import {z} from 'zod'

export type EscrowVerb = 'authorize' | 'charge' | 'capture' | 'void' | 'refund';

export type EscrowActionRequest = {action: EscrowVerb, amount?: (string | null) | undefined, feeBps?: number | undefined};

export type CreateApiEscrowEscrowIdActionsArgs = {escrowId: string, 'X-Hevn-Account'?: (string | null) | undefined, 'Idempotency-Key'?: (string | null) | undefined, body: EscrowActionRequest};

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

export const platformEscrowStatus = z.enum(["draft", "authorized", "charged", "partiallyCaptured", "captured", "voided", "reclaimed", "partiallyRefunded", "refunded"]);

export const escrowAction = z.enum(["approve", "authorize", "charge", "capture", "reject", "void", "reclaim", "refund"]);

export const escrowPartyView = z.object({clientId: z.string()});

export const escrowWindowsView = z.object({approveBy: z.string(), holdUntil: z.string(), refundableUntil: z.string()});

export const platformEscrowActionStatus = z.enum(["awaitingSignature", "signing", "submitted", "confirmed", "reverted", "failed", "superseded", "dropped"]);

export const escrowApprovalView = z.object({id: z.string(), payload: z.string(), expiresAt: z.string()});

export const escrowActionView = z.object({action: escrowAction, idempotencyKey: z.string(), status: platformEscrowActionStatus, amount: z.string().nullable().optional(), feeBps: z.number().int().nullable().optional(), transactionHash: z.string().nullable().optional(), approval: escrowApprovalView.nullable().optional()});

export const escrowView = z.object({id: z.string(), status: platformEscrowStatus, availableActions: z.array(escrowAction), sender: escrowPartyView, receiver: escrowPartyView, onchainEscrowUrl: z.string(), description: z.string().nullable().optional(), completionConditions: z.string().nullable().optional(), token: z.string(), maxAmount: z.string(), authorizedAmount: z.string(), capturableAmount: z.string(), refundableAmount: z.string(), windows: escrowWindowsView, action: escrowActionView.nullable().optional(), consistent: z.boolean().nullable().optional(), createdAt: z.string(), updatedAt: z.string()});

export const escrowEventView = z.object({name: z.string(), transactionHash: z.string(), blockNumber: z.number().int(), amount: z.string().nullable().optional()});

export const escrowActionResultView = z.object({deal: escrowView, action: escrowActionView, events: z.array(escrowEventView).optional(), pollUrl: 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
};

/**
 * Prepare an escrow action and return the payload to sign
 * 
 * POST /escrow/{escrowId}/actions
 */
export const createApiEscrowEscrowIdActions = async (args: CreateApiEscrowEscrowIdActionsArgs, options: CreateApiEscrowEscrowIdActionsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args['X-Hevn-Account'] != null) headers.set("X-Hevn-Account", String(args['X-Hevn-Account']))
if (args['Idempotency-Key'] != null) headers.set("Idempotency-Key", String(args['Idempotency-Key']))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/escrow/${encodeURIComponent(String(args.escrowId))}/actions${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(escrowActionResultView, await res.json())
};