import {z} from 'zod'

export type CreateApiV2TasksArgs = {name?: string | undefined, locationID?: number | undefined, due?: number | undefined, type?: number | undefined, templateID?: number | undefined, body: {name?: string | undefined, locationID?: number | undefined, type?: number | undefined, due?: number | undefined, priority?: number | undefined, scheduledStart?: number | undefined, scheduledEnd?: number | undefined}};

export type CreateApiV2TasksOptions = {baseUrl: string, BasicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const createApiV2TasksResponse = z.object({taskID: z.number().int().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
};

/**
 * New Task
 * 
 * POST /v2/tasks
 */
export const createApiV2Tasks = async (args: CreateApiV2TasksArgs, options: CreateApiV2TasksOptions) => {
const {baseUrl, fetch: fetchFn = fetch, BasicAuth} = options ?? {}

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

if (args.name != null) query.append("name", String(args.name))
if (args.locationID != null) query.append("locationID", String(args.locationID))
if (args.due != null) query.append("due", String(args.due))
if (args.type != null) query.append("type", String(args.type))
if (args.templateID != null) query.append("templateID", String(args.templateID))
if (BasicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${BasicAuth.username}:${BasicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/tasks${query.size > 0 ? `?${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(createApiV2TasksResponse, await res.json())
};