#ifndef EXTENTION_COMPLETION_H
#define EXTENTION_COMPLETION_H

#include "editor/decl.h"
#include "io/sysio.h"
#include "pch.h"
#include "utils/utils.h"
#include "windows/decl.h"

struct CompletionItem {
  std::string label;
  uint8_t kind;
  std::optional<std::string> detail;
  std::optional<std::string> documentation;
  bool is_markup = false;
  bool deprecated = false;
  bool asis = true;
  std::string sort;
  std::string filter;
  bool snippet = false;
  std::vector<TextEdit> edits;
  json original;
  std::vector<char> end_chars;
};

struct CompletionBox : Popup {
  struct CompletionSession *session;
  CompletionBox() { this->hidden = true; }
  void render(std::vector<ScreenCell> &buffer, Coord size, Coord pos) override;
  void handle_click(KeyEvent, Coord) override { this->hidden = true; }
  ~CompletionBox() {}
};

struct CompletionSession {
  struct Editor *editor;
  std::shared_mutex mtx;
  bool active = false;
  Coord hook;
  uint32_t select = 0;
  uint32_t scroll = 0;
  std::vector<CompletionItem> items;
  std::vector<uint32_t> visible;
  bool complete = true;
  std::optional<char> trigger_char;
  uint8_t trigger = 0;
  CompletionBox *box = nullptr;
  uint32_t doc = UINT32_MAX;
  std::atomic<bool> hover_dirty = false;
  int version;

  CompletionSession(Editor *editor) : editor(editor) {}
  void resolve_doc();
  void accept();
  void next();
  void prev();
  void choose(uint8_t index);
  void handle(KeyEvent event);
};

CompletionBox *init_completion_box(CompletionSession *session);
void completion_request(Editor *editor);
void completion_filter(Editor *editor);

#endif