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import { BrowseWebhooksSchema } from "./schema-readonly";
import { ManageWebhookSchema } from "./schema";
import { gitlab, toQuery } from "../../utils/gitlab-api";
import { ToolRegistry, EnhancedToolDefinition } from "../../types";
import { isActionDenied } from "../../config";
/**
* Webhooks tools registry - 2 CQRS tools (discriminated union schema)
*
* browse_webhooks (Query): list, get
* manage_webhook (Command): create, update, delete, test
*/
export const webhooksToolRegistry: ToolRegistry = new Map<string, EnhancedToolDefinition>([
// ============================================================================
// browse_webhooks - CQRS Query Tool (discriminated union schema)
// TypeScript automatically narrows types in each switch case
// ============================================================================
[
"browse_webhooks",
{
name: "browse_webhooks",
description:
"List and inspect webhook configurations for projects or groups. Actions: list (all webhooks with event types and status), get (webhook details by ID). Related: manage_webhook to create/update/delete/test.",
inputSchema: z.toJSONSchema(BrowseWebhooksSchema),
gate: { envVar: "USE_WEBHOOKS", defaultValue: true },
handler: async (args: unknown) => {
const input = BrowseWebhooksSchema.parse(args);
// Runtime validation: reject denied actions even if they bypass schema filtering
Iif (isActionDenied("browse_webhooks", input.action)) {
throw new Error(`Action '${input.action}' is not allowed for browse_webhooks tool`);
}
// Helper to determine base API path from scope
const getBasePath = (scope: "project" | "group", projectId?: string, groupId?: string) => {
if (scope === "project" && projectId) {
return `projects/${encodeURIComponent(projectId)}/hooks`;
} else if (scope === "group" && groupId) {
return `groups/${encodeURIComponent(groupId)}/hooks`;
}
throw new Error("Invalid scope or missing project/group ID");
};
switch (input.action) {
case "list": {
// TypeScript knows: input has scope, projectId/groupId, per_page, page
const basePath = getBasePath(input.scope, input.projectId, input.groupId);
const {
action: _action,
scope: _scope,
projectId: _pid,
groupId: _gid,
...queryParams
} = input;
return gitlab.get(basePath, {
query: toQuery(queryParams, []),
});
}
case "get": {
// TypeScript knows: input has scope, projectId/groupId, hookId
const basePath = getBasePath(input.scope, input.projectId, input.groupId);
return gitlab.get(`${basePath}/${input.hookId}`);
}
/* istanbul ignore next -- unreachable with Zod discriminatedUnion */
default:
throw new Error(`Unknown action: ${(input as { action: string }).action}`);
}
},
},
],
// ============================================================================
// manage_webhook - CQRS Command Tool (discriminated union schema)
// TypeScript automatically narrows types in each switch case
// ============================================================================
[
"manage_webhook",
{
name: "manage_webhook",
description:
"Create, update, delete, or test webhooks for event-driven automation. Actions: create (URL + event types + optional secret), update (modify settings), delete (remove), test (trigger delivery for specific event). Related: browse_webhooks for inspection.",
inputSchema: z.toJSONSchema(ManageWebhookSchema),
gate: { envVar: "USE_WEBHOOKS", defaultValue: true },
handler: async (args: unknown) => {
const input = ManageWebhookSchema.parse(args);
// Runtime validation: reject denied actions even if they bypass schema filtering
Iif (isActionDenied("manage_webhook", input.action)) {
throw new Error(`Action '${input.action}' is not allowed for manage_webhook tool`);
}
// Determine base path from scope and IDs
const getBasePath = (scope: "project" | "group", projectId?: string, groupId?: string) => {
if (scope === "project" && projectId) {
return `projects/${encodeURIComponent(projectId)}/hooks`;
} else Eif (scope === "group" && groupId) {
return `groups/${encodeURIComponent(groupId)}/hooks`;
}
throw new Error("Invalid scope or missing project/group ID");
};
// Helper to filter webhook data for API requests
const buildRequestBody = (data: Record<string, unknown>): Record<string, unknown> => {
const body: Record<string, unknown> = {};
for (const [key, value] of Object.entries(data)) {
if (
value !== undefined &&
!["action", "scope", "projectId", "groupId", "hookId", "trigger"].includes(key)
) {
body[key] = value;
}
}
return body;
};
switch (input.action) {
case "create": {
// TypeScript knows: input has url (required), scope, projectId/groupId, event fields
const basePath = getBasePath(input.scope, input.projectId, input.groupId);
return gitlab.post(basePath, {
body: buildRequestBody(input),
contentType: "json",
});
}
case "update": {
// TypeScript knows: input has hookId (required), scope, projectId/groupId, optional fields
const basePath = getBasePath(input.scope, input.projectId, input.groupId);
return gitlab.put(`${basePath}/${input.hookId}`, {
body: buildRequestBody(input),
contentType: "json",
});
}
case "delete": {
// TypeScript knows: input has hookId (required), scope, projectId/groupId
const basePath = getBasePath(input.scope, input.projectId, input.groupId);
await gitlab.delete(`${basePath}/${input.hookId}`);
return { success: true, message: "Webhook deleted successfully" };
}
case "test": {
// TypeScript knows: input has hookId (required), trigger (required), scope, projectId/groupId
const basePath = getBasePath(input.scope, input.projectId, input.groupId);
return gitlab.post(`${basePath}/${input.hookId}/test/${input.trigger}`, {
contentType: "json",
});
}
/* istanbul ignore next -- unreachable with Zod discriminatedUnion */
default:
throw new Error(`Unknown action: ${(input as { action: string }).action}`);
}
},
},
],
]);
/**
* Get read-only tool names from the registry.
* Only browse_webhooks is read-only. manage_webhook is purely write operations.
*/
export function getWebhooksReadOnlyToolNames(): string[] {
return ["browse_webhooks"];
}
/**
* Get all tool definitions from the registry
*/
export function getWebhooksToolDefinitions(): EnhancedToolDefinition[] {
return Array.from(webhooksToolRegistry.values());
}
/**
* Get filtered tools based on read-only mode
*/
export function getFilteredWebhooksTools(readOnlyMode: boolean = false): EnhancedToolDefinition[] {
if (readOnlyMode) {
const readOnlyNames = getWebhooksReadOnlyToolNames();
return Array.from(webhooksToolRegistry.values()).filter(tool =>
readOnlyNames.includes(tool.name)
);
}
return getWebhooksToolDefinitions();
}
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