therefore/examples/docs/02-openapi-client.client.ts at main · skyleague/therefore · GitHub

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/**
 * Generated by @skyleague/therefore
 * Do not manually touch this
 */
// biome-ignore-all lint: this file is generated
/* eslint-disable */

import type { KyInstance, Options, ResponsePromise } from 'ky'
import ky from 'ky'
import type { ZodError, ZodSafeParseResult } from 'zod/v4'

import { CreateTodoRequest, CreateTodoResponse, ListTodosResponse } from './02-openapi-client.zod.js'

export type Status<Major> = Major extends string
    ? Major extends `1${number}`
        ? 'informational'
        : Major extends `2${number}`
          ? 'success'
          : Major extends `3${number}`
            ? 'redirection'
            : Major extends `4${number}`
              ? 'client-error'
              : 'server-error'
    : undefined
export interface SuccessResponse<StatusCode extends string, T> {
    success: true
    statusCode: StatusCode
    status: Status<StatusCode>
    headers: Headers
    right: T
}
export interface FailureResponse<StatusCode = string, T = unknown, Where = never, HeaderResponse = Headers> {
    success: false
    statusCode: StatusCode
    status: Status<StatusCode>
    headers: HeaderResponse
    error: ZodError<T> | undefined
    left: T
    where: Where
}
export type StatusCode<Major extends number = 1 | 2 | 3 | 4 | 5> = `${Major}${number}`

/**
 * Todo API
 */
export class TodoClient {
    public client: KyInstance

    public constructor({
        prefixUrl,
        options,
        client = ky,
    }: {
        prefixUrl: string
        options?: Options
        client?: KyInstance
    }) {
        this.client = client.extend({ prefixUrl, throwHttpErrors: false, ...options })
    }

    /**
     * POST /todos
     */
    public createTodo({
        body,
    }: {
        body: CreateTodoRequest
    }): Promise<
        | SuccessResponse<'201', CreateTodoResponse>
        | FailureResponse<undefined, unknown, 'request:body', undefined>
        | FailureResponse<StatusCode<2>, string, 'response:body', Headers>
        | FailureResponse<StatusCode<1 | 3 | 4 | 5>, string, 'response:statuscode', Headers>
    > {
        const _body = this.validateRequestBody(CreateTodoRequest, body)
        if ('left' in _body) {
            return Promise.resolve(_body)
        }

        return this.awaitResponse(
            this.client.post('todos', {
                json: _body.right,
            }),
            {
                201: CreateTodoResponse,
            },
            'json',
        ) as ReturnType<this['createTodo']>
    }

    /**
     * GET /todos
     */
    public listTodos(): Promise<
        | SuccessResponse<'200', ListTodosResponse>
        | FailureResponse<StatusCode<2>, string, 'response:body', Headers>
        | FailureResponse<StatusCode<1 | 3 | 4 | 5>, string, 'response:statuscode', Headers>
    > {
        return this.awaitResponse(
            this.client.get('todos', {}),
            {
                200: ListTodosResponse,
            },
            'json',
        ) as ReturnType<this['listTodos']>
    }

    public validateRequestBody<Body>(
        parser: { safeParse: (o: unknown) => ZodSafeParseResult<Body> },
        body: unknown,
    ): { right: Body } | FailureResponse<undefined, unknown, 'request:body', undefined> {
        const _body = parser.safeParse(body)
        if (!_body.success) {
            return {
                success: false as const,
                statusCode: undefined,
                status: undefined,
                headers: undefined,
                left: body,
                error: _body.error,
                where: 'request:body',
            } satisfies FailureResponse<undefined, unknown, 'request:body', undefined>
        }
        return { right: _body.data }
    }
    public async awaitResponse<I, S extends Record<PropertyKey, { safeParse: (o: unknown) => ZodSafeParseResult<I> }>>(
        response: ResponsePromise<I>,
        schemas: S,
        responseType?: 'json' | 'text',
    ) {
        const _body = (await (responseType !== undefined ? response[responseType]() : response.text())) as I
        const result = await response
        const status =
            result.status < 200
                ? 'informational'
                : result.status < 300
                  ? 'success'
                  : result.status < 400
                    ? 'redirection'
                    : result.status < 500
                      ? 'client-error'
                      : 'server-error'
        const validator = schemas[result.status] ?? schemas.default
        const body = validator?.safeParse?.(_body)
        if (result.status < 200 || result.status >= 300) {
            return {
                success: false as const,
                statusCode: result.status.toString(),
                status,
                headers: result.headers,
                left: body?.success ? body.data : _body,
                error: body !== undefined && !body.success ? body.error : undefined,
                where: 'response:statuscode',
            }
        }
        if (body === undefined || !body.success) {
            return {
                success: body === undefined,
                statusCode: result.status.toString(),
                status,
                headers: result.headers,
                left: _body,
                error: body?.error,
                where: 'response:body',
            }
        }
        return { success: true as const, statusCode: result.status.toString(), status, headers: result.headers, right: body.data }
    }
}