import {z} from 'zod'

export type SignupGoal = {kind?: ('improve_skill' | 'lose_weight' | 'increase_strength' | 'build_muscles') | undefined, start_date?: string | undefined, end_date?: (string | null) | undefined, technique_guide_id?: (number | null) | undefined, current_weight?: (number | null) | undefined, planned_weight?: (number | null) | undefined, end_weight?: (number | null) | undefined, exercise_id?: (number | null) | undefined, muscle?: (string | null) | undefined};

export type SignupUser = {email: string, username: string, name: string, password: string, gender?: string | undefined, level?: string | undefined, height?: number | undefined, height_unit?: string | undefined, weight?: number | undefined, goal_weight?: number | undefined, weight_unit?: string | undefined, goal_weight_unit?: string | undefined, max_pushups?: number | undefined, max_pullups?: number | undefined, max_dips?: number | undefined, max_squats?: number | undefined, device_id?: string | undefined, main_goals?: Array<string> | undefined, goal?: SignupGoal | undefined};

export type SignupRequest = {user: SignupUser};

export type CreateApiV1AuthSignupArgs = {body: SignupRequest};

export type CreateApiV1AuthSignupOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiV1AuthSignupResponse = z.object({data: z.object({}).optional(), meta: z.object({token: z.string().optional()}).optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Register a new user
 * 
 * POST /v1/auth/signup
 */
export const createApiV1AuthSignup = async (args: CreateApiV1AuthSignupArgs, options?: CreateApiV1AuthSignupOptions) => {
const {baseUrl = "http://localhost:3000", fetch: fetchFn = fetch} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

const url = `${baseUrl.replace(/\/+$/, '')}/v1/auth/signup${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(createApiV1AuthSignupResponse, await res.json())
};