<?php

require_once dirname(__DIR__, 3).DIRECTORY_SEPARATOR.'bootstrap.php';

passthru('clear');

$pdo = new nntmux\db\DB();

if (! isset($argv[1]) || (isset($argv[1]) && $argv[1] !== 'true')) {
    exit($pdo->log->error("\nThis script renames all table columns to lowercase, it can be dangerous. Please BACKUP your database before running this script.\n"
					."php rename_to_lower.php true      ...: To rename all table columns to lowercase.\n"));
}

echo $pdo->log->warning('This script renames all table colums to lowercase.');
echo $pdo->log->header("Have you backed up your database? Type 'BACKEDUP' to continue:  \n");
echo $pdo->log->warningOver("\n");
$line = fgets(STDIN);
if (trim($line) != 'BACKEDUP') {
    exit($pdo->log->error('This script is dangerous you must type BACKEDUP for it function.'));
}

echo "\n";
echo $pdo->log->header("Thank you, continuing...\n\n");

if ($argc == 1 || $argv[1] != 'true') {
    exit($pdo->log->error("\nThis script will rename every table column to lowercase that is not already lowercase.\nTo run:\nphp $argv[0] true\n"));
}

$database = env('DB_NAME');

$count = 0;
$list = $pdo->query("SELECT TABLE_NAME, COLUMN_NAME, UPPER(COLUMN_TYPE), EXTRA FROM information_schema.columns WHERE table_schema = '".$database."'");
if (count($list) == 0) {
    echo $pdo->log->info('No table columns to rename');
} else {
    foreach ($list as $column) {
        if ($column['column_name'] !== strtolower($column['column_name'])) {
            echo $pdo->log->header('Renaming Table '.$column['table_name'].' Column '.$column['column_name']);
            if (isset($column['extra'])) {
                $extra = strtoupper($column['extra']);
            } else {
                $extra = '';
            }
            $pdo->queryDirect('ALTER TABLE '.$column['table_name'].' CHANGE '.$column['column_name'].' '.strtolower($column['column_name']).' '.$column['upper(column_type)'].' '.$extra);
            $count++;
        }
        if (strtolower($column['column_name']) === 'id' && strtolower($column['extra']) !== 'auto_increment') {
            echo $pdo->log->header('Renaming Table '.$column['table_name'].' Column '.$column['column_name']);
            $extra = 'AUTO_INCREMENT';
            if ($column['table_name'] != 'releases_se') {
                $placeholder = $pdo->queryDirect('SELECT MAX(id) FROM '.$column['table_name']);
                $pdo->queryDirect('ALTER IGNORE TABLE '.$column['table_name'].' CHANGE '.$column['column_name'].' '.strtolower($column['column_name']).' '.$column['upper(column_type)'].' '.$extra);
                $pdo->queryDirect('ALTER IGNORE TABLE '.$column['table_name'].' AUTO_INCREMENT = '.$placeholder + 1);
                $count++;
            }
        }
    }
}
if ($count == 0) {
    echo $pdo->log->info('All table column names are already lowercase');
} else {
    echo $pdo->log->header($count.' colums renamed');
}