import {z} from 'zod'

export type CreateProjectionFromTemplateRequestV1 = {templateId?: (number | null) | undefined, name?: (string | null) | undefined} | {[key: string]: unknown};

export type CreateApiApiV1ProjectionsArgs = {TemplateId?: number | undefined, Name?: string | undefined, body: CreateProjectionFromTemplateRequestV1};

export type CreateApiApiV1ProjectionsOptions = {baseUrl: string, APIToken?: string | undefined, fetch?: typeof fetch | undefined};

export const createProjectionFromTemplateResponseV1 = z.object({id: z.number().int().optional(), name: z.string().nullable().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
};

/**
 * Create a projection using an existing projection template.
 * 
 * POST /api/v1/Projections
 */
export const createApiApiV1Projections = async (args: CreateApiApiV1ProjectionsArgs, options: CreateApiApiV1ProjectionsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIToken} = options ?? {}

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

if (args.TemplateId != null) query.append("TemplateId", String(args.TemplateId))
if (args.Name != null) query.append("Name", String(args.Name))
if (APIToken !== undefined) headers.set('authorization', `Bearer ${APIToken}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/Projections${query.size > 0 ? `?${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(createProjectionFromTemplateResponseV1, await res.json())
};