<?php
// Claude Sync Endpoint — receives transcripts + documents from Claude sessions
header("Content-Type: application/json");
$action = $_GET['action'] ?? '';
$dest = "/var/www/weval/claude-sync/";

if ($action === 'upload') {
    $type = $_GET['type'] ?? 'outputs';  // transcripts|outputs|uploads
    $name = basename($_GET['name'] ?? 'file_'.time());
    $dir = $dest . ($type === 'transcripts' ? 'transcripts/' : ($type === 'uploads' ? 'uploads/' : 'outputs/'));
    @mkdir($dir, 0755, true);
    $raw = file_get_contents("php://input");
    if (strlen($raw) > 10) {
        file_put_contents($dir . $name, $raw, FILE_APPEND);
        echo json_encode(["ok"=>true, "file"=>$name, "size"=>filesize($dir.$name)]);
    } else {
        echo json_encode(["error"=>"no data"]);
    }
} elseif ($action === 'clear') {
    $name = basename($_GET['name'] ?? '');
    $type = $_GET['type'] ?? 'outputs';
    $dir = $dest . ($type === 'transcripts' ? 'transcripts/' : 'outputs/');
    @unlink($dir . $name);
    echo json_encode(["ok"=>true, "cleared"=>$name]);
} elseif ($action === 'list') {
    $result = [];
    foreach(['transcripts','outputs','uploads'] as $sub) {
        $dir = $dest . $sub . '/';
        $files = [];
        if (is_dir($dir)) {
            foreach(scandir($dir) as $f) {
                if ($f[0] !== '.') $files[] = ["name"=>$f, "size"=>filesize($dir.$f), "modified"=>filemtime($dir.$f)];
            }
        }
        $result[$sub] = $files;
    }
    echo json_encode($result, JSON_PRETTY_PRINT);
} else {
    echo json_encode(["endpoints"=>[
        "?action=list" => "List all synced files",
        "?action=upload&type=transcripts&name=xxx" => "Upload file (POST body)",
        "?action=clear&type=outputs&name=xxx" => "Delete file"
    ]]);
}