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import * as Context from "effect/Context"
import * as Effect from "effect/Effect"
import * as Exit from "effect/Exit"
import * as Scope from "effect/Scope"
import type { SqlClient } from "effect/unstable/sql/SqlClient"
import type { SqlError } from "effect/unstable/sql/SqlError"
import type { EffectCacheShape } from "drizzle-orm/cache/core/cache-effect"
import type { WithCacheConfig } from "drizzle-orm/cache/core/types"
import type { EffectDrizzleQueryError } from "drizzle-orm/effect-core/errors"
import type { EffectLoggerShape } from "drizzle-orm/effect-core/logger"
import type { QueryEffectHKTBase } from "drizzle-orm/effect-core/query-effect"
import { entityKind } from "drizzle-orm/entity"
import type { AnyRelations } from "drizzle-orm/relations"
import type { RelationalQueryMapperConfig } from "drizzle-orm/relations"
import type { Query } from "drizzle-orm/sql/sql"
import type { SQLiteAsyncDialect } from "drizzle-orm/sqlite-core/dialect"
import { SQLiteEffectPreparedQuery, SQLiteEffectSession, SQLiteEffectTransaction } from "../sqlite-core/effect/session"
import type { SelectedFieldsOrdered } from "drizzle-orm/sqlite-core/query-builders/select.types"
import type { PreparedQueryConfig, SQLiteExecuteMethod, SQLiteTransactionConfig } from "drizzle-orm/sqlite-core/session"
export interface EffectSQLiteQueryEffectHKT extends QueryEffectHKTBase {
readonly error: EffectDrizzleQueryError
readonly context: never
}
export type EffectSQLiteRunResult = readonly never[]
export interface EffectSQLiteSessionOptions {
logger: EffectLoggerShape
cache: EffectCacheShape
useJitMappers?: boolean
}
export class EffectSQLiteSession<TRelations extends AnyRelations> extends SQLiteEffectSession<
EffectSQLiteQueryEffectHKT,
EffectSQLiteRunResult,
TRelations
> {
static override readonly [entityKind]: string = "EffectSQLiteSession"
constructor(
private client: SqlClient,
dialect: SQLiteAsyncDialect,
protected relations: TRelations,
private options: EffectSQLiteSessionOptions,
) {
super(dialect)
}
override prepareQuery<T extends PreparedQueryConfig = PreparedQueryConfig>(
query: Query,
fields: SelectedFieldsOrdered | undefined,
executeMethod: SQLiteExecuteMethod,
customResultMapper?: (rows: unknown[][], mapColumnValue?: (value: unknown) => unknown) => unknown,
queryMetadata?: {
type: "select" | "update" | "delete" | "insert"
tables: string[]
},
cacheConfig?: WithCacheConfig,
): SQLiteEffectPreparedQuery<T, EffectSQLiteQueryEffectHKT> {
return new SQLiteEffectPreparedQuery<T, EffectSQLiteQueryEffectHKT>(
(params, method) => this.execute(query, params, method),
query,
this.options.logger,
this.options.cache,
queryMetadata,
cacheConfig,
fields,
executeMethod,
this.options.useJitMappers,
customResultMapper,
undefined,
undefined,
this.isInTransaction(),
)
}
override prepareRelationalQuery<T extends PreparedQueryConfig = PreparedQueryConfig>(
query: Query,
fields: SelectedFieldsOrdered | undefined,
executeMethod: SQLiteExecuteMethod,
customResultMapper: (rows: Record<string, unknown>[], mapColumnValue?: (value: unknown) => unknown) => unknown,
config: RelationalQueryMapperConfig,
): SQLiteEffectPreparedQuery<T, EffectSQLiteQueryEffectHKT, true> {
return new SQLiteEffectPreparedQuery<T, EffectSQLiteQueryEffectHKT, true>(
(params, method) => this.execute(query, params, method),
query,
this.options.logger,
this.options.cache,
undefined,
undefined,
fields,
executeMethod,
this.options.useJitMappers,
customResultMapper,
true,
config,
this.isInTransaction(),
)
}
private execute(query: Query, params: unknown[], method: SQLiteExecuteMethod | "values") {
const statement = this.client.unsafe(query.sql, params)
