import {z} from 'zod'

export type AWSIAMRole = {aws_iam_role_arn: string};

export type S3DatalakeOptionsAWSIAMRole = {bucket_name: string, prefix: string, bucket_region: string, auth_method: 'aws_iam_role', aws_iam_role: AWSIAMRole};

export type AWSAccessKeys = {access_id: string, secret_key: string};

export type S3DatalakeOptionsAWSAccessKeys = {bucket_name: string, prefix: string, bucket_region: string, auth_method: 'aws_access_keys', aws_access_keys: AWSAccessKeys};

export type S3DatalakeOptions = S3DatalakeOptionsAWSIAMRole | S3DatalakeOptionsAWSAccessKeys;

export type S3CompatibleDatalakeOptions = {prefix: string, bucket_name: string, bucket_region: string, bucket_host: string, bucket_port: number, aws_access_keys: AWSAccessKeys};

export type GCPDatalakeServiceAccountRole = {gcp_service_account_email: string};

export type GCSDatalakeOptionsGCPServiceAccountRole = {prefix: string, bucket_name: string, bucket_region: string, auth_method: 'gcp_service_account_role', gcp_service_account_role: GCPDatalakeServiceAccountRole};

export type GCPDatalakeServiceAccountKey = {service_account_email: string, service_account_key: unknown};

export type GCSDatalakeOptionsGCPServiceAccountKey = {prefix: string, bucket_name: string, bucket_region: string, auth_method: 'gcp_service_account_key', gcp_service_account_key: GCPDatalakeServiceAccountKey};

export type CredentialSource = {environment_id: string, region_url: string, url: string, regional_cred_verification_url: string};

export type GcpExternalAccountMetadata = {type: string, audience: string, subject_token_type: string, service_account_impersonation_url: string, token_url: string, credential_source: CredentialSource};

export type FederatedGCPDatalakeServiceAccountRole = {service_account_email: string, workload_identity_federation_metadata?: GcpExternalAccountMetadata | undefined};

export type GCSDatalakeOptionsFederatedGCPServiceAccountRole = {prefix: string, bucket_name: string, bucket_region: string, auth_method: 'federated_gcp_service_account_role', federated_gcp_service_account_role: FederatedGCPDatalakeServiceAccountRole};

export type GCSDatalakeOptions = GCSDatalakeOptionsGCPServiceAccountRole | GCSDatalakeOptionsGCPServiceAccountKey | GCSDatalakeOptionsFederatedGCPServiceAccountRole;

export type AzureStorageAccountAccessKey = {storage_account_access_key: string};

export type ABSDatalakeOptions = {prefix: string, container_name: string, storage_account_name: string, auth_method: 'azure_storage_account_access_key', azure_storage_account_access_key?: AzureStorageAccountAccessKey | undefined};

export type DatalakeOptions = {storage: 's3', s3: S3DatalakeOptions, name: string, retention_window_days?: number | undefined} | {storage: 's3_compatible', s3_compatible: S3CompatibleDatalakeOptions, name: string, retention_window_days?: number | undefined} | {storage: 'gcs', gcs: GCSDatalakeOptions, name: string, retention_window_days?: number | undefined} | {storage: 'abs', abs: ABSDatalakeOptions, name: string, retention_window_days?: number | undefined};

export type CreateDatalakeRequest = {datalake: DatalakeOptions};

export type CreateApiImportDatalakesArgs = {body: CreateDatalakeRequest};

export type CreateApiImportDatalakesOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const aWSIAMRoleResource = z.object({aws_iam_role: z.string()});

export const s3DatalakeResourceAWSIAMRole = z.object({prefix: z.string(), bucket_name: z.string(), bucket_region: z.string(), auth_method: z.literal("aws_iam_role"), aws_iam_role: aWSIAMRoleResource});

export const aWSAccessKeysResource = z.object({access_key_id: z.string()});

export const s3DatalakeResourceAWSAccessKeys = z.object({prefix: z.string(), bucket_name: z.string(), bucket_region: z.string(), auth_method: z.literal("aws_access_keys"), aws_access_keys: aWSAccessKeysResource});

export const s3DatalakeResource = z.discriminatedUnion("auth_method", [s3DatalakeResourceAWSIAMRole, s3DatalakeResourceAWSAccessKeys]);

export const s3CompatibleDatalakeResource = z.object({prefix: z.string(), bucket_name: z.string(), bucket_region: z.string(), bucket_host: z.string(), bucket_port: z.number().int(), aws_access_keys: aWSAccessKeysResource});

export const gCPDatalakeServiceAccountRoleResource = z.object({gcp_service_account_email: z.string()});

export const gCSDatalakeResourceGCPServiceAccountRole = z.object({prefix: z.string(), bucket_name: z.string(), bucket_region: z.string(), auth_method: z.literal("gcp_service_account_role"), gcp_service_account_role: gCPDatalakeServiceAccountRoleResource});

export const gCPDatalakeServiceAccountKeyResource = z.object({service_account_email: z.string()});

export const gCSDatalakeResourceGCPServiceAccountKey = z.object({prefix: z.string(), bucket_name: z.string(), bucket_region: z.string(), auth_method: z.literal("gcp_service_account_key"), gcp_service_account_key: gCPDatalakeServiceAccountKeyResource});

export const federatedGCPDatalakeServiceAccountRoleResource = z.object({gcp_service_account_email: z.string()});

export const gCSDatalakeResourceFederatedGCPServiceAccountRole = z.object({prefix: z.string(), bucket_name: z.string(), bucket_region: z.string(), auth_method: z.literal("federated_gcp_service_account_role"), federated_gcp_service_account_role: federatedGCPDatalakeServiceAccountRoleResource});

export const gCSDatalakeResource = z.discriminatedUnion("auth_method", [gCSDatalakeResourceGCPServiceAccountRole, gCSDatalakeResourceGCPServiceAccountKey, gCSDatalakeResourceFederatedGCPServiceAccountRole]);

export const azureStorageAccountAccessKeyResource = z.object({});

export const aBSDatalakeResource = z.object({prefix: z.string(), container_name: z.string(), storage_account_name: z.string(), auth_method: z.string(), azure_storage_account_access_key: azureStorageAccountAccessKeyResource.optional()});

export const datalakeResource = z.union([z.object({storage: z.literal("s3"), s3: s3DatalakeResource, id: z.string(), name: z.string(), retention_window_days: z.number().int().optional(), created_at: z.string(), updated_at: z.string()}), z.object({storage: z.literal("s3_compatible"), s3_compatible: s3CompatibleDatalakeResource, id: z.string(), name: z.string(), retention_window_days: z.number().int().optional(), created_at: z.string(), updated_at: z.string()}), z.object({storage: z.literal("gcs"), gcs: gCSDatalakeResource, id: z.string(), name: z.string(), retention_window_days: z.number().int().optional(), created_at: z.string(), updated_at: z.string()}), z.object({storage: z.literal("abs"), abs: aBSDatalakeResource, id: z.string(), name: z.string(), retention_window_days: z.number().int().optional(), created_at: z.string(), updated_at: z.string()})]);

export const getDatalakeResponse = z.object({datalake: datalakeResource});

export const createApiImportDatalakesResponse = z.object({status: z.literal("success"), data: getDatalakeResponse, message: z.string()});

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 datalake
 * 
 * POST /import/datalakes
 */
export const createApiImportDatalakes = async (args: CreateApiImportDatalakesArgs, options?: CreateApiImportDatalakesOptions) => {
const {baseUrl = "https://api.prequel.co", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (ApiKeyAuth !== undefined) headers.set("X-API-KEY", ApiKeyAuth)

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