import {z} from 'zod'

export type InstallmentPreferences = {cadence?: ('none' | 'fullPay' | 'weekly' | 'everyOtherWeek' | 'monthly' | 'quarterly' | 'semiannually' | 'annually' | 'thirtyDays' | 'everyNDays') | undefined, anchorMode?: ('generateDay' | 'termStartDay' | 'dueDay') | undefined, generateLeadDays?: number | undefined, dueLeadDays?: number | undefined, installmentWeights: Array<number>, maxInstallmentsPerTerm?: number | undefined, installmentPlanName?: string | undefined, anchorType?: ('none' | 'dayOfMonth' | 'anchorTime' | 'dayOfWeek' | 'weekOfMonth') | undefined, dayOfMonth?: number | undefined, dayOfWeek?: ('monday' | 'tuesday' | 'wednesday' | 'thursday' | 'friday' | 'saturday' | 'sunday') | undefined, weekOfMonth?: ('none' | 'first' | 'second' | 'third' | 'fourth' | 'fifth') | undefined, anchorTime?: string | undefined, autopayLeadDays?: number | undefined};

export type Preferences = {installmentPreferences?: InstallmentPreferences | undefined};

export type ContactRoles = {contactLocator: unknown, roles: Array<string>};

export type AccountCreateRequest = {type: string, autoValidate?: boolean | undefined, data?: {[key: string]: Record<string, never>} | undefined, delinquencyPlanName?: string | undefined, shortfallTolerancePlanName?: string | undefined, autoRenewalPlanName?: string | undefined, excessCreditPlanName?: string | undefined, preferences?: Preferences | undefined, billingLevel?: ('account' | 'inherit' | 'policy') | undefined, region?: string | undefined, invoiceDocument?: string | undefined, timezone?: string | undefined, contacts?: Array<ContactRoles> | undefined, invoicingPlanName?: string | undefined, paymentExecutionRetryPlanName?: string | undefined};

export type CreateApiPolicyTenantLocatorAccountsArgs = {tenantLocator: string, body: AccountCreateRequest};

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

export const installmentPreferences = z.object({cadence: z.enum(["none", "fullPay", "weekly", "everyOtherWeek", "monthly", "quarterly", "semiannually", "annually", "thirtyDays", "everyNDays"]).optional(), anchorMode: z.enum(["generateDay", "termStartDay", "dueDay"]).optional(), generateLeadDays: z.number().int().optional(), dueLeadDays: z.number().int().optional(), installmentWeights: z.array(z.number()), maxInstallmentsPerTerm: z.number().int().optional(), installmentPlanName: z.string().optional(), anchorType: z.enum(["none", "dayOfMonth", "anchorTime", "dayOfWeek", "weekOfMonth"]).optional(), dayOfMonth: z.number().int().optional(), dayOfWeek: z.enum(["monday", "tuesday", "wednesday", "thursday", "friday", "saturday", "sunday"]).optional(), weekOfMonth: z.enum(["none", "first", "second", "third", "fourth", "fifth"]).optional(), anchorTime: z.string().optional(), autopayLeadDays: z.number().optional()});

export const preferences = z.object({installmentPreferences: installmentPreferences.optional()});

export const validationItemResponse = z.object({elementType: z.string(), locator: z.string(), errors: z.array(z.string())});

export const validationResult = z.object({validationItems: z.array(validationItemResponse).optional(), success: z.boolean()});

export const contactRoles = z.object({contactLocator: z.string(), roles: z.array(z.string())});

export const accountResponse = z.object({locator: z.string(), type: z.string(), accountState: z.enum(["draft", "validated", "discarded"]), data: z.record(z.string(), z.object({})), createdAt: z.string(), createdBy: z.string(), delinquencyPlanName: z.string().optional(), shortfallTolerancePlanName: z.string().optional(), autoRenewalPlanName: z.string().optional(), excessCreditPlanName: z.string().optional(), preferences: preferences.optional(), validationResult: validationResult.optional(), billingLevel: z.enum(["account", "inherit", "policy"]), invoicingPlanName: z.string().optional(), region: z.string().optional(), invoiceDocument: z.string().optional(), timezone: z.string().optional(), accountNumber: z.string(), contacts: z.array(contactRoles), anonymizedAt: z.string().optional(), paymentExecutionRetryPlanName: 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
};

/**
 * POST /policy/{tenantLocator}/accounts
 */
export const createApiPolicyTenantLocatorAccounts = async (args: CreateApiPolicyTenantLocatorAccountsArgs, options: CreateApiPolicyTenantLocatorAccountsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/policy/${encodeURIComponent(String(args.tenantLocator))}/accounts${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(accountResponse, await res.json())
};