<?php
namespace MailPoetVendor\Doctrine\DBAL\Schema;
if (!defined('ABSPATH')) exit;
use MailPoetVendor\Doctrine\DBAL\DriverManager;
use MailPoetVendor\Doctrine\DBAL\Exception;
use MailPoetVendor\Doctrine\DBAL\Platforms\SQLite;
use MailPoetVendor\Doctrine\DBAL\Platforms\SqlitePlatform;
use MailPoetVendor\Doctrine\DBAL\Result;
use MailPoetVendor\Doctrine\DBAL\Types\StringType;
use MailPoetVendor\Doctrine\DBAL\Types\TextType;
use MailPoetVendor\Doctrine\DBAL\Types\Type;
use MailPoetVendor\Doctrine\Deprecations\Deprecation;
use function array_change_key_case;
use function array_map;
use function array_merge;
use function count;
use function explode;
use function file_exists;
use function implode;
use function preg_match;
use function preg_match_all;
use function preg_quote;
use function preg_replace;
use function rtrim;
use function str_replace;
use function strcasecmp;
use function strpos;
use function strtolower;
use function trim;
use function unlink;
use function usort;
use const CASE_LOWER;
class SqliteSchemaManager extends AbstractSchemaManager
{
 public function listTableNames()
 {
 return $this->doListTableNames();
 }
 public function listTables()
 {
 return $this->doListTables();
 }
 public function listTableDetails($name)
 {
 Deprecation::triggerIfCalledFromOutside('doctrine/dbal', 'https://github.com/doctrine/dbal/pull/5595', '%s is deprecated. Use introspectTable() instead.', __METHOD__);
 return $this->doListTableDetails($name);
 }
 public function listTableColumns($table, $database = null)
 {
 return $this->doListTableColumns($table, $database);
 }
 public function listTableIndexes($table)
 {
 return $this->doListTableIndexes($table);
 }
 protected function fetchForeignKeyColumnsByTable(string $databaseName) : array
 {
 $columnsByTable = parent::fetchForeignKeyColumnsByTable($databaseName);
 if (count($columnsByTable) > 0) {
 foreach ($columnsByTable as $table => $columns) {
 $columnsByTable[$table] = $this->addDetailsToTableForeignKeyColumns($table, $columns);
 }
 }
 return $columnsByTable;
 }
 public function dropDatabase($database)
 {
 Deprecation::trigger('doctrine/dbal', 'https://github.com/doctrine/dbal/issues/4963', 'SqliteSchemaManager::dropDatabase() is deprecated. Delete the database file using the filesystem.');
 if (!file_exists($database)) {
 return;
 }
 unlink($database);
 }
 public function createDatabase($database)
 {
 Deprecation::trigger('doctrine/dbal', 'https://github.com/doctrine/dbal/issues/4963', 'SqliteSchemaManager::createDatabase() is deprecated.' . ' The engine will create the database file automatically.');
 $params = $this->_conn->getParams();
 $params['path'] = $database;
 unset($params['memory']);
 $conn = DriverManager::getConnection($params);
 $conn->connect();
 $conn->close();
 }
 public function createForeignKey(ForeignKeyConstraint $foreignKey, $table)
 {
 if (!$table instanceof Table) {
 $table = $this->listTableDetails($table);
 }
 $this->alterTable(new TableDiff($table->getName(), [], [], [], [], [], [], $table, [$foreignKey]));
 }
 public function dropAndCreateForeignKey(ForeignKeyConstraint $foreignKey, $table)
 {
