import {z} from 'zod'

export type GetApiV1CompaniesCodeForecastsArgs = {code: string, years?: number | undefined, limit?: (number | null) | undefined, offset?: number | undefined};

export type GetApiV1CompaniesCodeForecastsOptions = {baseUrl: string, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const guidanceValues = z.object({revenue: z.number().int().nullable().optional(), operating_revenues: z.number().int().nullable().optional(), gross_operating_revenues: z.number().int().nullable().optional(), bank_ordinary_revenues: z.number().int().nullable().optional(), operating_income: z.number().int().nullable().optional(), ordinary_income: z.number().int().nullable().optional(), profit_before_tax: z.number().int().nullable().optional(), profit: z.number().int().nullable().optional(), net_income: z.number().int().nullable().optional(), eps: z.number().nullable().optional()});

export const managementForecastOut = z.object({securities_code: z.string().nullable().optional(), company_name: z.string().nullable().optional(), company_name_en: z.string().nullable().optional(), fiscal_year_end: z.string().nullable().optional(), period_type: z.string().nullable().optional(), filing_date: z.string().nullable().optional(), accounting_standard: z.string().nullable().optional(), tdnet_pdf_url: z.string().nullable().optional(), forecast_revenue: z.number().int().nullable().optional(), forecast_operating_income: z.number().int().nullable().optional(), forecast_ordinary_income: z.number().int().nullable().optional(), forecast_net_income: z.number().int().nullable().optional(), forecast_eps: z.number().nullable().optional(), forecast_revenue_change_pct: z.number().nullable().optional(), forecast_operating_income_change_pct: z.number().nullable().optional(), forecast_net_income_change_pct: z.number().nullable().optional(), source_type: z.enum(["earnings_release", "forecast_revision"]), published_at: z.string().nullable().optional(), forecast_period_start: z.string().nullable().optional(), forecast_period_end: z.string().nullable().optional(), forecast_period_type: z.enum(["FY", "Q2"]).nullable().optional(), forecast_period_verified: z.boolean(), is_consolidated: z.boolean().nullable().optional(), forecast_operating_revenues: z.number().int().nullable().optional(), forecast_gross_operating_revenues: z.number().int().nullable().optional(), forecast_bank_ordinary_revenues: z.number().int().nullable().optional(), forecast_profit_before_tax: z.number().int().nullable().optional(), forecast_profit: z.number().int().nullable().optional(), previous_forecast: guidanceValues.nullable().optional(), previous_unreported_fields: z.array(z.string()).optional(), current_unreported_fields: z.array(z.string()).optional(), revision_reason: z.string().nullable().optional()});

export const axioraApiSchemasMeta = z.record(z.string(), z.unknown());

export const forecastSourceNotice = z.object({published_at: z.string(), title: z.string(), tdnet_pdf_url: z.string(), disposition: z.enum(["parsed", "archive_only", "held"])});

export const managementForecastResponse = z.object({data: z.array(managementForecastOut), meta: axioraApiSchemasMeta, revision_sources: z.array(forecastSourceNotice)});

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 Forecasts
 * 
 * GET /v1/companies/{code}/forecasts
 */
export const getApiV1CompaniesCodeForecasts = async (args: GetApiV1CompaniesCodeForecastsArgs, options: GetApiV1CompaniesCodeForecastsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args.years != null) query.append("years", String(args.years))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/companies/${encodeURIComponent(String(args.code))}/forecasts${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(managementForecastResponse, await res.json())
};