// ===================== ComposeView =====================

#include "composeview.h"
#include <QDialog>
#include <QInputDialog>
#include <QVBoxLayout>
#include <QDialogButtonBox>
#include <QFileDialog>
#include <QFileInfo>
#include <QMessageBox>
#include <QLabel>
#include <QPushButton>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QPixmap>
#include <QStyle>
#include <QApplication>
#include <QFileIconProvider>
ComposeView::ComposeView(QWidget *parent) : QWidget(parent) {
    setupUI();
    // Connect the rich text editor's signature signal to our slot
    connect(m_bodyEditor, &RichTextEditor::signatureClicked, this, &ComposeView::onSignatureClicked);
    connect(m_bodyEditor, &RichTextEditor::signatureEditRequested, this, &ComposeView::onSignatureEditRequested);
}

ComposeView::~ComposeView() {
    // Destructor implementation
}

void ComposeView::onSignatureClicked() {
    // This slot is called when the signature button in the rich text editor is clicked
    // The actual menu handling is done in RichTextEditor, so we just need to
    // handle any ComposeView-specific logic here if needed
}

void ComposeView::onSignatureEditRequested() {
    QDialog dialog(this);
    dialog.setWindowTitle(tr("Edit Signature"));
    dialog.setMinimumSize(600, 400);

    QVBoxLayout *layout = new QVBoxLayout(&dialog);

    RichTextEditor *editor = new RichTextEditor(&dialog);
    editor->setupToolbar(layout);
    layout->addWidget(editor);

    QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, Qt::Horizontal, &dialog);
    layout->addWidget(buttonBox);

    connect(buttonBox, &QDialogButtonBox::accepted, &dialog, &QDialog::accept);
    connect(buttonBox, &QDialogButtonBox::rejected, &dialog, &QDialog::reject);

    if (dialog.exec() == QDialog::Accepted) {
        QString signatureHtml = editor->toHtml();
        if (!signatureHtml.isEmpty()) {
            QTextCursor cursor = m_bodyEditor->textCursor();
            cursor.insertHtml(signatureHtml);
        }
    }
}

void ComposeView::setAccountService(AccountService *service) {
    m_accountService = service;
    populateAccountCombo();
}

void ComposeView::populateAccountCombo() {
    if (!m_accountService) {
        qWarning() << "AccountService not set";
        return;
    }

    m_accountCombo->clear();
    m_accountCombo->addItem(tr("Select Account..."), QVariant());

    QVector<Account> accounts = m_accountService->getAllAccounts();
    for (const Account &account : accounts) {
        m_accountCombo->addItem(account.email(), account.id());
    }

    // Select the first account by default if there are accounts
    if (accounts.size() > 0) {
        m_accountCombo->setCurrentIndex(1); // Skip the placeholder item
        m_currentAccountId = accounts.first().id();
    }
}

void ComposeView::onAccountChanged(int index) {
    if (index <= 0) {
        // Placeholder item selected or invalid index
        m_currentAccountId = -1;
        return;
    }

    m_currentAccountId = m_accountCombo->itemData(index).toInt();
    loadSignatureForCurrentAccount();
}

void ComposeView::loadSignatureForCurrentAccount() {
    if (!m_accountService || m_currentAccountId <= 0) {
        // Clear signature if no account selected
        m_bodyEditor->clear();
        return;
    }

    Account* account = m_accountService->findAccountById(m_currentAccountId);
    if (account) {
        // For now, we'll just clear the editor since we don't have a signature field in Account yet
        // In a real implementation, we would retrieve and display the signature
        m_bodyEditor->clear();
        delete account;
    } else {
        m_bodyEditor->clear();
    }
}

void ComposeView::setupUI() {
    QVBoxLayout *mainLayout = new QVBoxLayout(this);
    mainLayout->setContentsMargins(20, 15, 20, 15);
    mainLayout->setSpacing(8);

    this->setStyleSheet(
        "QLineEdit, QTextEdit { border: 1px solid #d1d1d6; border-radius: 4px; padding: 8px; font-family: 'Segoe UI', Helvetica; font-size: 13px; }"
        "QLineEdit:focus, QTextEdit:focus { border-color: #1976D2; }"
    );

    // De: field + Account selector (renamed from From:)
    QHBoxLayout *fromLayout = new QHBoxLayout();
    QLabel *fromLabel = new QLabel(tr("De:"));
    fromLabel->setFixedWidth(40);
    fromLabel->setStyleSheet("font-weight: bold; color: #555;");
    m_accountCombo = new QComboBox();
    m_accountCombo->setFixedWidth(180);
    m_accountCombo->setStyleSheet(
        "QComboBox { border: 1px solid #d1d1d6; border-radius: 4px; padding: 6px 8px; "
        "background: white; min-height: 20px; }"
        "QComboBox:hover { border-color: #bdbdbd; }"
        "QComboBox:focus { border-color: #1976D2; }"
        "QComboBox::drop-down { border: none; width: 20px; }"
        "QComboBox::down-arrow { image: url(:/icons/dropdown.png); width: 10px; height: 10px; }"
    );
    connect(m_accountCombo, QOverload<int>::of(&QComboBox::currentIndexChanged),
            this, &ComposeView::onAccountChanged);
    fromLayout->addWidget(fromLabel);
    fromLayout->addWidget(m_accountCombo);
    fromLayout->addStretch();               // Este resorte empuja el par (label+combo) a la izquierda
    mainLayout->addLayout(fromLayout);

