#pragma once

#include <memory>
#include <string>
#include <vector>

#include "app.h"
#include "apps/note_editor.h"
#include "dialog_model.h"
#include "file_list.h"
#include "line_editor.h"
#include "list_model.h"
#include "services/file_ops.h"
#include "ui/theme.h"

namespace roro {

// Notes (docs/milestones/F1.md, Q141-Q150): plain text files in /notes, listed by their first line,
// newest first. n starts one, Enter opens it in the editor, which saves by itself; r renames the
// file, d deletes it after asking, s sorts by name or by date.
class NotesApp : public App {
   public:
    NotesApp(FileOps& ops, StorageService& storage, ClockService& clock, PowerService& power)
        : ops_(ops), storage_(storage), editor_(storage, clock, power) {}
    void onEnter() override;
    void onExit() override;
    bool onKey(const KeyEvent& e) override;
    bool textEntryActive() const override { return view_ == View::Edit || view_ == View::Name; }
    void update(uint32_t nowMs) override;
    void draw(Canvas& c) override;

   private:
    enum class View { List, Edit, Name, NoMemory };
    enum class Wait { None, List, Work };
    static constexpr int kRows = 8;
    static constexpr size_t kStartFloor = 55 * 1024;  // Q86, Q144
    static constexpr const char* kFolder = "/notes";

    void reload(const std::string& select = "");
    void onFinished(const FileOps::Status& s);
    bool onListKey(const KeyEvent& e);
    bool onNameKey(const KeyEvent& e);
    void leaveEditor();
    std::string selectedPath() const;  // "" in an empty list
    std::string titleOf(int row);
    void readTitles();
    void say(const std::string& text);

    FileOps& ops_;
    StorageService& storage_;
    NoteEditor editor_;

    View view_ = View::List;
    files::FileList list_;
    std::vector<uint16_t> notes_;  // the entries of list_ that are notes
    files::FileSort sort_ = files::FileSort::Date;
    ListModel rows_{kRows};
    bool wantList_ = false, loaded_ = false, cardPresent_ = false, mended_ = false;
    std::string selectAfter_;
    int selectIndex_ = 0;
    Wait wait_ = Wait::None;
    std::vector<std::string> titles_;  // of the rows on screen
    int titlesFrom_ = -1;
    std::unique_ptr<DialogModel> dialog_;
    std::string target_, question_;
    LineEditor name_{40};
    std::string message_;
    uint32_t messageMs_ = 0, lastDrawMs_ = 0;
};

}  // namespace roro