import {z} from 'zod'

export type TokenSupplyPolicy = {mintable?: boolean | undefined, burnable?: boolean | undefined, maxSupply?: string | undefined};

export type TokenAdmin = {vaultAccountId: string, approvalPolicyId?: string | undefined};

export type TokenComplianceConfig = {permissionedTransfers?: boolean | undefined, investorEligibilityProvider?: string | undefined, jurisdictionFlags?: Array<string> | undefined, transferRestrictions?: {[key: string]: unknown} | undefined};

export type CreateTokenRequest = {standard: string, templateId?: string | undefined, name: string, symbol: string, decimals: number, initialSupply?: string | undefined, supplyPolicy?: TokenSupplyPolicy | undefined, admin: TokenAdmin, complianceConfig?: TokenComplianceConfig | undefined, network?: string | undefined};

export type CreateApiTokensArgs = {'Idempotency-Key': string, body: CreateTokenRequest};

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

export const tokenSupplyPolicy = z.object({mintable: z.boolean().optional(), burnable: z.boolean().optional(), maxSupply: z.string().optional()});

export const tokenAdmin = z.object({vaultAccountId: z.string(), approvalPolicyId: z.string().optional()});

export const tokenComplianceConfig = z.object({permissionedTransfers: z.boolean().optional(), investorEligibilityProvider: z.string().optional(), jurisdictionFlags: z.array(z.string()).optional(), transferRestrictions: z.record(z.string(), z.unknown()).optional()});

export const token = z.object({id: z.string().optional(), standard: z.string().optional(), templateId: z.string().optional(), name: z.string().optional(), symbol: z.string().optional(), decimals: z.number().int().optional(), network: z.string().optional(), contractAddress: z.string().nullable().optional(), status: z.enum(["DRAFT", "DEPLOYING", "DEPLOYED", "PAUSED", "RETIRED", "FAILED"]).optional(), supplyPolicy: tokenSupplyPolicy.optional(), admin: tokenAdmin.optional(), complianceConfig: tokenComplianceConfig.optional(), createdAt: z.string().optional(), updatedAt: 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
};

/**
 * Create a token configuration
 * 
 * POST /tokens
 */
export const createApiTokens = async (args: CreateApiTokensArgs, options?: CreateApiTokensOptions) => {
const {baseUrl = "https://api.qustody.io/v1", fetch: fetchFn = fetch, BearerAPIKey} = options ?? {}

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

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

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