#include "soundsettingspage.h"
#include "sound_manager.h"
#include "../db/db_manager.h"
#include "../transport/gui_bridge.h"
#include "../../lib/mem.h"
extern "C" {
#include "../transport/chat_core.h"
}
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QCheckBox>
#include <QSlider>
#include <QLabel>
#include <QFrame>
#include <QDebug>

SoundSettingsPage::SoundSettingsPage(DbManager* db, QWidget* parent)
    : QWidget(parent)
    , m_db(db)
{
    auto* layout = new QVBoxLayout(this);
    layout->setContentsMargins(0, 12, 0, 0);
    layout->setSpacing(14);

    m_enabledCheck = new QCheckBox("Enable sounds", this);
    m_enabledCheck->setStyleSheet("font-size: 13px;");
    layout->addWidget(m_enabledCheck);

    auto* volLayout = new QHBoxLayout();
    auto* volLabel = new QLabel("Volume:", this);
    volLabel->setStyleSheet("font-size: 13px;");
    volLayout->addWidget(volLabel);

    m_volumeSlider = new QSlider(Qt::Horizontal, this);
    m_volumeSlider->setRange(0, 100);
    m_volumeSlider->setFixedWidth(200);
    m_volumeSlider->setStyleSheet(
        "QSlider::groove:horizontal { height: 6px; border-radius: 3px; background: palette(mid); }"
        "QSlider::handle:horizontal { width: 14px; height: 14px; margin: -4px 0; border-radius: 7px; background: #3390EC; }");
    volLayout->addWidget(m_volumeSlider);

    m_volumeLabel = new QLabel("80%", this);
    m_volumeLabel->setFixedWidth(36);
    m_volumeLabel->setStyleSheet("font-size: 13px;");
    volLayout->addWidget(m_volumeLabel);
    volLayout->addStretch();
    layout->addLayout(volLayout);

    auto* sep = new QFrame(this);
    sep->setFrameShape(QFrame::HLine);
    sep->setStyleSheet("QFrame { color: palette(mid); }");
    layout->addWidget(sep);

    auto* header = new QLabel("Events", this);
    header->setStyleSheet("font-size: 13px; font-weight: bold;");
    layout->addWidget(header);

    m_events[0] = {"msg_incoming", "Incoming message", nullptr, nullptr, nullptr};
    m_events[1] = {"msg_outgoing", "Outgoing message", nullptr, nullptr, nullptr};
    m_events[2] = {"connect",     "Peer connected",  nullptr, nullptr, nullptr};
    m_events[3] = {"disconnect",  "Peer disconnected", nullptr, nullptr, nullptr};

    for (int i = 0; i < 4; i++) {
        auto& e = m_events[i];
        auto* row = new QHBoxLayout();
        row->setSpacing(8);

        auto* lbl = new QLabel(e.label, this);
        lbl->setFixedWidth(140);
        lbl->setStyleSheet("font-size: 13px;");
        row->addWidget(lbl);

        e.check = new QCheckBox(this);
        row->addWidget(e.check);

        e.slider = new QSlider(Qt::Horizontal, this);
        e.slider->setRange(0, 100);
        e.slider->setFixedWidth(100);
        e.slider->setStyleSheet(
            "QSlider::groove:horizontal { height: 4px; border-radius: 2px; background: palette(mid); }"
            "QSlider::handle:horizontal { width: 10px; height: 10px; margin: -3px 0; border-radius: 5px; background: #3390EC; }");
        row->addWidget(e.slider);

        e.volLabel = new QLabel("80%", this);
        e.volLabel->setFixedWidth(30);
        e.volLabel->setStyleSheet("font-size: 12px;");
        row->addWidget(e.volLabel);

        row->addStretch();
        layout->addLayout(row);

        connect(e.slider, &QSlider::valueChanged, this, [this, i](int val) {
            m_events[i].volLabel->setText(QString::number(val) + "%");
        });
    }

    layout->addStretch();

    connect(m_enabledCheck, &QCheckBox::stateChanged, this, [this](int state) {
        bool on = (state == Qt::Checked);
        m_volumeSlider->setEnabled(on);
        m_volumeLabel->setEnabled(on);
    });
    connect(m_volumeSlider, &QSlider::valueChanged, this, [this](int val) {
        m_volumeLabel->setText(QString::number(val) + "%");
    });
}

void SoundSettingsPage::loadFromDb() {
    if (!m_db) return;

    bool enabled = m_db->getUiStateInt("sound_enabled", 1);
    m_enabledCheck->setChecked(enabled);

    int vol = m_db->getUiStateInt("sound_volume", 80);
    m_volumeSlider->setValue(vol);
    m_volumeSlider->setEnabled(enabled);
    m_volumeLabel->setEnabled(enabled);
    m_volumeLabel->setText(QString::number(vol) + "%");

    for (int i = 0; i < 4; i++) {
        auto& e = m_events[i];
        QString onKey  = QStringLiteral("sound_%1_on").arg(e.key);
        QString volKey = QStringLiteral("sound_%1_vol").arg(e.key);
        bool on = m_db->getUiStateInt(onKey, i == 0 ? 1 : 0);  // only msg_incoming on by default
        int ev = m_db->getUiStateInt(volKey, 80);
        e.check->setChecked(on);
        e.slider->setValue(ev);
        e.volLabel->setText(QString::number(ev) + "%");
    }
}

void SoundSettingsPage::applyAndSave() {
    SoundManager* sm = SoundManager::instance();

    bool enabled = m_enabledCheck->isChecked();
    float masterVol = m_volumeSlider->value() / 100.0f;
    sm->setEnabled(enabled);
    sm->setVolume(masterVol);

    for (int i = 0; i < 4; i++) {
        auto& e = m_events[i];
        bool on = e.check->isChecked();
        float ev = e.slider->value() / 100.0f;
        sm->setEvent(e.key, on, ev);

        /* async DB persist — key\0value\0 */
        QString onKey  = QStringLiteral("sound_%1_on").arg(e.key);
        QString volKey = QStringLiteral("sound_%1_vol").arg(e.key);
        QByteArray onVal  = on ? QByteArray("1") : QByteArray("0");
        QByteArray volVal = QByteArray::number(e.slider->value());

        for (int j = 0; j < 2; j++) {
            const char* k = j == 0 ? onKey.toUtf8().constData() : volKey.toUtf8().constData();
            const char* v = j == 0 ? onVal.constData() : volVal.constData();
            size_t klen = strlen(k), vlen = strlen(v);
            size_t total = klen + 1 + vlen + 1;
            if (total > 256) continue;
            void* arg = u_malloc(total);
            memcpy(arg, k, klen + 1);
            memcpy((char*)arg + klen + 1, v, vlen + 1);
            gui_bridge_post_uasync_fn(chat_core_save_ui_state_trampoline, arg);
        }
    }

    /* save global settings */
    {
        const char* keys[] = {"sound_enabled", "sound_volume"};
        QByteArray vals[] = {enabled ? QByteArray("1") : QByteArray("0"),
                             QByteArray::number(m_volumeSlider->value())};
        for (int j = 0; j < 2; j++) {
            size_t klen = strlen(keys[j]), vlen = vals[j].size();
            size_t total = klen + 1 + vlen + 1;
            if (total > 256) continue;
            void* arg = u_malloc(total);
            memcpy(arg, keys[j], klen + 1);
            memcpy((char*)arg + klen + 1, vals[j].constData(), vlen + 1);
            gui_bridge_post_uasync_fn(chat_core_save_ui_state_trampoline, arg);
        }
    }
}