if (method === "values") return statement.values
if (method === "get") return statement.withoutTransform.pipe(Effect.map((rows) => rows[0]))
return statement.withoutTransform
}
private isInTransaction() {
return Effect.serviceOption(this.client.transactionService).pipe(Effect.map((option) => option._tag === "Some"))
}
private executeTransactionStatement(connection: Effect.Success<SqlClient["reserve"]>, query: string) {
return connection.executeUnprepared(query, [], undefined).pipe(Effect.asVoid)
}
private withTransaction<A, E, R>(effect: Effect.Effect<A, E, R>, config: SQLiteTransactionConfig | undefined) {
return Effect.uninterruptibleMask((restore) =>
Effect.withFiber<A, E | SqlError, R>((fiber) => {
const services = fiber.context
const connectionOption = Context.getOption(services, this.client.transactionService)
const connection: Effect.Effect<
readonly [Scope.Closeable | undefined, Effect.Success<SqlClient["reserve"]>],
SqlError
> =
connectionOption._tag === "Some"
? Effect.succeed([undefined, connectionOption.value[0]] as const)
: Scope.make().pipe(
Effect.flatMap((scope) =>
Scope.provide(this.client.reserve, scope).pipe(
Effect.map((connection) => [scope, connection] as const),
Effect.catch((error) =>
Scope.close(scope, Exit.fail(error)).pipe(Effect.andThen(Effect.fail(error))),
),
),
),
)
const id = connectionOption._tag === "Some" ? connectionOption.value[1] + 1 : 0
return connection.pipe(
Effect.flatMap(([scope, connection]) => {
const transaction = this.executeTransactionStatement(
connection,
id === 0 ? `begin ${config?.behavior ?? "deferred"}` : `savepoint effect_sql_${id}`,
).pipe(
Effect.flatMap(() =>
Effect.provideContext(
restore(effect),
Context.add(services, this.client.transactionService, [connection, id]),
).pipe(
Effect.exit,
Effect.flatMap((exit) => {
const finalize = Exit.isSuccess(exit)
? id === 0
? this.executeTransactionStatement(connection, "commit").pipe(
// SQLite keeps the transaction open after deferred constraint commit failures.
Effect.catch((error) =>
this.executeTransactionStatement(connection, "rollback").pipe(
Effect.catch(() => Effect.void),
Effect.andThen(Effect.fail(error)),
),
),
)
: this.executeTransactionStatement(connection, `release savepoint effect_sql_${id}`)
: id === 0
? this.executeTransactionStatement(connection, "rollback")
: this.executeTransactionStatement(connection, `rollback to savepoint effect_sql_${id}`).pipe(
Effect.andThen(
this.executeTransactionStatement(connection, `release savepoint effect_sql_${id}`),
),
)
return finalize.pipe(Effect.flatMap(() => exit))
}),
),
),
)
return scope === undefined
? transaction
: transaction.pipe(Effect.onExit((exit) => Scope.close(scope, exit)))
}),
)
}),
)
}
override transaction<A, E, R>(
transaction: (tx: EffectSQLiteTransaction<TRelations>) => Effect.Effect<A, E, R>,
config?: SQLiteTransactionConfig,
): Effect.Effect<A, E | SqlError, R> {
const { dialect, relations } = this
return this.withTransaction(
Effect.gen({ self: this }, function* () {
const tx = new EffectSQLiteTransaction<TRelations>(dialect, this, relations)
return yield* transaction(tx)
}),
config,
)
}
}
export class EffectSQLiteTransaction<TRelations extends AnyRelations> extends SQLiteEffectTransaction<
EffectSQLiteQueryEffectHKT,
EffectSQLiteRunResult,
TRelations
> {
static override readonly [entityKind]: string = "EffectSQLiteTransaction"
override transaction: <A, E, R>(
transaction: (
tx: SQLiteEffectTransaction<EffectSQLiteQueryEffectHKT, EffectSQLiteRunResult, TRelations>,
) => Effect.Effect<A, E, R>,
) => Effect.Effect<A, SqlError | E, R> = (tx) => this.session.transaction(tx)
}
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