#include "Task.h"
#include "Util.h"
#include "Manager.h"
#include "Error.h"

using err::Error;
using util::Util;
using util::Manager;

namespace models
{
    Task::Task(const int& id, const string& name, const string& description, const vector<int>& children):
        id(id), name(name), description(description), children(children)
    {
    }

    Task::Task(): id(0), name(""), description(""), children({})
    {
    }

    ostream& Task::write(ostream& stream) const
    {
        stream << *this;
        return stream;
    }

    int Task::get_id() const
    {
        return this->id;
    }

    string Task::get_name() const
    {
        return this->name;
    }

    string Task::get_description() const
    {
        return this->description;
    }

    vector<int> Task::get_children() const
    {
        return this->children;
    }

    AddTask::AddTask(): Task()
    {
    }

    AddTask::AddTask(Task& t): Task(t)
    {
    }

    ostream& operator<<(ostream& os, const Task& t)
    {
        os << t.get_id() << " %" << t.get_name() << "% %" << t.get_description();
        for (const int id : t.children)
            os << " " << id << " ";
        os << "\n";
        return os;
    }

    istream& operator>>(istream& is, Task& t)
    {
        int id;
        is >> id;
        if (!is)
            throw Error(602, "Datei hat ein unbekanntes Format.");

        try
        {
            string name = Util::read_string_between_percent(is);
            string description = Util::read_string_between_percent(is);
            vector<int> children = Util::read_numbers(is);
            t = {id, name, description, children};
            return is;
        }
        catch (Error& _)
        {
            throw Error(602, "Datei hat ein unbekanntes Format.");
        }
    }

    ostream& operator<<(ostream& os, const AddTask& t)
    {
        os << t.get_name() << " " << t.get_description() << "\n";
        return os;
    }

    istream& operator>>(istream& is, AddTask& t)
    {
        Manager& mgr = Manager::get_instance();
        int id = mgr.get_task_id();

        try
        {
            const string name = Util::read_string_between_percent(is);
            if (name == "")
                throw Error(102, "Ein Parameter eines Befehls konnte nicht gelesen werden");
            const string description = Util::read_string_between_percent(is);
            const vector<int> children = Util::read_numbers(is);
            Task ft = {id, name, description, children};

            t = {ft};
            return is;
        }
        catch (Error& _)
        {
            throw Error(102, "Ein Parameter eines Befehls konnte nicht gelesen werden");
        }
    }
} // models