import {z} from 'zod'

export type SettleOverdraftDto = {lotId: string, quantity?: (number | unknown | null) | undefined, reason?: (string | null) | undefined};

export type CreateApiInventoryIdOverdraftSettleArgs = {id: string, body: SettleOverdraftDto};

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

export const overdraftSettlementDto = z.object({overdraftLotId: z.string().optional(), sourceLotId: z.string().nullable().optional(), quantity: z.union([z.number(), z.string()]).optional(), overdraftBalance: z.union([z.number(), z.string()]).optional(), dispenseCount: z.union([z.number().int(), z.string()]).optional(), firstDispensedAt: z.string().nullable().optional(), lastDispensedAt: z.string().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
};

/**
 * POST /inventory/{id}/overdraft/settle — pay off the item's open overdraft (ITE-1410) from
 * stock already on one of its real lots, e.g. a lot received before settlement existed or
 * into the wrong item. Same ledger as a receive: oldest overdraft dispenses first, revalued
 * at the lot's cost. 200 with null when there is nothing to settle.
 * 
 * POST /Inventory/{id}/overdraft/settle
 */
export const createApiInventoryIdOverdraftSettle = async (args: CreateApiInventoryIdOverdraftSettleArgs, options?: CreateApiInventoryIdOverdraftSettleOptions) => {
const {baseUrl = "https://api.clinicos.vet/backend/business", fetch: fetchFn = fetch, Bearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/Inventory/${encodeURIComponent(String(args.id))}/overdraft/settle${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(overdraftSettlementDto, await res.json())
};