import {z} from 'zod'

export type GetApiApiV1IntegrationsArgs = {capability?: string | undefined, 'If-None-Match'?: string | undefined};

export type GetApiApiV1IntegrationsOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const publicIntegrationEgressPolicy = z.object({status: z.literal("allowed"), catalog_version: z.string().min(1), policy_effective_date: z.string(), reviewed_at: z.string()});

export const publicIntegrationTransport = z.union([z.object({status: z.literal("available"), projection: z.string().min(1).nullable(), generation: z.string().nullable(), endpoints: z.array(z.string())}), z.object({status: z.literal("unavailable"), projection: z.string().nullable(), generation: z.string().nullable(), endpoints: z.array(z.string())}), z.object({status: z.literal("separate_authority"), projection: z.string().min(1).nullable(), generation: z.string().nullable(), endpoints: z.array(z.string())})]);

export const publicIntegrationCoverage = z.object({multi_lot: z.string().nullable().optional(), multiple_cpv: z.string().nullable().optional(), geography: z.string().nullable().optional()});

export const publicIntegration = z.object({slug: z.string(), source_slug: z.string(), name: z.string(), kind: z.string(), capabilities: z.array(z.string()), public_read: z.boolean(), egress_policy: publicIntegrationEgressPolicy, transport: publicIntegrationTransport, official_url: z.string(), license: z.string(), license_url: z.string().nullable().optional(), attribution_required: z.boolean(), attribution_text: z.string().nullable().optional(), reuse_conditions: z.string(), policy_effective_date: z.string(), reviewed_at: z.string(), catalog_version: z.string(), coverage: publicIntegrationCoverage.optional()});

export const publicIntegrationContract = z.object({surface: z.literal("public-read-only"), secrets_exposed: z.literal(false), writes_exposed: z.literal(false), health_semantics: z.string().nullable().optional(), excluded: z.array(z.string()).optional()});

export const publicSourcePolicyMetadata = z.object({slug: z.string(), name: z.string(), license: z.string(), license_url: z.string().nullable().optional(), attribution_required: z.boolean(), attribution_text: z.string().nullable().optional(), official_url: z.string().nullable().optional(), reuse_conditions: z.string(), policy_effective_date: z.string(), reviewed_at: z.string(), data_updated_at: z.string().nullable().optional(), catalog_version: z.string()});

export const sourceCatalogEnvelope = z.object({catalog_version: z.string(), policy_fingerprint: z.string(), policy_effective_date: z.string().optional(), sources: z.record(z.string(), publicSourcePolicyMetadata)});

export const integrationListResponse = z.object({schema_version: z.string(), source_catalog_version: z.string(), count: z.number().int(), items: z.array(publicIntegration), contract: publicIntegrationContract, _source_catalog: sourceCatalogEnvelope, _data_sources_used: z.array(publicSourcePolicyMetadata), _attributions: z.record(z.string(), 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
};

/**
 * List public integration capabilities
 * 
 * GET /api/v1/integrations
 * 
 * Also accepts auth: bearerAuth
 */
export const getApiApiV1Integrations = async (args: GetApiApiV1IntegrationsArgs, options?: GetApiApiV1IntegrationsOptions) => {
const {baseUrl = "https://openmercantil.es", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.capability != null) query.append("capability", String(args.capability))
if (args['If-None-Match'] != null) headers.set("If-None-Match", String(args['If-None-Match']))
if (apiKey !== undefined) headers.set("X-API-Key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/integrations${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(integrationListResponse, await res.json())
};