import {z} from 'zod'

export type PasswordAuth = {username: string, password: string};

export type SSHTunnelParams = {ssh_tunnel_host: string, ssh_tunnel_port: number, ssh_tunnel_username: string, ssh_public_key?: ('primary_public_key' | 'secondary_public_key') | undefined};

export type PostgresSourceOptions = {host: string, port: number, database: string, auth_method: 'password_auth', password_auth: PasswordAuth, use_ssh_tunnel?: boolean | undefined, ssh_tunnel?: SSHTunnelParams | undefined, disable_ssl?: boolean | undefined};

export type RedshiftAccessKeys = {password: string, access_id: string, secret_key: string};

export type RedshiftSourceOptionsAWSAccessKeys = {host: string, port: number, database: string, cluster: string, region: string, username: string, use_ssh_tunnel?: boolean | undefined, ssh_tunnel?: SSHTunnelParams | undefined, disable_ssl?: boolean | undefined, connection_timeout_in_seconds?: number | undefined, auth_method: 'aws_access_keys', aws_access_keys: RedshiftAccessKeys};

export type AWSIAMRole = {aws_iam_role_arn: string};

export type RedshiftSourceOptionsAWSIAMRole = {host: string, port: number, database: string, cluster: string, region: string, username: string, use_ssh_tunnel?: boolean | undefined, ssh_tunnel?: SSHTunnelParams | undefined, disable_ssl?: boolean | undefined, connection_timeout_in_seconds?: number | undefined, auth_method: 'aws_iam_role', aws_iam_role: AWSIAMRole};

export type RedshiftSourceOptions = RedshiftSourceOptionsAWSAccessKeys | RedshiftSourceOptionsAWSIAMRole;

export type RedshiftServerlessSourceOptionsAWSAccessKeys = {host: string, port: number, database: string, workgroup: string, region: string, use_ssh_tunnel?: boolean | undefined, ssh_tunnel?: SSHTunnelParams | undefined, disable_ssl?: boolean | undefined, connection_timeout_in_seconds?: number | undefined, auth_method: 'aws_access_keys', aws_access_keys: RedshiftAccessKeys};

export type RedshiftServerlessSourceOptionsAWSIAMRole = {host: string, port: number, database: string, workgroup: string, region: string, use_ssh_tunnel?: boolean | undefined, ssh_tunnel?: SSHTunnelParams | undefined, disable_ssl?: boolean | undefined, connection_timeout_in_seconds?: number | undefined, auth_method: 'aws_iam_role', aws_iam_role: AWSIAMRole};

export type RedshiftServerlessSourceOptions = RedshiftServerlessSourceOptionsAWSAccessKeys | RedshiftServerlessSourceOptionsAWSIAMRole;

export type GCPServiceAccountRole = {service_account_email: string};

export type BigQuerySourceOptionsGCPServiceAccountRole = {project_id: string, region: string, auth_method: 'gcp_service_account_role', gcp_service_account_role: GCPServiceAccountRole};

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 FederatedGCPServiceAccountRole = {service_account_email: string, workload_identity_federation_metadata?: GcpExternalAccountMetadata | undefined};

export type BigQuerySourceOptionsFederatedGCPServiceAccountRole = {project_id: string, region: string, auth_method: 'federated_gcp_service_account_role', federated_gcp_service_account_role: FederatedGCPServiceAccountRole};

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

export type BigQuerySourceOptionsGCPServiceAccountKey = {project_id: string, region: string, auth_method: 'gcp_service_account_key', gcp_service_account_key: GCPSourceServiceAccountKey};

export type BigQuerySourceOptions = BigQuerySourceOptionsGCPServiceAccountRole | BigQuerySourceOptionsFederatedGCPServiceAccountRole | BigQuerySourceOptionsGCPServiceAccountKey;

export type S3SourceOptionsAWSIAMRole = {bucket_name: string, region: string, bucket_host?: string | undefined, use_ssh_tunnel?: boolean | undefined, ssh_tunnel?: SSHTunnelParams | undefined, auth_method: 'aws_iam_role', aws_iam_role: AWSIAMRole};

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

export type S3SourceOptionsAWSAccessKeys = {bucket_name: string, region: string, bucket_host?: string | undefined, use_ssh_tunnel?: boolean | undefined, ssh_tunnel?: SSHTunnelParams | undefined, auth_method: 'aws_access_keys', aws_access_keys: AWSAccessKeys};

export type S3SourceOptions = S3SourceOptionsAWSIAMRole | S3SourceOptionsAWSAccessKeys;

export type AzureServiceSharedAccessSignature = {shared_access_signature_token: string};

export type ABSSourceOptions = {bucket_name: string, storage_account_name: string, auth_method: 'azure_service_shared_access_signature', azure_service_shared_access_signature: AzureServiceSharedAccessSignature};

export type PublicKeyAuth = {public_key: string};

export type SFTPSourceOptions = {username: string, host: string, port: number, auth_method: 'public_key_auth', public_key_auth: PublicKeyAuth};

