import {z} from 'zod'

export type GetApiBooksReportsCashFlowArgs = {booksId?: string | undefined, startDate?: string | undefined, endDate?: string | undefined, period?: ('daily' | 'monthly' | 'quarterly' | 'yearly') | undefined, includeOnlyClosed?: boolean | undefined};

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

export const booksAPIReportColumn = z.object({endDate: z.string().nullable().optional(), isPartial: z.boolean(), label: z.string(), startDate: z.string().nullable().optional()});

export const dollar = z.number();

export const booksAPICashBalanceRow: z.ZodType<BooksAPICashBalanceRow> = z.object({balances: z.array(dollar), children: z.array(z.lazy(() => booksAPICashBalanceRow)), ledgerId: z.string(), name: z.string(), parentId: z.string().nullable().optional(), sortCode: z.string(), totalBalances: z.array(dollar)});

export const booksAPICashFlowLedgerRow: z.ZodType<BooksAPICashFlowLedgerRow> = z.object({children: z.array(z.lazy(() => booksAPICashFlowLedgerRow)), ledgerId: z.string(), name: z.string(), netCashFlows: z.array(dollar), parentId: z.string().nullable().optional(), totalNetCashFlows: z.array(dollar)});

export const booksAPICashFlowReport = z.object({columns: z.array(booksAPIReportColumn), endingBalances: z.array(booksAPICashBalanceRow), endingCashBalances: z.array(dollar), ledgers: z.array(booksAPICashFlowLedgerRow), startingBalances: z.array(booksAPICashBalanceRow), startingCashBalances: z.array(dollar)});

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 a cash flow report
 * 
 * GET /books/reports/cash-flow
 */
export const getApiBooksReportsCashFlow = async (args: GetApiBooksReportsCashFlowArgs, options?: GetApiBooksReportsCashFlowOptions) => {
const {baseUrl = "https://api.mercury.com/api/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.booksId != null) query.append("booksId", String(args.booksId))
if (args.startDate != null) query.append("startDate", String(args.startDate))
if (args.endDate != null) query.append("endDate", String(args.endDate))
if (args.period != null) query.append("period", String(args.period))
if (args.includeOnlyClosed != null) query.append("includeOnlyClosed", String(args.includeOnlyClosed))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/books/reports/cash-flow${query.size > 0 ? `?${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(booksAPICashFlowReport, await res.json())
};