 Deprecation::trigger('doctrine/dbal', 'https://github.com/doctrine/dbal/pull/4897', 'SqliteSchemaManager::dropAndCreateForeignKey() is deprecated.' . ' Use SqliteSchemaManager::dropForeignKey() and SqliteSchemaManager::createForeignKey() instead.');
 if (!$table instanceof Table) {
 $table = $this->listTableDetails($table);
 }
 $this->alterTable(new TableDiff($table->getName(), [], [], [], [], [], [], $table, [], [$foreignKey]));
 }
 public function dropForeignKey($foreignKey, $table)
 {
 if (!$table instanceof Table) {
 $table = $this->listTableDetails($table);
 }
 $this->alterTable(new TableDiff($table->getName(), [], [], [], [], [], [], $table, [], [], [$foreignKey]));
 }
 public function listTableForeignKeys($table, $database = null)
 {
 $table = $this->normalizeName($table);
 $columns = $this->selectForeignKeyColumns($database ?? 'main', $table)->fetchAllAssociative();
 if (count($columns) > 0) {
 $columns = $this->addDetailsToTableForeignKeyColumns($table, $columns);
 }
 return $this->_getPortableTableForeignKeysList($columns);
 }
 protected function _getPortableTableDefinition($table)
 {
 return $table['table_name'];
 }
 protected function _getPortableTableIndexesList($tableIndexes, $tableName = null)
 {
 $indexBuffer = [];
 // fetch primary
 $indexArray = $this->_conn->fetchAllAssociative('SELECT * FROM PRAGMA_TABLE_INFO (?)', [$tableName]);
 usort(
 $indexArray,
 static function (array $a, array $b) : int {
 if ($a['pk'] === $b['pk']) {
 return $a['cid'] - $b['cid'];
 }
 return $a['pk'] - $b['pk'];
 }
 );
 foreach ($indexArray as $indexColumnRow) {
 if ($indexColumnRow['pk'] === 0 || $indexColumnRow['pk'] === '0') {
 continue;
 }
 $indexBuffer[] = ['key_name' => 'primary', 'primary' => \true, 'non_unique' => \false, 'column_name' => $indexColumnRow['name']];
 }
 // fetch regular indexes
 foreach ($tableIndexes as $tableIndex) {
 // Ignore indexes with reserved names, e.g. autoindexes
 if (strpos($tableIndex['name'], 'sqlite_') === 0) {
 continue;
 }
 $keyName = $tableIndex['name'];
 $idx = [];
 $idx['key_name'] = $keyName;
 $idx['primary'] = \false;
 $idx['non_unique'] = !$tableIndex['unique'];
 $indexArray = $this->_conn->fetchAllAssociative('SELECT * FROM PRAGMA_INDEX_INFO (?)', [$keyName]);
 foreach ($indexArray as $indexColumnRow) {
 $idx['column_name'] = $indexColumnRow['name'];
 $indexBuffer[] = $idx;
 }
 }
 return parent::_getPortableTableIndexesList($indexBuffer, $tableName);
 }
 protected function _getPortableTableColumnList($table, $database, $tableColumns)
 {
 $list = parent::_getPortableTableColumnList($table, $database, $tableColumns);
 // find column with ?autoincrement
 $autoincrementColumn = null;
 $autoincrementCount = 0;
 foreach ($tableColumns as $tableColumn) {
 if ($tableColumn['pk'] === 0 || $tableColumn['pk'] === '0') {
 continue;
 }
 $autoincrementCount++;
 if ($autoincrementColumn !== null || strtolower($tableColumn['type']) !== 'integer') {
 continue;
 }
 $autoincrementColumn = $tableColumn['name'];
 }
 if ($autoincrementCount === 1 && $autoincrementColumn !== null) {
 foreach ($list as $column) {
 if ($autoincrementColumn !== $column->getName()) {
 continue;
 }
 $column->setAutoincrement(\true);
 }
 }
 // inspect column collation and comments
 $createSql = $this->getCreateTableSQL($table);
 foreach ($list as $columnName => $column) {
 $type = $column->getType();
