/**
 * MCP tools for rNetwork (CRM contacts & relationships).
 *
 * Tools: rnetwork_list_contacts, rnetwork_get_contact, rnetwork_list_relationships
 * Reads LOCAL Automerge doc only (not external Twenty CRM).
 */

import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { z } from "zod";
import type { SyncServer } from "../local-first/sync-server";
import { networkDocId } from "../../modules/rnetwork/schemas";
import type { NetworkDoc } from "../../modules/rnetwork/schemas";
import { resolveAccess, accessDeniedResponse } from "./_auth";

export function registerNetworkTools(server: McpServer, syncServer: SyncServer) {
	server.tool(
		"rnetwork_list_contacts",
		"List CRM contacts in a space",
		{
			space: z.string().describe("Space slug"),
			token: z.string().optional().describe("JWT auth token (required for private/permissioned spaces)"),
			limit: z.number().optional().describe("Max results (default 50)"),
		},
		async ({ space, token, limit }) => {
			const access = await resolveAccess(token, space, false);
			if (!access.allowed) return accessDeniedResponse(access.reason!);

			const doc = syncServer.getDoc<NetworkDoc>(networkDocId(space));
			if (!doc) {
				return { content: [{ type: "text", text: JSON.stringify({ error: "No network data found for this space" }) }] };
			}

			const contacts = Object.values(doc.contacts || {})
				.slice(0, limit || 50)
				.map(c => ({
					did: c.did,
					name: c.name,
					role: c.role,
					tags: c.tags,
					addedAt: c.addedAt,
				}));

			return { content: [{ type: "text", text: JSON.stringify(contacts, null, 2) }] };
		},
	);

	server.tool(
		"rnetwork_get_contact",
		"Get a specific contact and their relationships",
		{
			space: z.string().describe("Space slug"),
			token: z.string().optional().describe("JWT auth token"),
			did: z.string().describe("Contact DID"),
		},
		async ({ space, token, did }) => {
			const access = await resolveAccess(token, space, false);
			if (!access.allowed) return accessDeniedResponse(access.reason!);

			const doc = syncServer.getDoc<NetworkDoc>(networkDocId(space));
			if (!doc) {
				return { content: [{ type: "text", text: JSON.stringify({ error: "No network data found" }) }] };
			}

			const contact = doc.contacts?.[did];
			if (!contact) {
				return { content: [{ type: "text", text: JSON.stringify({ error: "Contact not found" }) }] };
			}

			const relationships = Object.values(doc.relationships || {})
				.filter(r => r.fromDid === did || r.toDid === did);

			return { content: [{ type: "text", text: JSON.stringify({ contact, relationships }, null, 2) }] };
		},
	);

	server.tool(
		"rnetwork_list_relationships",
		"List all relationships in a space's network",
		{
			space: z.string().describe("Space slug"),
			token: z.string().optional().describe("JWT auth token"),
			limit: z.number().optional().describe("Max results (default 100)"),
		},
		async ({ space, token, limit }) => {
			const access = await resolveAccess(token, space, false);
			if (!access.allowed) return accessDeniedResponse(access.reason!);

			const doc = syncServer.getDoc<NetworkDoc>(networkDocId(space));
			if (!doc) {
				return { content: [{ type: "text", text: JSON.stringify({ error: "No network data found" }) }] };
			}

			const relationships = Object.values(doc.relationships || {})
				.slice(0, limit || 100);

			return { content: [{ type: "text", text: JSON.stringify(relationships, null, 2) }] };
		},
	);
}