import type { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { z } from "zod";
import type { BetterNewsClient } from "../client.js";
import { handleTool } from "../utils.js";

export function registerCommentTools(server: McpServer, client: BetterNewsClient) {
    server.tool(
        "list_comments",
        "List comments on a news item. Moderators also see hidden comments. Requires news:read scope.",
        {
            newsItemId: z.string().uuid().describe("News item UUID"),
            page: z.number().int().positive().optional().describe("Page number (default 1)"),
            limit: z.number().int().min(1).max(100).optional().describe("Items per page (default 20)"),
        },
        handleTool(async ({ newsItemId, page, limit }) => {
            const data = await client.get<unknown>(`/api/news/${newsItemId}/comments`, { page, limit });
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "create_comment",
        "Post a comment on a published news item. Requires news:comment scope.",
        {
            newsItemId: z.string().uuid().describe("News item UUID"),
            content: z.string().min(1).max(2000).describe("Comment text"),
        },
        handleTool(async ({ newsItemId, content }) => {
            const data = await client.post<unknown>(`/api/news/${newsItemId}/comments`, { content });
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "delete_comment",
        "Delete a comment. Owners can delete their own; Mod/Admin can delete any. Requires news:comment scope.",
        {
            newsItemId: z.string().uuid().describe("News item UUID"),
            commentId: z.string().uuid().describe("Comment UUID"),
        },
        handleTool(async ({ newsItemId, commentId }) => {
            const data = await client.delete<unknown>(`/api/news/${newsItemId}/comments/${commentId}`);
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "like_comment",
        "Toggle a like on a comment. Requires news:comment scope.",
        {
            newsItemId: z.string().uuid().describe("News item UUID"),
            commentId: z.string().uuid().describe("Comment UUID"),
        },
        handleTool(async ({ newsItemId, commentId }) => {
            const data = await client.post<unknown>(`/api/news/${newsItemId}/comments/${commentId}/like`);
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "dislike_comment",
        "Toggle a dislike on a comment. Requires news:comment scope.",
        {
            newsItemId: z.string().uuid().describe("News item UUID"),
            commentId: z.string().uuid().describe("Comment UUID"),
        },
        handleTool(async ({ newsItemId, commentId }) => {
            const data = await client.post<unknown>(`/api/news/${newsItemId}/comments/${commentId}/dislike`);
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "hide_comment",
        "Hide or unhide a comment. Hidden comments are invisible to regular users but still visible to Mod/Admin. Requires Mod/Admin role and news:moderate scope.",
        {
            newsItemId: z.string().uuid().describe("News item UUID"),
            commentId: z.string().uuid().describe("Comment UUID"),
            hidden: z.boolean().describe("True to hide, false to unhide"),
        },
        handleTool(async ({ newsItemId, commentId, hidden }) => {
            const data = await client.patch<unknown>(`/api/news/${newsItemId}/comments/${commentId}`, { hidden });
            return JSON.stringify(data, null, 2);
        }),
    );
}