export type GCSSourceOptionsGCPServiceAccountRole = {bucket_name: string, region: string, auth_method: 'gcp_service_account_role', gcp_service_account_role: GCPServiceAccountRole};

export type GCSSourceOptionsFederatedGCPServiceAccountRole = {bucket_name: string, region: string, auth_method: 'federated_gcp_service_account_role', federated_gcp_service_account_role: FederatedGCPServiceAccountRole};

export type GCSAccessKeys = {access_key: string, secret: string};

export type GCSSourceOptionsGCSHMACKeys = {bucket_name: string, region: string, auth_method: 'gcs_hmac_keys', gcs_hmac_keys: GCSAccessKeys};

export type GCSSourceOptionsGCPServiceAccountKey = {bucket_name: string, region: string, auth_method: 'gcp_service_account_key', gcp_service_account_key: GCPSourceServiceAccountKey};

export type GCSSourceOptions = GCSSourceOptionsGCPServiceAccountRole | GCSSourceOptionsFederatedGCPServiceAccountRole | GCSSourceOptionsGCSHMACKeys | GCSSourceOptionsGCPServiceAccountKey;

export type S3CompatibleSourceOptions = {host: string, port: number, bucket_name: string, auth_method: 'access_keys', aws_access_keys: AWSAccessKeys, disable_ssl?: boolean | undefined, use_ssh_tunnel?: boolean | undefined, ssh_tunnel?: SSHTunnelParams | undefined};

export type SnowflakeSourceOptions = {host: string, port: number, database: string, username: string, auth_method: 'public_key_auth', public_key_auth: PublicKeyAuth};

export type BearerTokenAuth = {bearer_token: string};

export type DeltaSharingSourceOptionsBearerToken = {host: string, port: number, auth_method: 'bearer_token', bearer_token: BearerTokenAuth};

export type OAuthAuth = {client_id: string, client_secret: string};

export type DeltaSharingSourceOptionsOAuth2 = {host: string, port: number, auth_method: 'oauth2', oauth2: OAuthAuth};

export type DeltaSharingSourceOptions = DeltaSharingSourceOptionsBearerToken | DeltaSharingSourceOptionsOAuth2;

export type SourceOptions = {vendor: 'postgres', postgres: PostgresSourceOptions, provider_id: string, name: string} | {vendor: 'redshift', redshift: RedshiftSourceOptions, provider_id: string, name: string} | {vendor: 'redshift_serverless', redshift_serverless: RedshiftServerlessSourceOptions, provider_id: string, name: string} | {vendor: 'bigquery', bigquery: BigQuerySourceOptions, provider_id: string, name: string} | {vendor: 's3', s3: S3SourceOptions, provider_id: string, name: string} | {vendor: 'abs', abs: ABSSourceOptions, provider_id: string, name: string} | {vendor: 'sftp', sftp: SFTPSourceOptions, provider_id: string, name: string} | {vendor: 'gcs', gcs: GCSSourceOptions, provider_id: string, name: string} | {vendor: 's3_compatible', s3_compatible: S3CompatibleSourceOptions, provider_id: string, name: string} | {vendor: 'snowflake', snowflake: SnowflakeSourceOptions, provider_id: string, name: string} | {vendor: 'delta_sharing', delta_sharing: DeltaSharingSourceOptions, provider_id: string, name: string};

export type CreateSourceRequest = {source: SourceOptions};

export type CreateApiSourcesArgs = {body: CreateSourceRequest};

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

export const sSHTunnelResource = z.object({ssh_tunnel_host: z.string().optional(), ssh_tunnel_port: z.number().int().optional(), ssh_tunnel_username: z.string().optional(), ssh_public_key: z.string().optional()});

export const postgresSourceResource = z.object({is_valid: z.boolean(), host: z.string(), port: z.number().int(), database: z.string(), username: z.string(), auth_method: z.string(), use_ssh_tunnel: z.boolean(), ssh_tunnel: sSHTunnelResource.optional(), disable_ssl: z.boolean(), connection_timeout_in_seconds: z.number().int()});

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

export const redshiftAccessKeysResource = z.object({access_id: z.string()});

export const redshiftSourceResource = z.object({is_valid: z.boolean(), host: z.string(), port: z.number().int(), database: z.string(), cluster: z.string().optional(), region: z.string().optional(), workgroup: z.string().optional(), username: z.string().optional(), auth_method: z.string(), aws_iam_role: aWSIAMRoleResource.optional(), aws_access_keys: redshiftAccessKeysResource.optional(), use_ssh_tunnel: z.boolean(), ssh_tunnel: sSHTunnelResource.optional(), disable_ssl: z.boolean(), connection_timeout_in_seconds: z.number().int()});

export const redshiftServerlessSourceResource = z.object({is_valid: z.boolean(), host: z.string(), port: z.number().int(), database: z.string(), region: z.string().optional(), workgroup: z.string(), auth_method: z.string(), aws_iam_role: aWSIAMRoleResource.optional(), aws_access_keys: redshiftAccessKeysResource.optional(), use_ssh_tunnel: z.boolean(), ssh_tunnel: sSHTunnelResource.optional(), disable_ssl: z.boolean(), connection_timeout_in_seconds: z.number().int()});

