import {z} from 'zod'

export type CancelMilestoneRequest = {effective_date: string};

export type UpdateApiContractsContractIdMilestonesMilestoneRefCancellationArgs = {contract_id: string, milestone_ref: string, body: CancelMilestoneRequest};

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

export const currencyCode = z.string();

export const roundedMonetaryAmount = z.object({amount: z.string(), currency: currencyCode});

export const contractMilestoneStatus = z.enum(["OPEN", "DUE_THIS_PERIOD", "OVERDUE", "COMPLETED", "CANCELLED"]);

export const externalReference = z.object({type: z.string(), id: z.string(), url: z.string().optional()});

export const contractMilestoneCancellation = z.object({effective_date: z.string(), credit_memo_id: z.string().nullable().optional()});

export const contractMilestone = z.object({id: z.string(), key: z.string(), name: z.string(), sequence: z.number().int(), percentage: z.string().nullable().optional(), allocated_amount: roundedMonetaryAmount.nullable().optional(), amount: roundedMonetaryAmount.nullable().optional(), expected_date: z.string().nullable().optional(), status: contractMilestoneStatus, completed_date: z.string().nullable().optional(), memo: z.string().nullable().optional(), external_references: z.array(externalReference), cancellation: contractMilestoneCancellation.nullable().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
};

/**
 * Permanently cancels a pending milestone
 * 
 * PUT /contracts/{contract_id}/milestones/{milestone_ref}/cancellation
 */
export const updateApiContractsContractIdMilestonesMilestoneRefCancellation = async (args: UpdateApiContractsContractIdMilestonesMilestoneRefCancellationArgs, options?: UpdateApiContractsContractIdMilestonesMilestoneRefCancellationOptions) => {
const {baseUrl = "https://api.rillet.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/contracts/${encodeURIComponent(String(args.contract_id))}/milestones/${encodeURIComponent(String(args.milestone_ref))}/cancellation${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PUT", 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(contractMilestone, await res.json())
};