 if ($type instanceof StringType || $type instanceof TextType) {
 $column->setPlatformOption('collation', $this->parseColumnCollationFromSQL($columnName, $createSql) ?? 'BINARY');
 }
 $comment = $this->parseColumnCommentFromSQL($columnName, $createSql);
 if ($comment === null) {
 continue;
 }
 $type = $this->extractDoctrineTypeFromComment($comment, '');
 if ($type !== '') {
 $column->setType(Type::getType($type));
 $comment = $this->removeDoctrineTypeFromComment($comment, $type);
 }
 $column->setComment($comment);
 }
 return $list;
 }
 protected function _getPortableTableColumnDefinition($tableColumn)
 {
 $parts = explode('(', $tableColumn['type']);
 $tableColumn['type'] = trim($parts[0]);
 if (isset($parts[1])) {
 $length = trim($parts[1], ')');
 $tableColumn['length'] = $length;
 }
 $dbType = strtolower($tableColumn['type']);
 $length = $tableColumn['length'] ?? null;
 $unsigned = \false;
 if (strpos($dbType, ' unsigned') !== \false) {
 $dbType = str_replace(' unsigned', '', $dbType);
 $unsigned = \true;
 }
 $fixed = \false;
 $type = $this->_platform->getDoctrineTypeMapping($dbType);
 $default = $tableColumn['dflt_value'];
 if ($default === 'NULL') {
 $default = null;
 }
 if ($default !== null) {
 // SQLite returns the default value as a literal expression, so we need to parse it
 if (preg_match('/^\'(.*)\'$/s', $default, $matches) === 1) {
 $default = str_replace("''", "'", $matches[1]);
 }
 }
 $notnull = (bool) $tableColumn['notnull'];
 if (!isset($tableColumn['name'])) {
 $tableColumn['name'] = '';
 }
 $precision = null;
 $scale = null;
 switch ($dbType) {
 case 'char':
 $fixed = \true;
 break;
 case 'float':
 case 'double':
 case 'real':
 case 'decimal':
 case 'numeric':
 if (isset($tableColumn['length'])) {
 if (strpos($tableColumn['length'], ',') === \false) {
 $tableColumn['length'] .= ',0';
 }
 [$precision, $scale] = array_map('trim', explode(',', $tableColumn['length']));
 }
 $length = null;
 break;
 }
 $options = ['length' => $length, 'unsigned' => $unsigned, 'fixed' => $fixed, 'notnull' => $notnull, 'default' => $default, 'precision' => $precision, 'scale' => $scale];
 return new Column($tableColumn['name'], Type::getType($type), $options);
 }
 protected function _getPortableViewDefinition($view)
 {
 return new View($view['name'], $view['sql']);
 }
 protected function _getPortableTableForeignKeysList($tableForeignKeys)
 {
 $list = [];
 foreach ($tableForeignKeys as $value) {
 $value = array_change_key_case($value, CASE_LOWER);
 $id = $value['id'];
 if (!isset($list[$id])) {
 if (!isset($value['on_delete']) || $value['on_delete'] === 'RESTRICT') {
 $value['on_delete'] = null;
 }
 if (!isset($value['on_update']) || $value['on_update'] === 'RESTRICT') {
 $value['on_update'] = null;
 }
 $list[$id] = ['name' => $value['constraint_name'], 'local' => [], 'foreign' => [], 'foreignTable' => $value['table'], 'onDelete' => $value['on_delete'], 'onUpdate' => $value['on_update'], 'deferrable' => $value['deferrable'], 'deferred' => $value['deferred']];
 }
 $list[$id]['local'][] = $value['from'];
 if ($value['to'] === null) {
 // Inferring a shorthand form for the foreign key constraint, where the "to" field is empty.
 // @see https://www.sqlite.org/foreignkeys.html#fk_indexes.
