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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Cosray\Config; |
| 6 | |
| 7 | use Cosray\Exception\RuntimeException; |
| 8 | |
| 9 | final class Database |
| 10 | { |
| 11 | /** @var list<non-empty-string>|null */ |
| 12 | private ?array $sqlCache = null; |
| 13 | |
| 14 | /** @var list<non-empty-string>|null */ |
| 15 | private ?array $migrationsCache = null; |
| 16 | |
| 17 | /** @var array<string, mixed>|null */ |
| 18 | private ?array $optionsCache = null; |
| 19 | |
| 20 | /** @var array<non-empty-string, array<non-empty-string, string>>|null */ |
| 21 | private ?array $placeholdersCache = null; |
| 22 | |
| 23 | public function __construct( |
| 24 | private readonly \Cosray\Config $config, |
| 25 | ) {} |
| 26 | |
| 27 | /** @var ?non-empty-string */ |
| 28 | public ?string $dsn { |
| 29 | get => $this->config->get('db.dsn'); |
| 30 | } |
| 31 | |
| 32 | /** @var list<non-empty-string> */ |
| 33 | public array $sql { |
| 34 | get => $this->sqlCache ??= self::strings($this->config->get('db.sql')); |
| 35 | } |
| 36 | |
| 37 | /** @var list<non-empty-string> */ |
| 38 | public array $migrations { |
| 39 | get => $this->migrationsCache ??= self::strings($this->config->get('db.migrations')); |
| 40 | } |
| 41 | |
| 42 | /** @var array<non-empty-string, array<non-empty-string, string>> */ |
| 43 | public array $placeholders { |
| 44 | get => $this->placeholdersCache ??= $this->validatedPlaceholders(); |
| 45 | } |
| 46 | |
| 47 | public bool $print { |
| 48 | get => $this->config->get('db.print'); |
| 49 | } |
| 50 | |
| 51 | /** @var array<string, mixed> */ |
| 52 | public array $options { |
| 53 | get => $this->optionsCache ??= $this->config->get('db.options'); |
| 54 | } |
| 55 | |
| 56 | public function table(string $name, ?string $driver = null): string |
| 57 | { |
| 58 | if (preg_match('/^[a-z_][a-z0-9_]*$/', $name) !== 1) { |
| 59 | throw new RuntimeException('Invalid table name.'); |
| 60 | } |
| 61 | |
| 62 | return $this->prefix($driver) . $name; |
| 63 | } |
| 64 | |
| 65 | /** @return array<non-empty-string, array<non-empty-string, string>> */ |
| 66 | private function validatedPlaceholders(): array |
| 67 | { |
| 68 | /** @var array<non-empty-string, array<non-empty-string, string>> $placeholders */ |
| 69 | $placeholders = $this->config->get('db.placeholders'); |
| 70 | $driver = $this->driver(); |
| 71 | $prefix = $placeholders[$driver]['cms.prefix'] ?? null; |
| 72 | |
| 73 | if ($prefix !== null) { |
| 74 | $this->assertValidPrefix($prefix, $driver); |
| 75 | |
| 76 | return $this->withPostgresqlObjectPrefix($placeholders); |
| 77 | } |
| 78 | |
| 79 | $prefix = $placeholders['all']['cms.prefix'] ?? null; |
| 80 | |
| 81 | if ($prefix !== null) { |
| 82 | $this->assertValidPrefix($prefix, $driver); |
| 83 | |
| 84 | return $this->withPostgresqlObjectPrefix($placeholders); |
| 85 | } |
| 86 | |
| 87 | throw new RuntimeException('Invalid table prefix.'); |
| 88 | } |
| 89 | |
| 90 | /** |
| 91 | * @param array<non-empty-string, array<non-empty-string, string>> $placeholders |
| 92 | * |
| 93 | * @return array<non-empty-string, array<non-empty-string, string>> |
| 94 | */ |
| 95 | private function withPostgresqlObjectPrefix(array $placeholders): array |
| 96 | { |
| 97 | if (array_key_exists('cms.obj', $placeholders['pgsql'] ?? [])) { |
| 98 | return $placeholders; |
| 99 | } |
| 100 | |
| 101 | $prefix = $placeholders['pgsql']['cms.prefix'] ?? $placeholders['all']['cms.prefix'] ?? null; |
| 102 | |
| 103 | if ($prefix === null) { |
| 104 | return $placeholders; |
| 105 | } |
| 106 | |
| 107 | if (!is_string($prefix)) { |
| 108 | throw new RuntimeException('Invalid table prefix.'); |
| 109 | } |
| 110 | |
| 111 | $this->assertValidPrefix($prefix, 'pgsql'); |
| 112 | |
| 113 | $placeholders['pgsql']['cms.obj'] = str_ends_with($prefix, '.') ? '' : $prefix; |
| 114 | |
| 115 | return $placeholders; |
| 116 | } |
| 117 | |
| 118 | private function prefix(?string $driver = null): string |
| 119 | { |
| 120 | $placeholders = $this->placeholders; |
| 121 | $driver ??= $this->driver(); |
| 122 | $prefix = $placeholders[$driver]['cms.prefix'] ?? $placeholders['all']['cms.prefix'] ?? null; |
| 123 | |
| 124 | if (!is_string($prefix)) { |
| 125 | throw new RuntimeException('Invalid table prefix.'); |
| 126 | } |
| 127 | |
| 128 | $this->assertValidPrefix($prefix, $driver); |
| 129 | |
| 130 | return $prefix; |
| 131 | } |
| 132 | |
| 133 | private function assertValidPrefix(mixed $prefix, string $driver): void |
| 134 | { |
| 135 | if (is_string($prefix) && $this->validPrefix($prefix, $driver)) { |
| 136 | return; |
| 137 | } |
| 138 | |
| 139 | throw new RuntimeException('Invalid table prefix.'); |
| 140 | } |
| 141 | |
| 142 | private function validPrefix(string $prefix, string $driver): bool |
| 143 | { |
| 144 | if ($driver === 'pgsql') { |
| 145 | return preg_match('/^(?:[a-z_][a-z0-9_]*[.]?)?$/', $prefix) === 1; |
| 146 | } |
| 147 | |
| 148 | return preg_match('/^(?:[a-z_][a-z0-9_]*)?$/', $prefix) === 1; |
| 149 | } |
| 150 | |
| 151 | private function driver(): string |
| 152 | { |
| 153 | $driver = strstr($this->dsn ?? '', ':', before_needle: true); |
| 154 | |
| 155 | return $driver === false ? '' : $driver; |
| 156 | } |
| 157 | |
| 158 | /** @return list<non-empty-string> */ |
| 159 | private static function strings(mixed $value): array |
| 160 | { |
| 161 | if ($value === null) { |
| 162 | return []; |
| 163 | } |
| 164 | |
| 165 | if (is_string($value)) { |
| 166 | $value = trim($value); |
| 167 | |
| 168 | return $value === '' ? [] : [$value]; |
| 169 | } |
| 170 | |
| 171 | return array_values($value); |
| 172 | } |
| 173 | } |