1, $total = count($argv); $i < $total; $i++) {
if ($i % 2) {
if (substr($argv[$i], 0, 2) == '--') {
$currentKey = str_replace('--', '', $argv[$i]);
} else {
$currentKey = trim($argv[$i]);
}
} else {
$args[$currentKey] = $argv[$i];
$currentKey = null;
}
}

$expression = $currentKey;

if (isset($args['file']) || isset($args['suite']) || isset($args['case'])) {
if (!isset($args['file']) || !isset($args['suite']) || !isset($args['case'])) {
die($description);
}
// Manually run a compliance test
$path = realpath($args['file']);
file_exists($path) or die('File not found at ' . $path);
$json = json_decode(file_get_contents($path), true);
$set = $json[$args['suite']];
$data = $set['given'];
if (!isset($expression)) {
$expression = $set['cases'][$args['case']]['expression'];
echo "Expects\n=======\n";
if (isset($set['cases'][$args['case']]['result'])) {
echo json_encode($set['cases'][$args['case']]['result'], JSON_PRETTY_PRINT) . "\n\n";
} elseif (isset($set['cases'][$args['case']]['error'])) {
echo "{$set['cases'][$argv['case']]['error']} error\n\n";
} else {
echo "NULL\n\n";
}
}
} elseif (isset($expression)) {
// Pass in an expression and STDIN as a standalone argument
$data = json_decode(stream_get_contents(STDIN), true);
} else {
die($description);
}

$runtime = new DebugRuntime(Env::createRuntime());
$runtime($expression, $data);