    // Para: field + Cc/Bcc toggle buttons
    QHBoxLayout *toLayout = new QHBoxLayout();
    QLabel *toLabel = new QLabel(tr("Para:"));
        toLabel->setFixedWidth(40);
        toLabel->setStyleSheet("font-weight: bold; color: #555;");
        m_toField = new everload_tags::TagsLineEdit();

    toLayout->addWidget(toLabel);
    toLayout->addWidget(m_toField, 1);

    m_ccButton = new QPushButton("Cc");
    m_ccButton->setFixedWidth(32);
    m_ccButton->setStyleSheet(
        "QPushButton { background: #e0e0e0; border: 1px solid #ccc; border-radius: 3px; font-size: 11px; padding: 2px; }"
        "QPushButton:hover { background: #d0d0d0; }"
    );
    connect(m_ccButton, &QPushButton::clicked, this, &ComposeView::onCcToggle);
    toLayout->addWidget(m_ccButton);

    m_bccButton = new QPushButton("Bcc");
    m_bccButton->setFixedWidth(36);
    m_bccButton->setStyleSheet(
        "QPushButton { background: #e0e0e0; border: 1px solid #ccc; border-radius: 3px; font-size: 11px; padding: 2px; }"
        "QPushButton:hover { background: #d0d0d0; }"
    );
    connect(m_bccButton, &QPushButton::clicked, this, &ComposeView::onBccToggle);
    toLayout->addWidget(m_bccButton);

    mainLayout->addLayout(toLayout);

    // Cc: row (hidden by default)
    m_ccRow = new QWidget();
    QHBoxLayout *ccLayout = new QHBoxLayout(m_ccRow);
    ccLayout->setContentsMargins(0, 0, 0, 0);
    QLabel *ccLabel = new QLabel(tr("Cc:"));
    ccLabel->setFixedWidth(40);
    ccLabel->setStyleSheet("color: #555;");
    m_ccField = new everload_tags::TagsLineEdit();

    ccLayout->addWidget(ccLabel);
    ccLayout->addWidget(m_ccField, 1);

    m_hideCcButton = new QPushButton("");
    m_hideCcButton->setIcon(QIcon(QStringLiteral(":/icons/resources/icons/SVG/Linear/Essentional, UI/Close Square.svg")));
    m_hideCcButton->setFixedSize(20, 20);
    m_hideCcButton->setToolTip(tr("Hide Cc"));
    m_hideCcButton->setStyleSheet(
        "QPushButton { background: transparent; border: none; color: blue; font-weight: bold; }"
        "QPushButton:hover { color: #333; }"
    );
    connect(m_hideCcButton, &QPushButton::clicked, this, &ComposeView::onCcToggle);
    ccLayout->addWidget(m_hideCcButton);

    m_ccRow->setVisible(false);
    mainLayout->addWidget(m_ccRow);

    // Bcc: row (hidden by default)
    m_bccRow = new QWidget();
    QHBoxLayout *bccLayout = new QHBoxLayout(m_bccRow);
    bccLayout->setContentsMargins(0, 0, 0, 0);
    QLabel *bccLabel = new QLabel(tr("Bcc:"));
    bccLabel->setFixedWidth(40);
    bccLabel->setStyleSheet("color: #555;");
    m_bccField = new everload_tags::TagsLineEdit();

    bccLayout->addWidget(bccLabel);
    bccLayout->addWidget(m_bccField, 1);

    m_hideBccButton = new QPushButton("");
    m_hideBccButton->setFixedSize(20, 20);
    m_hideBccButton->setIcon(QIcon(QStringLiteral(":/icons/resources/icons/SVG/Linear/Essentional, UI/Close Square.svg")));
    m_hideBccButton->setToolTip(tr("Hide Bcc"));
    m_hideBccButton->setStyleSheet(
        "QPushButton { background: transparent; border: none; color: blue; font-weight: bold; }"
        "QPushButton:hover { color: #333; }"
    );
    connect(m_hideBccButton, &QPushButton::clicked, this, &ComposeView::onBccToggle);
    bccLayout->addWidget(m_hideBccButton);

    m_bccRow->setVisible(false);
    mainLayout->addWidget(m_bccRow);

