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import {Type, type TFunction, type TSchema} from 'typebox';
import {attachHandlers} from './schemaTable.ts';
import {
extractProcedureBody,
methodId,
normalizeSQL,
readSqlFiles,
snakeToCamel,
sqlTypeToTypebox,
} from './utils.ts';
interface IParameter {
PARAMETER_NAME: string;
DATA_TYPE: string;
PARAMETER_MODE: string;
}
function _dbName(knex: Knex): string | undefined {
return (knex as unknown as {client?: {config?: {connection?: {database?: string}}}})?.client
?.config?.connection?.database;
}
async function _getParameters(knex: Knex, dbName: string, spName: string): Promise<IParameter[]> {
return knex
.select('PARAMETER_NAME', 'DATA_TYPE', 'PARAMETER_MODE')
.from('information_schema.PARAMETERS')
.where('SPECIFIC_SCHEMA', dbName)
.where('SPECIFIC_NAME', spName)
.whereNotNull('PARAMETER_NAME')
.orderBy('ORDINAL_POSITION');
}
function _makeCallable(
knex: Knex,
spName: string,
inParams: IParameter[],
): (params: Record<string, unknown>) => Promise<unknown> {
return async (params: Record<string, unknown>) => {
const placeholders = inParams.map(() => '?').join(', ');
const values = inParams.map(p => params[snakeToCamel(p.PARAMETER_NAME)]);
const result = await knex.raw(`CALL \`${spName}\`(${placeholders})`, values as string[]);
return Array.isArray(result?.[0]) ? result[0][0] : result?.[0];
};
}
/**
* Synchronise stored procedures to the database.
*
* Accepts either a directory path (all `.sql` files are loaded) or an array of
* `{name, sql}` objects.
*
* **Only procedures whose body differs from the current definition are
* re-created** — so repeated startups with an unchanged schema are cheap.
*
* Procedures whose name starts with `_` are synced as normal — the underscore
* prefix is a convention that marks them as private DB helpers. They will be
* synced but will **not** be bound as synthetic API handlers.
*/
export async function schemaProcedureSyncImpl(
knex: Knex,
procedures: string | Array<{name: string; sql: string}>,
): Promise<{created: string[]; skipped: string[]}> {
const dbName = _dbName(knex);
let definitions: Array<{name: string; sql: string}>;
if (typeof procedures === 'string') {
definitions = readSqlFiles(procedures);
} else {
definitions = procedures;
}
const created: string[] = [];
const skipped: string[] = [];
for (const {name, sql} of definitions) {
if (dbName) {
const existing: Array<{ROUTINE_DEFINITION: string}> = await knex
.select('ROUTINE_DEFINITION')
.from('information_schema.ROUTINES')
.where('ROUTINE_SCHEMA', dbName)
.where('ROUTINE_NAME', name)
.where('ROUTINE_TYPE', 'PROCEDURE');
if (existing.length > 0 && existing[0].ROUTINE_DEFINITION) {
const storedNorm = normalizeSQL(existing[0].ROUTINE_DEFINITION);
const newNorm = normalizeSQL(extractProcedureBody(sql));
if (storedNorm === newNorm) {
skipped.push(name);
continue;
}
}
}
await knex.raw('DROP PROCEDURE IF EXISTS ??', [name]);
await knex.raw(sql);
created.push(name);
}
return {created, skipped};
}
/**
* Discover stored procedures whose names match `namespace` in the database and
* generate a callable handler function and TypeBox schema for each.
*
* Procedures starting with `_` are intentionally excluded — they are private
* DB helpers not intended to be exposed via the API layer.
*
* Input parameter types are derived from `information_schema.PARAMETERS`.
*/
export async function schemaProcedureBindImpl(
knex: Knex,
namespace: string,
schema?: string,
): Promise<{
handlers: Record<string, (params: Record<string, unknown>) => Promise<unknown>>;
schemas: Record<string, TFunction>;
}> {
const dbName =
schema ??
(knex as unknown as {client?: {config?: {connection?: {database?: string}}}})?.client
?.config?.connection?.database;
const procedures: Array<{ROUTINE_NAME: string}> = await knex
.select('ROUTINE_NAME')
.from('information_schema.ROUTINES')
.where('ROUTINE_SCHEMA', dbName)
.where('ROUTINE_TYPE', 'PROCEDURE')
.andWhere('ROUTINE_NAME', 'like', `${namespace}%`);
const handlers: Record<string, (params: Record<string, unknown>) => Promise<unknown>> = {};
const schemas: Record<string, TFunction> = {};
for (const proc of procedures) {
const spName = proc.ROUTINE_NAME;
if (spName.startsWith('_')) continue;
const handlerName = snakeToCamel(spName);
const parameters = await _getParameters(knex, dbName!, spName);
const inParams = parameters.filter(
p => p.PARAMETER_MODE === 'IN' || p.PARAMETER_MODE === 'INOUT',
);
handlers[handlerName] = _makeCallable(knex, spName, inParams);
const paramProperties: Record<string, TSchema> = {};
for (const p of inParams)
paramProperties[snakeToCamel(p.PARAMETER_NAME)] = sqlTypeToTypebox(p.DATA_TYPE);
schemas[handlerName] = Type.Function(
[Type.Object(paramProperties)],
Type.Promise(Type.Unknown()),
);
}
return {handlers, schemas};
}
/**
* Discover **all** stored procedures in the connected database and wire each as
* a synthetic own-property handler on the adapter object so that
* `AdapterBase.findHandler` resolves them before falling back to `exec`.
*
* Each handler is stored under **two keys**:
* - `methodId(camelName)` (e.g. `"sqlitemlistactive"`) — the normalised key
* used by `findHandler`.
* - `camelName` (e.g. `"sqlItemListActive"`) — allows realm handler overrides
* to call the synthetic version via `super.sqlItemListActive(params, $meta)`.
*
* Procedures whose name starts with `_` are **skipped** — they are private DB
* helpers intentionally excluded from the API surface.
*/
export async function bindSyntheticHandlers(
self: Record<string, unknown>,
knex: Knex,
): Promise<void> {
const dbName = _dbName(knex);
if (!dbName) return;
const procedures: Array<{ROUTINE_NAME: string}> = await knex
.select('ROUTINE_NAME')
.from('information_schema.ROUTINES')
.where('ROUTINE_SCHEMA', dbName)
.where('ROUTINE_TYPE', 'PROCEDURE');
for (const proc of procedures) {
const spName = proc.ROUTINE_NAME;
if (spName.startsWith('_')) continue;
const camelName = snakeToCamel(spName);
const parameters = await _getParameters(knex, dbName, spName);
const inParams = parameters.filter(
p => p.PARAMETER_MODE === 'IN' || p.PARAMETER_MODE === 'INOUT',
);
const callable = _makeCallable(knex, spName, inParams);
self[methodId(camelName)] = callable;
self[camelName] = callable;
}
}
/**
* Bind CRUD synthetic handlers for every table in `tables`, keyed by namespace.
* Called from `ready()` when `config.namespace` is set.
*/
export async function bindSyntheticCrud(
self: Record<string, unknown>,
knex: Knex,
namespace: string,
tables: Array<{tableName: string; definition: import('typebox').TObject}>,
): Promise<void> {
const {schemaCrudBindImpl} = await import('./schemaTable.ts');
for (const {tableName, definition} of tables) {
const objectName = snakeToCamel(tableName);
const {handlers} = await schemaCrudBindImpl(
knex,
namespace,
objectName,
definition,
[],
tableName,
);
attachHandlers(self, handlers);
}
}
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