<?php
/**
 * Synology Autonomous Architect - Deep Migration & Repair Tool
 * Target: dda/assets.db
 * Function: Fix Mojibake/URL-encoding in names & Apply latest schema
 */

header('Content-Type: text/plain; charset=utf-8');

try {
    $dbPath = __DIR__ . DIRECTORY_SEPARATOR . 'dda' . DIRECTORY_SEPARATOR . 'assets.db';
    if (!file_exists($dbPath)) {
        throw new Exception("File not found at $dbPath");
    }

    $db = new PDO("sqlite:$dbPath");
    $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    echo "--- 🛠 심층 마이그레이션 및 데이터 복구 시작 ---\n";

    // 1. 스키마 강제 보정
    $newColumns = [
        'disposal_recipient' => 'TEXT',
        'disposal_date' => 'TEXT',
        'real_user' => 'TEXT',
        'disposal_user_id' => 'INTEGER'
    ];
    foreach ($newColumns as $col => $type) {
        try {
            $db->exec("ALTER TABLE laptop_assets ADD COLUMN $col $type");
            echo "✅ 컬럼 보정: $col\n";
        } catch (PDOException $e) {
            // Already exists or other error
        }
    }

    // 2. 인코딩 복구 (URL-Encoded 데이터가 식별되어 수정 시도)
    $stmt = $db->query("SELECT id, assigned_user_name, disposal_recipient FROM laptop_assets");
    $assets = $stmt->fetchAll(PDO::FETCH_ASSOC);

    $fixCount = 0;
    $updateStmt = $db->prepare("UPDATE laptop_assets SET assigned_user_name = ?, disposal_recipient = ? WHERE id = ?");

    foreach ($assets as $asset) {
        $uName = $asset['assigned_user_name'];
        $dRec = $asset['disposal_recipient'];

        $newUName = $uName;
        $newDRec = $dRec;

        // URL 인코딩 탐지 및 변환
        if ($uName && strpos($uName, '%') !== false) {
            $newUName = urldecode($uName);
        }
        if ($dRec && strpos($dRec, '%') !== false) {
            $newDRec = urldecode($dRec);
        }

        if ($newUName !== $uName || $newDRec !== $dRec) {
            $updateStmt->execute([$newUName, $newDRec, $asset['id']]);
            $fixCount++;
        }
    }
    echo "✅ Mojibake/URL-Encoding 데이터 복구: {$fixCount}건 수정 완료.\n";

    // 3. STOCK 자산 명칙 동기화
    $stmtStock = $db->prepare("UPDATE laptop_assets SET assigned_user_name = '업무용(TEMP_44666b)', current_user_id = NULL WHERE status = 'stock'");
    $stmtStock->execute();
    echo "✅ 재고(STOCK) 명칭 동기화 완료.\n";

    echo "--- 🎉 모든 복구 및 마이그레이션이 완료되었습니다. ---";

} catch (Exception $e) {
    echo "❌ 오류: " . $e->getMessage() . "\n";
}
?>