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

export const bigQuerySourceResourceGCPServiceAccountRole = z.object({project_id: z.string(), region: z.string(), auth_method: z.literal("gcp_service_account_role"), gcp_service_account_role: gCPServiceAccountRoleResource});

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

export const bigQuerySourceResourceFederatedGCPServiceAccountRole = z.object({project_id: z.string(), region: z.string(), auth_method: z.literal("federated_gcp_service_account_role"), federated_gcp_service_account_role: federatedGCPServiceAccountRoleResource});

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

export const bigQuerySourceResourceGCPServiceAccountKey = z.object({project_id: z.string(), region: z.string(), auth_method: z.literal("gcp_service_account_key"), gcp_service_account_key: gCPServiceAccountKeyResource});

export const bigQuerySourceResource = z.discriminatedUnion("auth_method", [bigQuerySourceResourceGCPServiceAccountRole, bigQuerySourceResourceFederatedGCPServiceAccountRole, bigQuerySourceResourceGCPServiceAccountKey]);

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

export const s3SourceResource = z.object({is_valid: z.boolean(), bucket_name: z.string(), region: z.string(), auth_method: z.string(), aws_iam_role: aWSIAMRoleResource.optional(), aws_access_keys: aWSAccessKeysResource.optional(), bucket_host: z.string().optional(), use_ssh_tunnel: z.boolean(), ssh_tunnel: sSHTunnelResource.optional()});

export const aBSSourceResource = z.object({is_valid: z.boolean(), bucket_name: z.string(), storage_account_name: z.string(), auth_method: z.string()});

export const sFTPSourceResource = z.object({is_valid: z.boolean(), username: z.string(), host: z.string(), port: z.number().int(), auth_method: z.string()});

export const gCSAccessKeysResource = z.object({access_id: z.string()});

export const gCSSourceResource = z.object({is_valid: z.boolean(), bucket_name: z.string(), region: z.string(), auth_method: z.string(), gcp_service_account_role: gCPServiceAccountRoleResource.optional(), federated_gcp_service_account_role: federatedGCPServiceAccountRoleResource.optional(), gcs_hmac_keys: gCSAccessKeysResource.optional(), gcp_service_account_key: gCPServiceAccountKeyResource.optional()});

export const s3CompatibleSourceResource = z.object({is_valid: z.boolean(), host: z.string(), port: z.number().int(), bucket_name: z.string(), auth_method: z.string(), aws_access_keys: aWSAccessKeysResource.optional(), disable_ssl: z.boolean(), use_ssh_tunnel: z.boolean(), ssh_tunnel: sSHTunnelResource.optional()});

export const publicKeyAuthResource = z.object({public_key: z.string()});

export const snowflakeSourceResource = z.object({is_valid: z.boolean(), host: z.string(), port: z.number().int(), database: z.string(), username: z.string(), auth_method: z.literal("public_key_auth"), public_key_auth: publicKeyAuthResource.optional()});

export const deltaSharingSourceResource = z.object({is_valid: z.boolean(), host: z.string(), port: z.number().int(), auth_method: z.string(), oauth_client_id: z.string().optional()});

export const sourceResource = z.union([z.object({vendor: z.literal("postgres"), postgres: postgresSourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()}), z.object({vendor: z.literal("redshift"), redshift: redshiftSourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()}), z.object({vendor: z.literal("redshift_serverless"), redshift_serverless: redshiftServerlessSourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()}), z.object({vendor: z.literal("bigquery"), bigquery: bigQuerySourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()}), z.object({vendor: z.literal("s3"), s3: s3SourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()}), z.object({vendor: z.literal("abs"), abs: aBSSourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()}), z.object({vendor: z.literal("sftp"), sftp: sFTPSourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()}), z.object({vendor: z.literal("gcs"), gcs: gCSSourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()}), z.object({vendor: z.literal("s3_compatible"), s3_compatible: s3CompatibleSourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()}), z.object({vendor: z.literal("snowflake"), snowflake: snowflakeSourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()}), z.object({vendor: z.literal("delta_sharing"), delta_sharing: deltaSharingSourceResource, id: z.string(), provider_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string()})]);

export const sourceResponse = z.object({ssh_public_key: z.string().optional(), source: sourceResource});

export const createApiSourcesResponse = z.object({status: z.literal("success"), data: sourceResponse, 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 source
 * 
 * POST /sources
 */
export const createApiSources = async (args: CreateApiSourcesArgs, options?: CreateApiSourcesOptions) => {
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 = `${baseUrl.replace(/\/+$/, '')}/sources${query.size > 0 ? `?${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(createApiSourcesResponse, await res.json())
};