#!/usr/bin/php
<?php
// Reads settings.json (if present) and prints extra llama.cpp flags.
// Supports both OpenAI-style and llama.cpp-style names.
// Example settings.json:
// {
//   "flags": {
//     "temperature": 0.7,
//     "max_output_tokens": 256,
//     "top_p": 0.9,
//     "repeat_penalty": 1.1,
//     "seed": 42,
//     "mirostat": 2
//   },
//   "raw": ["--no-penalize-nl"]
// }

if (!file_exists($argv[1])) {
    // No settings file -> no extra flags
    exit(0);
}

$json = json_decode(file_get_contents($argv[1]), true);
if (!is_array($json)) {
    fwrite(STDERR, $argv[1]." is not valid JSON\n");
    exit(0);
}


// Map high-level keys to llama.cpp flags.
// Add more as needed.
$map = [
    'temperature'       => '--temp',
    'temp'              => '--temp',
    'max_output_tokens' => '-n',
    'n_predict'         => '-n',
    'top_p'             => '--top-p',
    'top_k'             => '--top-k',
    'repeat_penalty'    => '--repeat-penalty',
    'presence_penalty'  => '--presence-penalty',
    'frequency_penalty' => '--frequency-penalty',
    'seed'              => '--seed',
    'ctx'               => '-c',
    'context_size'      => '-c',
    'mirostat'          => '--mirostat',
    'mirostat_tau'      => '--mirostat-tau',
    'mirostat_eta'      => '--mirostat-eta',
];

$out = [];
// Structured flags
foreach ($json as $key => $val) {
    $k = $key;
    if (!isset($map[$k])) {
        // Unknown key: ignore silently (or push to raw if you prefer)
        continue;
    }
    $flag = $map[$k];

    // Boolean flags: include only when true
    if (is_bool($val)) {
        if ($val) $out[] = $flag;
        continue;
    }

    // Everything else: flag + value
    // Use escapeshellarg for safety
    $out[] = $flag . ' ' . escapeshellarg((string)$val);
}


// Print as a single line for easy inclusion in Makefile pipeline
echo implode(' ', $out);