import {z} from 'zod'

export type TransactionTypeFilters = 'virtual_machine' | 'baremetal' | 'storage_block' | 'storage';

export type GetApiBillingTransactionsArgs = {limit?: number | undefined, offset?: number | undefined, types?: (Array<TransactionTypeFilters> | null) | undefined, earliest?: (string | null) | undefined, latest?: (string | null) | undefined};

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

export const vMTransactionLinkedInstanceType = z.enum(["virtual_machine_instance", "storage_block_instance"]);

export const vMTransactionLinkedInstance = z.object({type: vMTransactionLinkedInstanceType, id: z.string(), virtual_machine_id: z.string(), timestamp_creation: z.string(), timestamp_deletion: z.string().nullable()});

export const historicalChargeOrPayoutDetails = z.object({type: z.enum(["charge", "payout"]), linked_instance: vMTransactionLinkedInstance});

export const historicalOtherDetails = z.object({type: z.literal("other").optional(), note_public: z.string().nullable()});

export const historicalStripeDepositDetails = z.object({type: z.literal("stripe_deposit").optional()});

export const baremetalTransactionLinkedInstance = z.object({id: z.string(), baremetal_rental_id: z.string(), timestamp_creation: z.string(), timestamp_deletion: z.string().nullable()});

export const historicalBaremetalDetails = z.object({type: z.enum(["baremetal_charge", "baremetal_payout"]), linked_instance: baremetalTransactionLinkedInstance});

export const storageTransactionLinkedInstance = z.object({id: z.string(), timestamp_creation: z.string(), timestamp_deletion: z.string().nullable()});

export const historicalStorageDetails = z.object({type: z.enum(["storage_charge", "storage_payout"]), linked_instance: storageTransactionLinkedInstance});

export const historicalTransactionInTimePeriod = z.object({id: z.string(), total_amount: z.string(), timestamp_creation: z.string(), timestamp_completion: z.string().nullable(), details: z.discriminatedUnion("type", [historicalChargeOrPayoutDetails, historicalOtherDetails, historicalStripeDepositDetails, historicalBaremetalDetails, historicalStorageDetails]), period_amount: z.string()});

export const paginatedResultHistoricalTransactionInTimePeriod = z.object({results: z.array(historicalTransactionInTimePeriod), total_result_count: z.number().int().gte(0), has_previous: z.boolean(), has_next: z.boolean()});

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
};

/**
 * Historical organization billing log
 * 
 * GET /billing/transactions
 * 
 * Also accepts auth: APIKeyHeader
 */
export const getApiBillingTransactions = async (args: GetApiBillingTransactionsArgs, options: GetApiBillingTransactionsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, apiTokenAuth} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
for (const item of args.types ?? []) query.append("types", String(item))
if (args.earliest != null) query.append("earliest", String(args.earliest))
if (args.latest != null) query.append("latest", String(args.latest))
if (apiTokenAuth !== undefined) headers.set('authorization', `Bearer ${apiTokenAuth}`)

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