import {z} from 'zod'

export type CreateApiCompanySettingsArgs = {body: {customer_id?: string | undefined, fiscal_year_start_month?: number | undefined, vat_period_months?: number | undefined, vat_period_valid_from?: string | undefined}};

export type CreateApiCompanySettingsOptions = {baseUrl?: string | undefined, firebaseToken?: string | undefined, fetch?: typeof fetch | undefined};

export const companyProfile = z.object({customer_id: z.string().optional(), legal_name: z.string().optional(), business_id: z.string().optional(), vat_number: z.string().optional(), country_code: z.string().optional(), currency: z.string().optional(), fiscal_year_start_month: z.number().int().optional(), vat_period_months: z.number().int().optional(), vat_period_source: z.enum(["dated", "column", "default"]).optional(), company_form: z.string().optional(), statement_format: z.string().optional(), editable: z.boolean().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
};

/**
 * Update company accounting settings (admin/approver only)
 * 
 * POST /company/settings
 */
export const createApiCompanySettings = async (args: CreateApiCompanySettingsArgs, options?: CreateApiCompanySettingsOptions) => {
const {baseUrl = "https://api.app.lastaccountingcompany.com/portal", fetch: fetchFn = fetch, firebaseToken} = options ?? {}

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

if (firebaseToken !== undefined) headers.set('authorization', `Bearer ${firebaseToken}`)

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