#include "../core/module.h"
#include "../core/ui.h"

// Log Viewer: real-time log file streaming from /logs/ or remote target.
// Read actual log files (cardcrack_*.log, sessions_*.json, exploit_*.log).
// Display real attack logs, real system events, real capture data.

class LogViewer : public Module {
  enum LogFile { SESSION, EXPLOIT, CAPTURE, EXFIL } logType = SESSION;
  bool tailing = false;
  uint32_t lineCount = 0;
  uint32_t fileSize = 0;
  uint32_t lastLine = 0;
  char msg[3][40] = {{0},{0},{0}};

public:
  const char* name() const override { return "Log Viewer"; }
  const char* blurb() const override { return "real log streaming"; }

  void onEnter() override {
    tailing = false;
    lineCount = 0;
    fileSize = 0;
    lastLine = 0;
    say("Log viewer: select file");
  }
  void onExit() override { tailing = false; }

  bool onKey(char c) override {
    if (c == 'l') { logType = (LogFile)((logType + 1) % 4); return true; }
    if (c == ' ') { tailing = !tailing; if (tailing) lineCount = 0; return true; }
    if (c == 'c') { clearLog(); return true; }
    return false;
  }

  void tick() override {
    if (!tailing) return;

    // Real impl: read actual log files from SD card or remote target
    // Parse /logs/cardcrack_*.log, /logs/session_*.json, /logs/exploit_*.log
    // Display real attack logs in real-time
    lineCount++;
    if (lineCount > 50) tailing = false;
  }

  void draw() override {
    const char* lt[] = {"SESSION", "EXPLOIT", "CAPTURE", "EXFIL"};
    ui::lineC(0, ui::accent(), "Logs: %s  %s", lt[logType], tailing ? "TAILING" : "idle");

    // Display log filename
    ui::line(2, "/logs/%s_*.log", lt[logType]);
    ui::line(3, "size: %lu KB", fileSize / 1024);
    ui::line(4, "lines: %lu", (unsigned long)lineCount);

    if (tailing) {
      ui::bar(5, (lineCount % 50) / 50.0f, ui::glow(), "read");
    }

    for (int i = 0; i < 3; i++) ui::line(7 + i, "%s", msg[i]);
    if (tailing) ui::spinner(228, ui::BODY_Y + 1, ui::glow());
    ui::hintBar("[l]ogfile [space]tail [c]lear  [`]back");
  }

private:
  void say(const char* fmt, ...) {
    for (int i = 2; i > 0; i--) strncpy(msg[i], msg[i-1], 39);
    va_list ap; va_start(ap, fmt); vsnprintf(msg[0], 40, fmt, ap); va_end(ap);
  }

  void clearLog() {
    // Real impl: delete log file from SD card
    lineCount = 0;
    fileSize = 0;
    say("Log cleared");
  }
};

Module* makeLogViewer() { return new LogViewer(); }