3_2_message - final exam

function solve(input) {
    let capacity = Number(input.shift())
    let line = input.shift()
    let users = {}

    while (line != "Statistics") {
        let [command, x, a, b] = line.split('=')
        if (command == 'Add') {
            if(!users.hasOwnProperty(x)) {
                users[x] = {sent: Number(a), recieved: Number(b)}
            }
        }else if (command == 'Message') {
            if(users.hasOwnProperty(x) && users.hasOwnProperty(a)){
                users[x].sent += 1
                users[a].recieved += 1

            if(users[x].sent + users[x].recieved >= capacity) {
                delete users[x]
                console.log(`${x} reached the capacity!`)
            }
            if(users[a].sent + users[a].recieved >= capacity) {
                delete users[a]
                console.log(`${a} reached the capacity!`)
            }
        }
        }else if (command == 'Empty'){
            if(users.hasOwnProperty(x)) {
                delete users[x]
            }
            if (x == "All"){
                users = {}
            }
        }
        line = input.shift()
    }
    let usersCount = Object.keys(users).length
    console.log(`Users count: ${usersCount}`)

    let sorted = Object.entries(users).sort((a,b) => Number(b[1].recieved) - Number(a[1].recieved) || a[0].localeCompare(b[0]))
    for(let user of sorted){
        console.log(`${user[0]} - ${Number(user[1].sent) + Number(user[1].recieved)}`)
    }
}