import {z} from 'zod'

export type LeadCustomerDetails = {description?: string | undefined, lastName: string, firstName: string, salutation?: string | undefined, middleName?: string | undefined, company: string, street?: string | undefined, city?: string | undefined, state?: string | undefined, postalCode?: string | undefined, country?: string | undefined, latitude?: string | undefined, longitude?: string | undefined, phone?: string | undefined, mobileNumber: string, email: string, website?: string | undefined, industry?: string | undefined, annualRevenue?: number | undefined, numberofEmployees?: number | undefined, businessOrganizationType?: string | undefined, companyRegistration?: string | undefined, companySize?: string | undefined, preferredCommunication?: string | undefined, domainName?: string | undefined, externalChannel?: string | undefined, notes?: string | undefined, preferredContactSlot?: string | undefined, feasibilityDetails?: string | undefined, feasibilityStatus?: string | undefined, utmSource?: string | undefined, networkFeasibility?: string | undefined, solutionType?: string | undefined, sales?: string | undefined, segment?: string | undefined, region?: string | undefined, opco: string, id?: string | undefined, idType?: string | undefined};

export type LeadProductDetails = {productServiceDescription?: string | undefined, serviceRequiredPeriod?: string | undefined, typeofProduct?: string | undefined, productCode?: string | undefined};

export type LeadCampaignDetails = {campaignName?: string | undefined, campaignType?: string | undefined, campaignOwner?: string | undefined, campaignPromotionId?: string | undefined};

export type LeadLeadDetails = {leadSource?: string | undefined, leadOrigin?: string | undefined, interactionReason?: string | undefined, leadReference?: string | undefined, subSegment?: string | undefined, partnerName?: string | undefined, createdDate?: string | undefined};

export type SalesLeadCreate = {customerDetails: LeadCustomerDetails, productDetails?: LeadProductDetails | undefined, campaignDetails?: LeadCampaignDetails | undefined, leadDetails?: LeadLeadDetails | undefined};

export type CreateApiLeadArgs = {transactionId?: string | undefined, 'x-origin-channelId'?: string | undefined, body: SalesLeadCreate};

export type CreateApiLeadOptions = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const createSalesLeadResponse = z.object({statusCode: z.string().optional(), statusMessage: z.string().optional(), supportMessage: z.string().optional(), transactionId: z.string().optional(), id: z.string().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
};

/**
 * Creates a SalesLead
 * 
 * POST /lead
 */
export const createApiLead = async (args: CreateApiLeadArgs, options?: CreateApiLeadOptions) => {
const {baseUrl = "https://za.api.mtn.com/sales/v1", fetch: fetchFn = fetch, OAuth2} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json;charset=utf-8")
headers.set('accept', "application/json;charset=utf-8")

if (args.transactionId != null) headers.set("transactionId", String(args.transactionId))
if (args['x-origin-channelId'] != null) headers.set("x-origin-channelId", String(args['x-origin-channelId']))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

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