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import { type SQL } from 'drizzle-orm';
import { SQLiteAsyncDialect } from 'drizzle-orm/sqlite-core';
import { bold } from 'kleur/colors';
import {
FOREIGN_KEY_DNE_ERROR,
FOREIGN_KEY_REFERENCES_EMPTY_ERROR,
FOREIGN_KEY_REFERENCES_LENGTH_ERROR,
REFERENCE_DNE_ERROR,
} from '../runtime/errors.js';
import { hasPrimaryKey } from '../runtime/index.js';
import { isSerializedSQL } from '../runtime/types.js';
import type {
BooleanColumn,
ColumnType,
DBColumn,
DBTable,
DateColumn,
JsonColumn,
NumberColumn,
TextColumn,
} from './types.js';
const sqlite = new SQLiteAsyncDialect();
export const SEED_DEV_FILE_NAME = ['seed.ts', 'seed.js', 'seed.mjs', 'seed.mts'];
export function getDropTableIfExistsQuery(tableName: string) {
return `DROP TABLE IF EXISTS ${sqlite.escapeName(tableName)}`;
}
export function getCreateTableQuery(tableName: string, table: DBTable) {
let query = `CREATE TABLE ${sqlite.escapeName(tableName)} (`;
const colQueries = [];
const colHasPrimaryKey = Object.entries(table.columns).find(([, column]) =>
hasPrimaryKey(column),
);
if (!colHasPrimaryKey) {
colQueries.push('_id INTEGER PRIMARY KEY');
}
for (const [columnName, column] of Object.entries(table.columns)) {
const colQuery = `${sqlite.escapeName(columnName)} ${schemaTypeToSqlType(
column.type,
)}${getModifiers(columnName, column)}`;
colQueries.push(colQuery);
}
colQueries.push(...getCreateForeignKeyQueries(tableName, table));
query += colQueries.join(', ') + ')';
return query;
}
export function getCreateIndexQueries(tableName: string, table: Pick<DBTable, 'indexes'>) {
let queries: string[] = [];
for (const [indexName, indexProps] of Object.entries(table.indexes ?? {})) {
const onColNames = asArray(indexProps.on);
const onCols = onColNames.map((colName) => sqlite.escapeName(colName));
const unique = indexProps.unique ? 'UNIQUE ' : '';
const indexQuery = `CREATE ${unique}INDEX ${sqlite.escapeName(
indexName,
)} ON ${sqlite.escapeName(tableName)} (${onCols.join(', ')})`;
queries.push(indexQuery);
}
return queries;
}
export function getCreateForeignKeyQueries(tableName: string, table: DBTable) {
let queries: string[] = [];
for (const foreignKey of table.foreignKeys ?? []) {
const columns = asArray(foreignKey.columns);
const references = asArray(foreignKey.references);
if (columns.length !== references.length) {
throw new Error(FOREIGN_KEY_REFERENCES_LENGTH_ERROR(tableName));
}
const firstReference = references[0];
if (!firstReference) {
throw new Error(FOREIGN_KEY_REFERENCES_EMPTY_ERROR(tableName));
}
const referencedTable = firstReference.schema.collection;
if (!referencedTable) {
throw new Error(FOREIGN_KEY_DNE_ERROR(tableName));
}
const query = `FOREIGN KEY (${columns
.map((f) => sqlite.escapeName(f))
.join(', ')}) REFERENCES ${sqlite.escapeName(referencedTable)}(${references
.map((r) => sqlite.escapeName(r.schema.name!))
.join(', ')})`;
queries.push(query);
}
return queries;
}
function asArray<T>(value: T | T[]) {
return Array.isArray(value) ? value : [value];
}
export function schemaTypeToSqlType(type: ColumnType): 'text' | 'integer' {
switch (type) {
case 'date':
case 'text':
case 'json':
return 'text';
case 'number':
case 'boolean':
return 'integer';
}
}
export function getModifiers(columnName: string, column: DBColumn) {
let modifiers = '';
if (hasPrimaryKey(column)) {
return ' PRIMARY KEY';
}
if (!column.schema.optional) {
modifiers += ' NOT NULL';
}
if (column.schema.unique) {
modifiers += ' UNIQUE';
}
if (hasDefault(column)) {
modifiers += ` DEFAULT ${getDefaultValueSql(columnName, column)}`;
}
const references = getReferencesConfig(column);
if (references) {
const { collection: tableName, name } = references.schema;
if (!tableName || !name) {
throw new Error(REFERENCE_DNE_ERROR(columnName));
}
modifiers += ` REFERENCES ${sqlite.escapeName(tableName)} (${sqlite.escapeName(name)})`;
}
return modifiers;
}
export function getReferencesConfig(column: DBColumn) {
const canHaveReferences = column.type === 'number' || column.type === 'text';
if (!canHaveReferences) return undefined;
return column.schema.references;
}
// Using `DBColumn` will not narrow `default` based on the column `type`
// Handle each column separately
type WithDefaultDefined<T extends DBColumn> = T & {
schema: Required<Pick<T['schema'], 'default'>>;
};
type DBColumnWithDefault =
| WithDefaultDefined<TextColumn>
| WithDefaultDefined<DateColumn>
| WithDefaultDefined<NumberColumn>
| WithDefaultDefined<BooleanColumn>
| WithDefaultDefined<JsonColumn>;
// Type narrowing the default fails on union types, so use a type guard
export function hasDefault(column: DBColumn): column is DBColumnWithDefault {
if (column.schema.default !== undefined) {
return true;
}
if (hasPrimaryKey(column) && column.type === 'number') {
return true;
}
return false;
}
function toDefault<T>(def: T | SQL<any>): string {
const type = typeof def;
if (type === 'string') {
return sqlite.escapeString(def as string);
} else if (type === 'boolean') {
return def ? 'TRUE' : 'FALSE';
} else {
return def + '';
}
}
function getDefaultValueSql(columnName: string, column: DBColumnWithDefault): string {
if (isSerializedSQL(column.schema.default)) {
return column.schema.default.sql;
}
switch (column.type) {
case 'boolean':
case 'number':
case 'text':
case 'date':
return toDefault(column.schema.default);
case 'json': {
let stringified = '';
try {
stringified = JSON.stringify(column.schema.default);
} catch {
// eslint-disable-next-line no-console
console.log(
`Invalid default value for column ${bold(
columnName,
)}. Defaults must be valid JSON when using the \`json()\` type.`,
);
process.exit(0);
}
return sqlite.escapeString(stringified);
}
}
}
|
