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

declare(strict_types=1);

require dirname(__DIR__) . '/vendor/autoload.php';

$dotenv = Dotenv\Dotenv::createImmutable(dirname(__DIR__));
$dotenv->safeLoad();

$database = trim((string)($_ENV['DB_DATABASE'] ?? ''));
if ($database === '') {
    fwrite(STDERR, "DB_DATABASE is required in server-api/.env or environment variables.\n");
    exit(1);
}

$dsn = sprintf(
    'mysql:host=%s;port=%s;dbname=%s;charset=%s',
    $_ENV['DB_HOST'] ?? '127.0.0.1',
    $_ENV['DB_PORT'] ?? '3306',
    $database,
    $_ENV['DB_CHARSET'] ?? 'utf8mb4'
);

$pdo = new PDO(
    $dsn,
    $_ENV['DB_USERNAME'] ?? '',
    $_ENV['DB_PASSWORD'] ?? '',
    [
        PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
    ]
);

function reportReviewHasTable(PDO $pdo, string $table): bool
{
    $stmt = $pdo->prepare('SELECT COUNT(*) FROM information_schema.TABLES WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ?');
    $stmt->execute([$table]);
    return (int)$stmt->fetchColumn() > 0;
}

function reportReviewHasColumn(PDO $pdo, string $table, string $column): bool
{
    $stmt = $pdo->prepare('SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ? AND COLUMN_NAME = ?');
    $stmt->execute([$table, $column]);
    return (int)$stmt->fetchColumn() > 0;
}

function reportReviewHasIndex(PDO $pdo, string $table, string $index): bool
{
    $stmt = $pdo->prepare('SELECT COUNT(*) FROM information_schema.STATISTICS WHERE TABLE_SCHEMA = DATABASE() AND TABLE_NAME = ? AND INDEX_NAME = ?');
    $stmt->execute([$table, $index]);
    return (int)$stmt->fetchColumn() > 0;
}

$reportColumns = [
    'reject_reason' => "ALTER TABLE reports ADD COLUMN reject_reason VARCHAR(500) NOT NULL DEFAULT '' AFTER invalid_reason",
    'rejected_by' => 'ALTER TABLE reports ADD COLUMN rejected_by BIGINT UNSIGNED NULL DEFAULT NULL AFTER reject_reason',
    'rejected_by_name' => "ALTER TABLE reports ADD COLUMN rejected_by_name VARCHAR(64) NOT NULL DEFAULT '' AFTER rejected_by",
    'rejected_at' => 'ALTER TABLE reports ADD COLUMN rejected_at DATETIME NULL DEFAULT NULL AFTER rejected_by_name',
];

foreach ($reportColumns as $column => $sql) {
    if (reportReviewHasColumn($pdo, 'reports', $column)) {
        echo "SKIP_COLUMN reports.{$column}\n";
    } else {
        $pdo->exec($sql);
        echo "ADD_COLUMN reports.{$column}\n";
    }
}

$pdo->exec("UPDATE reports SET reject_reason = invalid_reason WHERE report_status = 'rejected' AND reject_reason = '' AND invalid_reason <> ''");

if (!reportReviewHasTable($pdo, 'report_logs')) {
    $pdo->exec(<<<'SQL'
CREATE TABLE IF NOT EXISTS report_logs (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  report_id BIGINT UNSIGNED NOT NULL,
  action VARCHAR(64) NOT NULL,
  operator_id BIGINT UNSIGNED NULL DEFAULT NULL,
  operator_name VARCHAR(64) NOT NULL DEFAULT '',
  before_data LONGTEXT NULL,
  after_data LONGTEXT NULL,
  remark VARCHAR(255) NOT NULL DEFAULT '',
  created_at DATETIME NULL DEFAULT NULL,
  PRIMARY KEY (id),
  KEY idx_report_logs_report_id (report_id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci COMMENT='报告操作日志'
SQL);
    echo "CREATE_TABLE report_logs\n";
} else {
    echo "SKIP_TABLE report_logs\n";
}

$reportLogColumns = [
    'report_id' => 'ALTER TABLE report_logs ADD COLUMN report_id BIGINT UNSIGNED NOT NULL AFTER id',
    'action' => "ALTER TABLE report_logs ADD COLUMN action VARCHAR(64) NOT NULL DEFAULT '' AFTER report_id",
    'operator_id' => 'ALTER TABLE report_logs ADD COLUMN operator_id BIGINT UNSIGNED NULL DEFAULT NULL AFTER action',
    'operator_name' => "ALTER TABLE report_logs ADD COLUMN operator_name VARCHAR(64) NOT NULL DEFAULT '' AFTER operator_id",
    'before_data' => 'ALTER TABLE report_logs ADD COLUMN before_data LONGTEXT NULL AFTER operator_name',
    'after_data' => 'ALTER TABLE report_logs ADD COLUMN after_data LONGTEXT NULL AFTER before_data',
    'remark' => "ALTER TABLE report_logs ADD COLUMN remark VARCHAR(255) NOT NULL DEFAULT '' AFTER after_data",
    'created_at' => 'ALTER TABLE report_logs ADD COLUMN created_at DATETIME NULL DEFAULT NULL AFTER remark',
];

foreach ($reportLogColumns as $column => $sql) {
    if (reportReviewHasColumn($pdo, 'report_logs', $column)) {
        echo "SKIP_COLUMN report_logs.{$column}\n";
    } else {
        $pdo->exec($sql);
        echo "ADD_COLUMN report_logs.{$column}\n";
    }
}

if (reportReviewHasIndex($pdo, 'report_logs', 'idx_report_logs_report_id')) {
    echo "SKIP_INDEX report_logs.idx_report_logs_report_id\n";
} else {
    $pdo->exec('ALTER TABLE report_logs ADD KEY idx_report_logs_report_id (report_id)');
    echo "ADD_INDEX report_logs.idx_report_logs_report_id\n";
}

echo "SCHEMA_UPGRADE_REPORT_REVIEW_FLOW_OK\n";