import {z} from 'zod'

export type OIDCCloudAuthDiscoveryType = 'oidc_discovery' | 'direct_jwks';

export type OIDCCloudAuthOrgUUIDSource = 'dd_org_uuid' | 'aud';

export type OIDCCloudAuthClaimMatchMode = 'exact' | 'glob';

export type OIDCCloudAuthClaimMatcherCreate = {claim: string, mode?: OIDCCloudAuthClaimMatchMode | undefined, values: Array<string>};

export type OIDCCloudAuthProviderCreateAttributes = {audiences: Array<string>, discovery_type: OIDCCloudAuthDiscoveryType, identity_claim_name?: string | undefined, issuer_url: string, jwks_url?: string | undefined, org_uuid_claim_name?: string | undefined, org_uuid_source?: OIDCCloudAuthOrgUUIDSource | undefined, provider_name: string, required_claims?: Array<OIDCCloudAuthClaimMatcherCreate> | undefined};

export type OIDCCloudAuthProviderType = 'custom_oidc_provider_config';

export type OIDCCloudAuthProviderCreateData = {attributes: OIDCCloudAuthProviderCreateAttributes, type: OIDCCloudAuthProviderType};

export type OIDCCloudAuthProviderCreateRequest = {data: OIDCCloudAuthProviderCreateData};

export type CreateApiApiV2WifOidcProviderArgs = {body: OIDCCloudAuthProviderCreateRequest};

export type CreateApiApiV2WifOidcProviderOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, appKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const oIDCCloudAuthDiscoveryType = z.enum(["oidc_discovery", "direct_jwks"]);

export const oIDCCloudAuthOrgUUIDSource = z.enum(["dd_org_uuid", "aud"]);

export const oIDCCloudAuthClaimMatchMode = z.enum(["exact", "glob"]);

export const oIDCCloudAuthClaimMatcher = z.object({claim: z.string(), mode: oIDCCloudAuthClaimMatchMode.optional(), values: z.array(z.string())});

export const oIDCCloudAuthProviderAttributesResponse = z.object({audiences: z.array(z.string()).optional(), created_at: z.string().optional(), created_by: z.string().optional(), discovery_type: oIDCCloudAuthDiscoveryType.optional(), identity_claim_name: z.string().optional(), issuer_url: z.string().optional(), jwks_url: z.string().optional(), org_uuid_claim_name: z.string().optional(), org_uuid_source: oIDCCloudAuthOrgUUIDSource.optional(), provider_name: z.string().optional(), required_claims: z.array(oIDCCloudAuthClaimMatcher).optional()});

export const oIDCCloudAuthProviderType = z.literal("custom_oidc_provider_config");

export const oIDCCloudAuthProviderDataResponse = z.object({attributes: oIDCCloudAuthProviderAttributesResponse, id: z.string(), type: oIDCCloudAuthProviderType});

export const oIDCCloudAuthProviderResponse = z.object({data: oIDCCloudAuthProviderDataResponse});

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 Custom OIDC provider
 * 
 * POST /api/v2/wif/oidc/provider
 * 
 * Also accepts auth: AuthZ
 */
export const createApiApiV2WifOidcProvider = async (args: CreateApiApiV2WifOidcProviderArgs, options?: CreateApiApiV2WifOidcProviderOptions) => {
const {baseUrl = "https://api.datadoghq.com", fetch: fetchFn = fetch, apiKeyAuth, appKeyAuth} = 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("DD-API-KEY", apiKeyAuth)
if (appKeyAuth !== undefined) headers.set("DD-APPLICATION-KEY", appKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/wif/oidc/provider${query.size > 0 ? `?${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(oIDCCloudAuthProviderResponse, await res.json())
};