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import { BrowseLabelsSchema } from "./schema-readonly";
import { ManageLabelSchema } from "./schema";
import { gitlab, toQuery } from "../../utils/gitlab-api";
import { resolveNamespaceForAPI } from "../../utils/namespace";
import { ToolRegistry, EnhancedToolDefinition } from "../../types";
import { isActionDenied } from "../../config";
/**
* Labels tools registry - 2 CQRS tools replacing 5 individual tools
*
* browse_labels (Query): list, get
* manage_label (Command): create, update, delete
*/
export const labelsToolRegistry: ToolRegistry = new Map<string, EnhancedToolDefinition>([
// ============================================================================
// browse_labels - CQRS Query Tool (discriminated union schema)
// TypeScript automatically narrows types in each switch case
// ============================================================================
[
"browse_labels",
{
name: "browse_labels",
description:
'BROWSE labels. Actions: "list" shows all labels in project/group with filtering, "get" retrieves single label details by ID or name.',
inputSchema: z.toJSONSchema(BrowseLabelsSchema),
gate: { envVar: "USE_LABELS", defaultValue: true },
handler: async (args: unknown) => {
const input = BrowseLabelsSchema.parse(args);
// Runtime validation: reject denied actions even if they bypass schema filtering
Iif (isActionDenied("browse_labels", input.action)) {
throw new Error(`Action '${input.action}' is not allowed for browse_labels tool`);
}
const { entityType, encodedPath } = await resolveNamespaceForAPI(input.namespace);
switch (input.action) {
case "list": {
// TypeScript knows: input has search, with_counts, include_ancestor_groups, per_page, page (optional)
const { action: _action, namespace: _namespace, ...rest } = input;
const query = toQuery(rest, []);
return gitlab.get(`${entityType}/${encodedPath}/labels`, { query });
}
case "get": {
// TypeScript knows: input has label_id (required), include_ancestor_groups (optional)
const query = input.include_ancestor_groups
? toQuery({ include_ancestor_groups: input.include_ancestor_groups }, [])
: undefined;
return gitlab.get(
`${entityType}/${encodedPath}/labels/${encodeURIComponent(input.label_id)}`,
{ query }
);
}
/* istanbul ignore next -- unreachable with Zod discriminatedUnion */
default:
throw new Error(`Unknown action: ${(input as { action: string }).action}`);
}
},
},
],
// ============================================================================
// manage_label - CQRS Command Tool (discriminated union schema)
// TypeScript automatically narrows types in each switch case
// ============================================================================
[
"manage_label",
{
name: "manage_label",
description:
'MANAGE labels. Actions: "create" adds new label (requires name and color), "update" modifies existing label, "delete" removes label permanently.',
inputSchema: z.toJSONSchema(ManageLabelSchema),
gate: { envVar: "USE_LABELS", defaultValue: true },
handler: async (args: unknown) => {
const input = ManageLabelSchema.parse(args);
// Runtime validation: reject denied actions even if they bypass schema filtering
Iif (isActionDenied("manage_label", input.action)) {
throw new Error(`Action '${input.action}' is not allowed for manage_label tool`);
}
const { entityType, encodedPath } = await resolveNamespaceForAPI(input.namespace);
switch (input.action) {
case "create": {
// TypeScript knows: input has name, color (required), description, priority (optional)
return gitlab.post(`${entityType}/${encodedPath}/labels`, {
body: {
name: input.name,
color: input.color,
description: input.description,
priority: input.priority,
},
contentType: "json",
});
}
case "update": {
// TypeScript knows: input has label_id (required), name, new_name, color, description, priority (optional)
const {
action: _action,
namespace: _namespace,
label_id,
name: _name,
...body
} = input;
return gitlab.put(
`${entityType}/${encodedPath}/labels/${encodeURIComponent(label_id)}`,
{ body, contentType: "json" }
);
}
case "delete": {
// TypeScript knows: input has label_id (required)
await gitlab.delete(
`${entityType}/${encodedPath}/labels/${encodeURIComponent(input.label_id)}`
);
return { deleted: true };
}
/* 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
*/
export function getLabelsReadOnlyToolNames(): string[] {
return ["browse_labels"];
}
/**
* Get all tool definitions from the registry
*/
export function getLabelsToolDefinitions(): EnhancedToolDefinition[] {
return Array.from(labelsToolRegistry.values());
}
/**
* Get filtered tools based on read-only mode
*/
export function getFilteredLabelsTools(readOnlyMode: boolean = false): EnhancedToolDefinition[] {
if (readOnlyMode) {
const readOnlyNames = getLabelsReadOnlyToolNames();
return Array.from(labelsToolRegistry.values()).filter(tool =>
readOnlyNames.includes(tool.name)
);
}
return getLabelsToolDefinitions();
}
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