import {z} from 'zod'

export type GetApiFinancialsIncomeStatementSymbolArgs = {symbol: string, period?: ('annual' | 'quarter') | undefined, datatype?: ('json' | 'csv') | undefined, limit?: number | undefined};

export type GetApiFinancialsIncomeStatementSymbolOptions = {baseUrl: string, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiFinancialsIncomeStatementSymbolResponse = z.array(z.object({date: z.string().optional(), symbol: z.string().optional(), "reported-currency": z.string().optional(), cik: z.string().optional(), "filling-date": z.string().optional(), "accepted-date": z.string().optional(), "calendar-year": z.string().optional(), period: z.string().optional(), revenue: z.number().optional(), "cost-of-revenue": z.number().optional(), "gross-profit": z.number().optional(), "gross-profit-ratio": z.number().optional(), "research-and-development-expenses": z.number().optional(), "general-and-administrative-expenses": z.number().optional(), "selling-and-marketing-expenses": z.number().optional(), "selling-general-and-administrative-expenses": z.number().optional(), "other-expenses": z.number().optional(), "operating-expenses": z.number().optional(), "cost-and-expenses": z.number().optional(), "interest-income": z.number().optional(), "interest-expense": z.number().optional(), "depreciation-and-amortization": z.number().optional(), ebitda: z.number().optional(), ebitdaratio: z.number().optional(), "operating-income": z.number().optional(), "operating-income-ratio": z.number().optional(), "total-other-income-expenses-net": z.number().optional(), "income-before-tax": z.number().optional(), "income-before-tax-ratio": z.number().optional(), "income-tax-expense": z.number().optional(), "net-income": z.number().optional(), "net-income-ratio": z.number().optional(), eps: z.number().optional(), epsdiluted: z.number().optional(), "weighted-average-shs-out": z.number().optional(), "weighted-average-shs-out-dil": z.number().optional(), link: z.string().optional(), "final-link": 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
};

/**
 * Get Annual Income Statement
 * 
 * GET /financials/income-statement/{symbol}
 */
export const getApiFinancialsIncomeStatementSymbol = async (args: GetApiFinancialsIncomeStatementSymbolArgs, options: GetApiFinancialsIncomeStatementSymbolOptions) => {
const {baseUrl, fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (args.period != null) query.append("period", String(args.period))
if (args.datatype != null) query.append("datatype", String(args.datatype))
if (args.limit != null) query.append("limit", String(args.limit))
if (ApiKeyAuth !== undefined) headers.set("X-API-KEY", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/financials/income-statement/${encodeURIComponent(String(args.symbol))}${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(getApiFinancialsIncomeStatementSymbolResponse, await res.json())
};