import {z} from 'zod'

export type TodoRelationship = {todoType?: {data: {type: 'todoType', id: string}} | undefined} | {[key: string]: {data: {type: 'property' | 'salesApplicant' | 'lettingsApplicant' | 'sale' | 'salesOffer' | 'lettingsOffer' | 'valuation' | 'viewing' | 'maintenanceJob' | 'inspection' | 'tenancy' | 'moveOut' | 'lettingsApplication' | 'arrears' | 'person' | 'owner' | 'workflowInstance' | 'compliance' | 'safetyCertificate' | 'insurancePolicy' | 'enquiry' | 'tenancyNotice', id: string}}};

export type CreateApiTodosArgs = {body: {data: {type: 'todo', attributes: {title: string, body?: string | undefined, due_date?: string | undefined, user_uuid?: string | undefined, note?: (string | null) | undefined}, relationships?: TodoRelationship | undefined}}};

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

export const meta = z.object({});

export const link = z.union([z.string(), z.object({href: z.string(), meta: meta.optional()})]);

export const todo = z.object({id: z.string().optional(), type: z.literal("todo").optional(), attributes: z.object({subject_id: z.string().nullable().optional(), subject_type: z.enum(["property", "lettingsApplicant", "salesApplicant", "sale", "valuation", "viewing", "null"]).nullable().optional(), title: z.string().optional(), body: z.string().nullable().optional(), due_date: z.string().nullable().optional(), created_at: z.string().optional(), updated_at: z.string().optional()}).optional(), relationships: z.object({branch: z.object({data: z.object({type: z.literal("branch"), id: z.string()}).nullable().optional(), links: z.object({self: link.optional(), related: link.optional()}).optional()}).optional(), negotiator: z.object({data: z.object({type: z.literal("negotiator"), id: z.string()}).nullable().optional(), links: z.object({self: link.optional(), related: link.optional()}).optional()}).optional(), property: z.object({data: z.object({type: z.literal("property"), id: z.string()}).nullable().optional(), links: z.object({self: link.optional(), related: link.optional()}).optional()}).optional(), sale: z.object({data: z.object({type: z.literal("sale"), id: z.string()}).nullable().optional(), links: z.object({self: link.optional(), related: link.optional()}).optional()}).optional(), salesApplicant: z.object({data: z.object({type: z.literal("salesApplicant"), id: z.string()}).nullable().optional(), links: z.object({self: link.optional(), related: link.optional()}).optional()}).optional(), lettingsApplicant: z.object({data: z.object({type: z.literal("lettingsApplicant"), id: z.string()}).nullable().optional(), links: z.object({self: link.optional(), related: link.optional()}).optional()}).optional(), valuation: z.object({data: z.object({type: z.literal("valuation"), id: z.string()}).nullable().optional(), links: z.object({self: link.optional(), related: link.optional()}).optional()}).optional(), viewing: z.object({data: z.object({type: z.literal("viewing"), id: z.string()}).nullable().optional(), links: z.object({self: link.optional(), related: link.optional()}).optional()}).optional()}).optional()});

export const createApiTodosResponse = z.object({data: todo});

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 Task
 * 
 * POST /todos
 */
export const createApiTodos = async (args: CreateApiTodosArgs, options?: CreateApiTodosOptions) => {
const {baseUrl = "https://street.co.uk/open-api/v1", fetch: fetchFn = fetch, yourApiToken} = options ?? {}

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

if (yourApiToken !== undefined) headers.set('authorization', `Bearer ${yourApiToken}`)

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