 $foreignTableIndexes = $this->_getPortableTableIndexesList([], $value['table']);
 if (!isset($foreignTableIndexes['primary'])) {
 continue;
 }
 $list[$id]['foreign'] = [...$list[$id]['foreign'], ...$foreignTableIndexes['primary']->getColumns()];
 continue;
 }
 $list[$id]['foreign'][] = $value['to'];
 }
 return parent::_getPortableTableForeignKeysList($list);
 }
 protected function _getPortableTableForeignKeyDefinition($tableForeignKey) : ForeignKeyConstraint
 {
 return new ForeignKeyConstraint($tableForeignKey['local'], $tableForeignKey['foreignTable'], $tableForeignKey['foreign'], $tableForeignKey['name'], ['onDelete' => $tableForeignKey['onDelete'], 'onUpdate' => $tableForeignKey['onUpdate'], 'deferrable' => $tableForeignKey['deferrable'], 'deferred' => $tableForeignKey['deferred']]);
 }
 private function parseColumnCollationFromSQL(string $column, string $sql) : ?string
 {
 $pattern = '{' . $this->buildIdentifierPattern($column) . '[^,(]+(?:\\([^()]+\\)[^,]*)?(?:(?:DEFAULT|CHECK)\\s*(?:\\(.*?\\))?[^,]*)*COLLATE\\s+["\']?([^\\s,"\')]+)}is';
 if (preg_match($pattern, $sql, $match) !== 1) {
 return null;
 }
 return $match[1];
 }
 private function parseTableCommentFromSQL(string $table, string $sql) : ?string
 {
 $pattern = '/\\s* # Allow whitespace characters at start of line
CREATE\\sTABLE' . $this->buildIdentifierPattern($table) . '
( # Start capture
 (?:\\s*--[^\\n]*\\n?)+ # Capture anything that starts with whitespaces followed by -- until the end of the line(s)
)/ix';
 if (preg_match($pattern, $sql, $match) !== 1) {
 return null;
 }
 $comment = preg_replace('{^\\s*--}m', '', rtrim($match[1], "\n"));
 return $comment === '' ? null : $comment;
 }
 private function parseColumnCommentFromSQL(string $column, string $sql) : ?string
 {
 $pattern = '{[\\s(,]' . $this->buildIdentifierPattern($column) . '(?:\\([^)]*?\\)|[^,(])*?,?((?:(?!\\n))(?:\\s*--[^\\n]*\\n?)+)}i';
 if (preg_match($pattern, $sql, $match) !== 1) {
 return null;
 }
 $comment = preg_replace('{^\\s*--}m', '', rtrim($match[1], "\n"));
 return $comment === '' ? null : $comment;
 }
 private function buildIdentifierPattern(string $identifier) : string
 {
 return '(?:' . implode('|', array_map(static function (string $sql) : string {
 return '\\W' . preg_quote($sql, '/') . '\\W';
 }, [$identifier, $this->_platform->quoteSingleIdentifier($identifier)])) . ')';
 }
 private function getCreateTableSQL(string $table) : string
 {
 $sql = $this->_conn->fetchOne(<<<'SQL'
SELECT sql
 FROM (
 SELECT *
 FROM sqlite_master
 UNION ALL
 SELECT *
 FROM sqlite_temp_master
 )
WHERE type = 'table'
AND name = ?
SQL
, [$table]);
 if ($sql !== \false) {
 return $sql;
 }
 return '';
 }
 private function addDetailsToTableForeignKeyColumns(string $table, array $columns) : array
 {
 $foreignKeyDetails = $this->getForeignKeyDetails($table);
 $foreignKeyCount = count($foreignKeyDetails);
 foreach ($columns as $i => $column) {
 // SQLite identifies foreign keys in reverse order of appearance in SQL
 $columns[$i] = array_merge($column, $foreignKeyDetails[$foreignKeyCount - $column['id'] - 1]);
 }
 return $columns;
 }
 private function getForeignKeyDetails($table)
 {
 $createSql = $this->getCreateTableSQL($table);
 if (preg_match_all('#
 (?:CONSTRAINT\\s+(\\S+)\\s+)?
 (?:FOREIGN\\s+KEY[^)]+\\)\\s*)?
 REFERENCES\\s+\\S+\\s*(?:\\([^)]+\\))?
 (?:
 [^,]*?
 (NOT\\s+DEFERRABLE|DEFERRABLE)
 (?:\\s+INITIALLY\\s+(DEFERRED|IMMEDIATE))?
