import {z} from 'zod'

export type IntegationStatus = 'active' | 'inactive';

export type BoolParam = 'true' | 'false';

export type GetApiIntegrationsArgs = {status?: (IntegationStatus | null) | undefined, include_coverage?: (BoolParam | null) | undefined};

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

export const integationStatus = z.enum(["active", "inactive"]);

export const api = z.enum(["Point of Sale", "eCommerce", "Accounting", "Invoicing", "Communication", "Banking", "Custom", "Payment", "Property Management System", "Spend Management"]);

export const integrationsPostConnectionItemConfig = z.object({enabled: z.boolean().optional(), allow_multiple: z.boolean().optional()});

export const integrationsPostConnectionItem = z.object({id: z.string(), title: z.string(), optional: z.boolean(), resource: z.string(), config: integrationsPostConnectionItemConfig.optional()});

export const coverageStatus = z.enum(["SUPPORTED", "NOT_IMPLEMENTED", "NOT_SUPPORTED", "UNDER_ANALYSIS"]);

export const coverageItem = z.object({operation: z.string(), status: coverageStatus});

export const visibility = z.enum(["consumer", "connector", "both"]);

export const integrationsCredentialItem = z.object({name: z.string(), optional: z.boolean().optional(), visibility: visibility.nullable().optional()});

export const integrationItem = z.object({integrationid: z.number().int(), name: z.string(), description: z.string().nullable().optional(), status: integationStatus, api: api, logo_url: z.string(), icon_url: z.string(), post_connections: z.array(integrationsPostConnectionItem).nullable().optional(), operations_coverage: z.array(coverageItem).nullable().optional(), credentials: z.array(integrationsCredentialItem).nullable().optional(), supported_countries: z.array(z.string()).nullable().optional(), local_agent: z.boolean().optional()});

export const getApiIntegrationsResponse = z.array(integrationItem);

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
};

/**
 * Get list of integrations
 * 
 * GET /integrations
 */
export const getApiIntegrations = async (args: GetApiIntegrationsArgs, options?: GetApiIntegrationsOptions) => {
const {baseUrl = "https://api.chift.eu", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.status != null) query.append("status", String(args.status))
if (args.include_coverage != null) query.append("include_coverage", String(args.include_coverage))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

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

const res = await fetchFn(url, {method: "GET", headers})

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

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