#include "ptt_hotkey_manager.h"
#include "radio_audio_engine.h"
#include "../db/db_manager.h"
#include "qhotkey.h"

#include <QKeySequence>
#include <QDebug>

static PttHotkeyManager* g_pttHotkeys = nullptr;

PttHotkeyManager* PttHotkeyManager::instance() {
    if (!g_pttHotkeys) g_pttHotkeys = new PttHotkeyManager();
    return g_pttHotkeys;
}

bool PttHotkeyManager::isSupported() {
    return QHotkey::isPlatformSupported();
}

void PttHotkeyManager::init(DbManager* db) {
    m_db = db;
    reload();
}

QStringList PttHotkeyManager::hotkeys() const {
    return m_seqs;
}

void PttHotkeyManager::setHotkeys(const QStringList& seqs) {
    applyHotkeys(seqs);
}

void PttHotkeyManager::reload() {
    QStringList seqs;
    if (m_db && m_db->isOpen()) {
        const QString raw = m_db->getUiState("radio_ptt_hotkeys");
        if (!raw.isEmpty())
            seqs = raw.split('|', Qt::SkipEmptyParts);
    }
    applyHotkeys(seqs);
}

void PttHotkeyManager::clearHotkeys() {
    for (QHotkey* h : m_hotkeys) {
        h->resetShortcut();
        h->deleteLater();
    }
    m_hotkeys.clear();
}

void PttHotkeyManager::applyHotkeys(const QStringList& seqs) {
    clearHotkeys();
    m_seqs.clear();

    for (const QString& s : seqs) {
        QKeySequence seq(s);
        if (seq.isEmpty()) continue;
        auto* hk = new QHotkey(seq, true, this);
        if (!hk->isRegistered()) {
            qWarning("PttHotkey: failed to register '%s'", qPrintable(s));
            hk->deleteLater();
            continue;
        }
        connect(hk, &QHotkey::activated, this, []() {
            RadioAudioEngine::instance()->talkBegin();
        });
        connect(hk, &QHotkey::released, this, []() {
            RadioAudioEngine::instance()->talkEnd();
        });
        m_hotkeys.append(hk);
        m_seqs.append(seq.toString());
    }

    qDebug("PttHotkey: applied %d hotkey(s)", (int)m_hotkeys.size());
}