<?php

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

use nntmux\db\DB;

$pdo = new DB();

if (! isset($argv[1])) {
    if ($argv[1] !== 'test' || $argv[1] !== 'alter') {
        exit($pdo->log->error("\nThis script will scan nntmux_fi_schema.sql for all UNIQUE INDEXES.\n"
						."It will verify that you have them. If you do not, you can choose to run manually or allow the script to run them.\n\n"
						."php $argv[0] test      ...: To verify all unique indexes.\n"
						."php $argv[0] alter     ...: To add missing unique indexes.\n"));
    }
}

// Set for Session
if (isset($argv[1]) && $argv[1] === 'alter') {
    $pdo->queryExec('SET SESSION old_alter_table = 1');
}

function run_query($query, $test)
{
    global $pdo;

    if ($test === 'alter') {
        try {
            $qry = $pdo->prepare($query);
            $qry->execute();
            echo $pdo->log->alternateOver('SUCCESS: ').$pdo->log->primary($query);
        } catch (\PDOException $e) {
            if ($e->errorInfo[1] == 1061) {
                // Duplicate key exists
                echo $pdo->log->alternateOver('SKIPPED Index name exists: ').$pdo->log->primary($query);
            } else {
                echo $pdo->log->alternateOver('FAILED: ').$pdo->log->primary($query);
            }
        }
    } else {
        echo $pdo->log->header($query);
    }
}

$path = NN_RES.'db'.DS.'schema'.DS.'nntmux_fi_schema.sql';
$handle = fopen($path, 'r');
if ($handle) {
    while (($line = fgets($handle)) !== false) {
        if (preg_match('/(?P<statement>CREATE UNIQUE INDEX)\s+(?P<index>[\w-]+)\s+ON\s+(?P<table>[\w-]+)\s*\((?P<column>[\w-]+(?:\s*\((?P<size>\d+)\))?)\);/i', $line, $match)) {
            $columns = explode(',', $match['column']);
            foreach ($columns as $column) {
                $check = $pdo->checkColumnIndex($match['table'], $column);
                if (! isset($check['key_name'])) {
                    if (trim($match['table']) === 'collections') {
                        $tables = $pdo->query('SHOW TABLES');
                        foreach ($tables as $row) {
                            $tbl = $row['tables_in_'.env('DB_NAME')];
                            if (preg_match('/collections_\d+/', $tbl)) {
                                $check = $pdo->checkColumnIndex($tbl, $column);
                                if (! isset($check_collections['key_name'])) {
                                    $qry = "ALTER IGNORE TABLE ${tbl} ADD CONSTRAINT {$match['index']} UNIQUE (${match['column']})";
                                    run_query($qry, $argv[1]);
                                }
                            }
                        }
                        $qry = 'ALTER IGNORE TABLE '.trim($match['table']).' ADD CONSTRAINT '.trim($match['index'])." UNIQUE (${match['column']})";
                        run_query($qry, $argv[1]);
                    } elseif (trim($match['table']) === 'binaries') {
                        $tables = $pdo->query('SHOW TABLES');
                        foreach ($tables as $row) {
                            $tbl = $row['tables_in_'.env('DB_NAME')];
                            if (preg_match('/binaries_\d+/', $tbl)) {
                                $checkBinaries = $pdo->checkColumnIndex($tbl, $column);
                                if (! isset($checkBinaries['key_name'])) {
                                    $qry = "ALTER IGNORE TABLE ${tbl} ADD CONSTRAINT {$match['index']} UNIQUE (${match['column']})";
                                    run_query($qry, $argv[1]);
                                }
                            }
                        }
                        $qry = 'ALTER IGNORE TABLE '.trim($match['table']).' ADD CONSTRAINT '.trim($match['index'])." UNIQUE (${match['column']})";
                        run_query($qry, $argv[1]);
                    } elseif (trim($match['table']) === 'parts') {
                        $tables = $pdo->query('SHOW TABLES');
                        foreach ($tables as $row) {
                            $tbl = $row['tables_in_'.env('DB_NAME')];
                            if (preg_match('/parts_\d+/', $tbl)) {
                                $checkParts = $pdo->checkColumnIndex($tbl, $column);
                                if (! isset($checkParts['key_name'])) {
                                    $qry = "ALTER IGNORE TABLE ${tbl} ADD CONSTRAINT {$match['index']} UNIQUE (${match['column']})";
                                    run_query($qry, $argv[1]);
                                }
                            }
                        }
                        $qry = 'ALTER IGNORE TABLE '.trim($match['table']).' ADD CONSTRAINT '.trim($match['index'])." UNIQUE (${match['column']})";
                        run_query($qry, $argv[1]);
                    } elseif (trim($match['table']) === 'missed_parts') {
                        $tables = $pdo->query('SHOW TABLES');
                        foreach ($tables as $row) {
                            $tbl = $row['tables_in_'.env('DB_NAME')];
                            if (preg_match('/partrepair_\d+/', $tbl)) {
                                $checkPartRepair = $pdo->checkColumnIndex($tbl, $column);
                                if (! isset($checkPartRepair['key_name'])) {
                                    $qry = "ALTER IGNORE TABLE ${tbl} ADD CONSTRAINT {$match['index']} UNIQUE (${match['column']})";
                                    run_query($qry, $argv[1]);
                                }
                            }
                        }
                        $qry = 'ALTER IGNORE TABLE '.trim($match['table']).' ADD CONSTRAINT '.trim($match['index'])." UNIQUE (${match['column']})";
                        run_query($qry, $argv[1]);
                    } else {
                        $qry = 'ALTER IGNORE TABLE '.trim($match['table']).' ADD CONSTRAINT '.trim($match['index'])." UNIQUE (${match['column']})";
                        run_query($qry, $argv[1]);
                    }
                } else {
                    echo $pdo->log->primary('A Unique Index exists for '.trim($match['table']).' on '.trim($match['column']));
                }
            }
        }
    }
} else {
    echo $pdo->log->error("\nCan not open nntmux_fi_schema.sql.");
}