const { db, execQueryAsync, execQueryAsyncWithId } = require("./db.js");
const DEBUG = require("../utils/debug").DEBUG;

async function createRoom(roomName, ownerId) {
    const query = `INSERT INTO app_room (room_name, owner_id) VALUES (?, ?)`;
    const values = [roomName.substring(0, 255), ownerId];
    return await execQueryAsyncWithId(query, values);
    // todo add members
}

async function registerMessageInRoom(messageId, roomId, isSeen) {
    const query = `INSERT INTO app_space_message (message_id, room_id) VALUES (?, ?)`;
    const values = [messageId, roomId];
    await execQueryAsync(query, values);

    updateLastUpdateRoom(roomId);

    if (!isSeen) {
        incrementNotSeenRoom(roomId);
    }
}

function updateLastUpdateRoom(roomId) {
    // todo
}

function incrementNotSeenRoom(roomId) {
    // todo
}

async function createThread(roomId, threadName, isDm) {
    const query = `INSERT INTO app_thread (room_id, thread_name, isDm) VALUES (?, ?, ?)`;
    const values = [roomId, threadName, isDm];
    return await execQueryAsync(query, values);
    // todo add members
}

async function registerMessageInThread(messageId, threadId, isSeen) {
    // todo check if it is still a thread or should be a room
    const query = `INSERT IGNORE INTO app_space_message
        (message_id, thread_id) VALUES (?, ?)`;
    const values = [messageId, threadId];
    await execQueryAsync(query, values);
    updateLastUpdateThread(threadId);

    if (!isSeen) {
        incrementNotSeenThread(threadId);
    }
}

function updateLastUpdateRoom(threadId) {
    // todo
    // check for parent
}

function incrementNotSeenThread(threadId) {
    // todo
    // also increment parent room
}

async function isRoomGroup(roomId) {
    return new Promise((resolve, reject) => {
        const query = `SELECT isGroup FROM app_room WHERE room_id = '${roomId}'`;
        db.query(query, (err, results, fields) => {
            if (err) reject(err);
            resolve(results[0].isGroup);
        });
    });
}

async function findSpacesFromMessage(messageId) {
    const query = `SELECT room_id, thread_id FROM app_space_message WHERE message_id = '${messageId}'`;
    return await execQueryAsync(query);
}

async function hasSameMembersAsParent(messageId, parentID) {
    // const query = `SELECT `;
    // return await execQueryAsync(query)
    // todo
}

module.exports = {
    createRoom,
    registerMessageInRoom,
    createThread,
    registerMessageInThread,
    isRoomGroup,
    findSpacesFromMessage,
};