1-task

function solution(initData) {
    const farmersNum = Number(initData.shift());
    const farmerDetails = initData.slice(0, farmersNum);
    const commands = initData.slice(farmersNum, - 1);
    const farmers = farmerDetails.reduce((acc, elem) => {
        const [name, workArea, tasksList] = elem.split(' ');
        acc[name] = [workArea, tasksList];
        return acc;
    }, {});

    for ( line of commands) {
        const commList = line.split(' / ');
        const command = commList[0];
        const farmerName = commList[1];

        if (! farmerName in farmers) return

        const [ farmerArea, farmerTasks ] = farmers[farmerName];

        switch (command) {

            case("Execute"):
            const currentArea = commList[2];
            const currentTask = commList[3];

                if ( ( currentArea === farmerArea ) && ( farmerTasks.includes(currentTask) )) {
                    console.log(`${farmerName} has executed the task: ${currentTask}!`);
                } else console.log(`${farmerName} cannot execute the task: ${currentTask}.`);
                break;

            case('Change Area'):
                const newArea = commList[2];
                farmers[farmerName][0] = newArea;

                console.log(`${farmerName} has changed their work area to: ${newArea}`);
                break;

            case('Learn Task'):
                const newTask = commList[2];

                if (farmerTasks.includes(newTask)) {
                    console.log(`${farmerName} already knows how to perform ${newTask}.`);
                } else {
                    console.log(`${farmerName} has learned a new task: ${newTask}.`);
                    farmers[farmerName][1] += `,${newTask}`;
                break;
                }
        }

    }

    for (currFarmer in farmers) {

        const [area, tasks] = farmers[currFarmer];
        const orderedTasks = tasks.split(',').sort();

        console.log(`Farmer: ${currFarmer}, Area: ${area}, Tasks: ${orderedTasks.join(', ')}`)
    }
}


solution([
        "3",
        "Alex apiary harvesting,honeycomb",
        "Emma barn milking,cleaning",
        "Chris garden planting,weeding",
        "Execute / Chris / garden / pruning",
        "Execute / Chris / garden / planting,weeding",  // TODO тук реално нямаш задача "planting,weeding" обаче излиза че имаш по начина по който ги добавяш, все едно е една задача
        "End"
    ]
)

//  OUTPUT

// Chris cannot execute the task: pruning.
// Chris has executed the task: planting,weeding! TODO тук се принитра, че я изпълнява
// Farmer: Alex, Area: apiary, Tasks: harvesting, honeycomb
// Farmer: Emma, Area: barn, Tasks: cleaning, milking
// Farmer: Chris, Area: garden, Tasks: planting, weeding