import {z} from 'zod'

export type GetApiAccountsListArgs = {limit?: number | undefined, offset?: number | undefined, showTransactionData?: boolean | undefined, showPerformanceScore?: boolean | undefined, connectionId?: string | undefined};

export type GetApiAccountsListOptions = {baseUrl?: string | undefined, Bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const account = z.object({accountName: z.string(), currency: z.string().optional(), balance: z.object({amount: z.object({value: z.number().int(), majorUnits: z.number().int().optional(), minorUnits: z.number().int().optional(), currency: z.string()}), date: z.string(), type: z.enum(["ClosingAvailable", "ClosingBooked", "ClosingCleared", "Expected", "ForwardAvailable", "Information", "InterimAvailable", "InterimBooked", "InterimCleared", "OpeningAvailable", "OpeningBooked", "OpeningCleared", "PreviouslyClosedBooked"]).optional()}), details: z.object({AER: z.number().gte(0).lte(100).optional(), APR: z.number().gte(0).lte(100).optional(), sortCodeAccountNumber: z.string().min(14).max(20).optional(), iban: z.string().min(18).max(34).optional(), pan: z.string().min(16).max(16).optional(), creditLimit: z.number().int().gte(0).optional(), endDate: z.string().optional(), fixedDate: z.string().optional(), interestFreePeriod: z.number().int().gte(0).optional(), interestType: z.enum(["fixed", "variable"]).optional(), linkedProperty: z.string().optional(), monthlyRepayment: z.number().int().gte(0).optional(), overdraftLimit: z.number().int().gte(0).optional(), postcode: z.string().optional(), runningCost: z.number().int().gte(0).optional(), runningCostPeriod: z.enum(["month", "year"]).optional(), term: z.number().int().gte(0).optional(), yearlyAppreciation: z.number().optional()}), transactionData: z.object({count: z.number().int(), earliestDate: z.string(), lastDate: z.string()}).optional(), dateAdded: z.string(), dateModified: z.string(), id: z.string(), providerName: z.string().optional(), providerReference: z.string().optional(), connectionId: z.string().optional(), providerId: z.string().optional(), providerAccountId: z.string().optional(), providerParentAccountId: z.string().optional(), providerAccountName: z.string().optional(), accountReference: z.string().optional(), accountHolderName: z.string().optional(), accountOpeningDate: z.string().optional(), accountType: z.enum(["personal", "business"]).optional(), productName: z.string().optional(), providerAccountIdentifications: z.array(z.object({identification: z.string(), type: z.string()})).optional(), type: z.enum(["cash:current", "savings", "card", "investment", "loan", "mortgage:repayment", "mortgage:interestOnly", "pension", "pension:definedBenefit", "pension:definedContribution", "asset", "properties:residential", "properties:buyToLet", "crypto"]), performanceScore: z.object({totals: z.object({openingBalance: z.object({date: z.string().optional(), amount: z.object({value: z.number().int(), majorUnits: z.number().int().optional(), minorUnits: z.number().int().optional(), currency: z.string()}).optional()}).optional(), currentBalance: z.object({date: z.string().optional(), amount: z.object({value: z.number().int(), majorUnits: z.number().int().optional(), minorUnits: z.number().int().optional(), currency: z.string()}).optional()}).optional(), contributions: z.number().int().optional(), withdrawals: z.number().int().optional(), nonContributionGrowth: z.number().int().optional(), growthRate: z.number().optional(), annualisedGrowthRate: z.number().optional()}), months: z.array(z.object({date: z.string().optional(), openingBalance: z.number().int().optional(), nonContributionGrowth: z.number().int().optional(), aer: z.number().optional()}))}).optional(), additionalBalances: z.array(z.object({amount: z.object({value: z.number().int(), majorUnits: z.number().int().optional(), minorUnits: z.number().int().optional(), currency: z.string()}), date: z.string(), type: z.enum(["ClosingAvailable", "ClosingBooked", "ClosingCleared", "Expected", "ForwardAvailable", "Information", "InterimAvailable", "InterimBooked", "InterimCleared", "OpeningAvailable", "OpeningBooked", "OpeningCleared", "PreviouslyClosedBooked"]).optional()})).optional()});

export const links = z.object({next: z.string().optional(), prev: z.string().optional(), self: z.string()});

export const getApiAccountsListResponse = z.object({data: z.array(account).optional(), links: links.optional(), meta: z.object({}).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
};

/**
 * Retrieve all accounts for a user without additional data
 * 
 * GET /accounts-list
 */
export const getApiAccountsList = async (args: GetApiAccountsListArgs, options?: GetApiAccountsListOptions) => {
const {baseUrl = "https://api.moneyhub.co.uk/v2.0", fetch: fetchFn = fetch, Bearer} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (args.showTransactionData != null) query.append("showTransactionData", String(args.showTransactionData))
if (args.showPerformanceScore != null) query.append("showPerformanceScore", String(args.showPerformanceScore))
if (args.connectionId != null) query.append("connectionId", String(args.connectionId))
if (Bearer !== undefined) headers.set("Authorization", Bearer)

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