model.h

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#pragma once
 
#include <cstdlib>
#include <filesystem>
#include <vector>
 
#include "task.h"
#include "types.h"
 
namespace todo {
class Model {
private:
    const static inline std::filesystem::path TODO_DIR =
        ".todo";  
    const static inline std::filesystem::path TODO_FILE =
        "todo_list.json";  
 
public:
    Model() = default;
    ~Model() = default;

    void dir_init();

    void add(Task &task, const std::vector<u64> &path);

    void remove(const std::vector<u64> &path);

    void clear();

    void load_file();

    void save_file();

    void change_task_desc(
        const std::vector<u64> &path, const std::string &desc
    );

    void change_task_status(const std::vector<u64> &path, const Status status);

    void change_task_priority(const std::vector<u64> &path, const u16 priority);

    const std::vector<Task> &get_list();

    const Task *get_task(const std::vector<u64> &path);

    const Task *get_parent_task(const std::vector<u64> &path);
 
private:
    std::vector<Task> todo_list_;  

    void change_child_task_status(Task &task, const Status status);
};
}  // namespace todo