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 registerModerationTools(server: McpServer, client: BetterNewsClient) {
    server.tool(
        "get_mod_queue",
        "Get the moderation queue of pending news items and source submissions. Requires Mod/Admin role and mod:queue scope.",
        {
            page: z.number().int().positive().optional().describe("Page number (default 1)"),
            limit: z.number().int().min(1).max(50).optional().describe("Items per page (default 20)"),
        },
        handleTool(async (args) => {
            const data = await client.get<unknown>("/api/mod/queue", args);
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "get_mod_stats",
        "Get aggregate moderation statistics. Requires Mod/Admin role and mod:stats scope.",
        {},
        handleTool(async () => {
            const data = await client.get<unknown>("/api/mod/stats");
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "list_mod_users",
        "List all users with moderation details. Requires Admin role and mod:users scope.",
        {
            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)"),
            search: z.string().optional().describe("Search by username or email"),
            role: z.enum(["User", "Moderator", "Admin"]).optional().describe("Filter by role"),
            banned: z.boolean().optional().describe("Filter by ban status"),
        },
        handleTool(async (args) => {
            const data = await client.get<unknown>("/api/mod/users", args);
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "get_mod_user",
        "Get detailed moderation view of a specific user. Requires Admin role and mod:users scope.",
        {
            userId: z.string().uuid().describe("User UUID"),
        },
        handleTool(async ({ userId }) => {
            const data = await client.get<unknown>(`/api/mod/users/${userId}`);
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "change_user_role",
        "Change a user's role. Requires Admin role and mod:users scope.",
        {
            userId: z.string().uuid().describe("User UUID"),
            role: z.enum(["User", "Moderator", "Admin"]).describe("New role"),
        },
        handleTool(async ({ userId, role }) => {
            const data = await client.patch<unknown>(`/api/mod/users/${userId}/role`, { role });
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "ban_user",
        "Ban a user. Requires Admin role and mod:users scope.",
        {
            userId: z.string().uuid().describe("User UUID"),
            reason: z.string().max(500).optional().describe("Ban reason"),
            bannedUntil: z.string().datetime().optional().describe("Temporary ban expiry (ISO 8601). Omit for permanent."),
            permanent: z.boolean().optional().describe("Whether the ban is permanent"),
        },
        handleTool(async ({ userId, ...body }) => {
            const data = await client.post<unknown>(`/api/mod/users/${userId}/ban`, body);
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "unban_user",
        "Lift a ban from a user. Requires Admin role and mod:users scope.",
        {
            userId: z.string().uuid().describe("User UUID"),
        },
        handleTool(async ({ userId }) => {
            const data = await client.delete<unknown>(`/api/mod/users/${userId}/ban`);
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "shadowban_user",
        "Toggle shadowban on a user. Shadowbanned users can post but their content is invisible to others. Requires Admin role and mod:users scope.",
        {
            userId: z.string().uuid().describe("User UUID"),
            shadowbanned: z.boolean().describe("True to shadowban, false to remove shadowban"),
        },
        handleTool(async ({ userId, shadowbanned }) => {
            const data = await client.patch<unknown>(`/api/mod/users/${userId}/shadowban`, { shadowbanned });
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "create_mod_user",
        "Create a new user account directly (bypasses email verification). Requires Admin role and mod:users scope.",
        {
            email: z.string().email().describe("User email address"),
            username: z.string().min(3).max(30).describe("Username"),
            displayName: z.string().min(1).max(25).describe("Display name"),
            password: z.string().min(8).describe("Initial password"),
            role: z.enum(["User", "Moderator", "Admin"]).optional().describe("Role (default: User)"),
        },
        handleTool(async (body) => {
            const data = await client.post<unknown>("/api/mod/users", body);
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "list_all_tickets",
        "List all support tickets (mod view). Requires Mod/Admin role and mod:queue scope.",
        {
            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)"),
            status: z.enum(["open", "in_progress", "resolved", "closed"]).optional().describe("Filter by status"),
        },
        handleTool(async (args) => {
            const data = await client.get<unknown>("/api/mod/tickets", args);
            return JSON.stringify(data, null, 2);
        }),
    );

    server.tool(
        "list_mod_comments",
        "List all comments across the platform with moderation details (like/dislike counts, hidden status). Requires Mod/Admin role and mod:queue scope.",
        {
            page: z.number().int().positive().optional().describe("Page number (default 1)"),
            limit: z.number().int().min(1).max(50).optional().describe("Items per page (default 20, max 50)"),
            hidden: z.boolean().optional().describe("Filter by hidden status. Omit to see all."),
            sort: z
                .enum(["top", "most_disliked", "new", "oldest"])
                .optional()
                .describe("Sort order: top = most liked, most_disliked, new (default), oldest"),
        },
        handleTool(async (args) => {
            const data = await client.get<unknown>("/api/mod/comments", args);
            return JSON.stringify(data, null, 2);
        }),
    );
}