 )?#isx', $createSql, $match) === 0) {
 return [];
 }
 $names = $match[1];
 $deferrable = $match[2];
 $deferred = $match[3];
 $details = [];
 for ($i = 0, $count = count($match[0]); $i < $count; $i++) {
 $details[] = ['constraint_name' => isset($names[$i]) && $names[$i] !== '' ? $names[$i] : null, 'deferrable' => isset($deferrable[$i]) && strcasecmp($deferrable[$i], 'deferrable') === 0, 'deferred' => isset($deferred[$i]) && strcasecmp($deferred[$i], 'deferred') === 0];
 }
 return $details;
 }
 public function createComparator() : Comparator
 {
 return new SQLite\Comparator($this->_platform);
 }
 public function getSchemaSearchPaths()
 {
 Deprecation::triggerIfCalledFromOutside('doctrine/dbal', 'https://github.com/doctrine/dbal/pull/4821', 'SqliteSchemaManager::getSchemaSearchPaths() is deprecated.');
 // SQLite does not support schemas or databases
 return [];
 }
 protected function selectTableNames(string $databaseName) : Result
 {
 $sql = <<<'SQL'
SELECT name AS table_name
FROM sqlite_master
WHERE type = 'table'
 AND name != 'sqlite_sequence'
 AND name != 'geometry_columns'
 AND name != 'spatial_ref_sys'
UNION ALL
SELECT name
FROM sqlite_temp_master
WHERE type = 'table'
ORDER BY name
SQL;
 return $this->_conn->executeQuery($sql);
 }
 protected function selectTableColumns(string $databaseName, ?string $tableName = null) : Result
 {
 $sql = <<<'SQL'
 SELECT t.name AS table_name,
 c.*
 FROM sqlite_master t
 JOIN pragma_table_info(t.name) c
SQL;
 $conditions = ["t.type = 'table'", "t.name NOT IN ('geometry_columns', 'spatial_ref_sys', 'sqlite_sequence')"];
 $params = [];
 if ($tableName !== null) {
 $conditions[] = 't.name = ?';
 $params[] = $this->_platform->canEmulateSchemas() ? str_replace('.', '__', $tableName) : $tableName;
 }
 $sql .= ' WHERE ' . implode(' AND ', $conditions) . ' ORDER BY t.name, c.cid';
 return $this->_conn->executeQuery($sql, $params);
 }
 protected function selectIndexColumns(string $databaseName, ?string $tableName = null) : Result
 {
 $sql = <<<'SQL'
 SELECT t.name AS table_name,
 i.*
 FROM sqlite_master t
 JOIN pragma_index_list(t.name) i
SQL;
 $conditions = ["t.type = 'table'", "t.name NOT IN ('geometry_columns', 'spatial_ref_sys', 'sqlite_sequence')"];
 $params = [];
 if ($tableName !== null) {
 $conditions[] = 't.name = ?';
 $params[] = $this->_platform->canEmulateSchemas() ? str_replace('.', '__', $tableName) : $tableName;
 }
 $sql .= ' WHERE ' . implode(' AND ', $conditions) . ' ORDER BY t.name, i.seq';
 return $this->_conn->executeQuery($sql, $params);
 }
 protected function selectForeignKeyColumns(string $databaseName, ?string $tableName = null) : Result
 {
 $sql = <<<'SQL'
 SELECT t.name AS table_name,
 p.*
 FROM sqlite_master t
 JOIN pragma_foreign_key_list(t.name) p
 ON p."seq" != '-1'
SQL;
 $conditions = ["t.type = 'table'", "t.name NOT IN ('geometry_columns', 'spatial_ref_sys', 'sqlite_sequence')"];
 $params = [];
 if ($tableName !== null) {
 $conditions[] = 't.name = ?';
 $params[] = $this->_platform->canEmulateSchemas() ? str_replace('.', '__', $tableName) : $tableName;
 }
 $sql .= ' WHERE ' . implode(' AND ', $conditions) . ' ORDER BY t.name, p.id DESC, p.seq';
 return $this->_conn->executeQuery($sql, $params);
 }
 protected function fetchTableOptionsByTable(string $databaseName, ?string $tableName = null) : array
 {
 if ($tableName === null) {
 $tables = $this->listTableNames();
 } else {
 $tables = [$tableName];
 }
 $tableOptions = [];
 foreach ($tables as $table) {
 $comment = $this->parseTableCommentFromSQL($table, $this->getCreateTableSQL($table));
 if ($comment === null) {
 continue;
 }
 $tableOptions[$table]['comment'] = $comment;
 }
 return $tableOptions;
 }
}