    // Asunto: field
    QHBoxLayout *subjectLayout = new QHBoxLayout();
    QLabel *subjectLabel = new QLabel(tr("Asunto:"));
    subjectLabel->setFixedWidth(60);
    subjectLabel->setStyleSheet("font-weight: bold; color: #555;");
    m_subjectField = new QLineEdit();
    m_subjectField->setPlaceholderText(tr("Subject"));
    m_subjectField->setFixedHeight(40);
    QFont subjectFont = m_subjectField->font();
    subjectFont.setPointSize(14);
    subjectFont.setBold(true);
    m_subjectField->setFont(subjectFont);
    //subjectLayout->addWidget(subjectLabel);
    subjectLayout->addWidget(m_subjectField, 1);

    // Detach button placed to the right of the subject line
    m_detachButton = new QPushButton("");//("↥ Detach");
    m_detachButton->setIcon(QIcon(QStringLiteral(":/icons/resources/icons/SVG/Linear/Arrows Action/Square Top Down.svg")));
    m_detachButton->setToolTip(tr("Open compose window in a separate window"));
    m_detachButton->setStyleSheet(
        "QPushButton { background: transparent; border: 1px solid #d1d1d6; border-radius: 4px; padding: 6px 12px; color: #555; font-size: 12px; }"
        "QPushButton:hover { background: #f0f0f0; }"
    );
    connect(m_detachButton, &QPushButton::clicked, this, &ComposeView::onDetachClicked);
    subjectLayout->addWidget(m_detachButton);

    mainLayout->addLayout(subjectLayout);

    // Separator line admin@email.com
    QFrame *line1 = new QFrame();
    line1->setFrameShape(QFrame::HLine);
    line1->setStyleSheet("color: #e0e0e0;");
    mainLayout->addWidget(line1);

    // Rich text editor with toolbar
    m_bodyEditor = new RichTextEditor();
    m_bodyEditor->setupToolbar(mainLayout);
    mainLayout->addWidget(m_bodyEditor, 1);

    // Schedule panel
    m_schedulePanel = new QWidget();
    QHBoxLayout *scheduleLayout = new QHBoxLayout(m_schedulePanel);
    scheduleLayout->setContentsMargins(0, 0, 0, 0);
    QLabel *scheduleLabel = new QLabel(tr("Send at:"));
    scheduleLabel->setStyleSheet("color: #555; font-weight: bold;");
    m_schedulePicker = new QDateTimeEdit(QDateTime::currentDateTime().addSecs(3600));
    m_schedulePicker->setCalendarPopup(true);
    m_schedulePicker->setDisplayFormat("dd/MM/yyyy hh:mm AP");
    scheduleLayout->addWidget(scheduleLabel);
    scheduleLayout->addWidget(m_schedulePicker);
    scheduleLayout->addStretch();

    m_scheduleSendButton = new QPushButton(tr("Schedule Send"));
    m_scheduleSendButton->setFixedWidth(150);
    m_scheduleSendButton->setStyleSheet(
        "QPushButton { background-color: #1976D2; color: white; border: none; border-radius: 4px; padding: 6px 16px; font-weight: bold; }"
        "QPushButton:hover { background-color: #1565C0; }"
    );
    connect(m_scheduleSendButton, &QPushButton::clicked, this, &ComposeView::onScheduleClicked);
    scheduleLayout->addWidget(m_scheduleSendButton, 2);
    m_schedulePanel->setVisible(false);
    m_schedulePanel->setVisible(false);
    mainLayout->addWidget(m_schedulePanel);

    // Attachment section
    QHBoxLayout *attachmentLayout = new QHBoxLayout();
    m_attachmentList = new QListWidget();
    m_attachmentList->setViewMode(QListView::IconMode);
    m_attachmentList->setResizeMode(QListView::Adjust);
    m_attachmentList->setMovement(QListView::Static);
    m_attachmentList->setGridSize(QSize(300, 50));
    m_attachmentList->setSpacing(10);
    m_attachmentList->setLayoutDirection(Qt::LeftToRight);
    m_attachmentList->setSelectionMode(QAbstractItemView::SingleSelection);
    m_attachmentList->setStyleSheet(
        "QListWidget { border: 1px solid #d1d1d6; border-radius: 4px; }"
        "QListWidget::item { border: none; padding: 5px; }"
        "QListWidget::item:selected { background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #1976D2, stop:1 #1565C0); border-radius: 4px; }"
    );
    m_attachmentList->setVisible(false);
    attachmentLayout->addWidget(m_attachmentList, 1);

    mainLayout->addLayout(attachmentLayout);

    // Action buttons row
    QHBoxLayout *actionsLayout = new QHBoxLayout();

    // Attachments and Templates buttons (right-aligned)
    QHBoxLayout *buttonRow = new QHBoxLayout();
    m_attachButton = new QToolButton();
    m_attachButton->setIcon(QIcon(QStringLiteral(":/icons/resources/icons/SVG/Outline/Messages, Conversation/Paperclip.svg")));
    m_attachButton->setToolTip(tr("Add attachment"));
    m_attachButton->setIconSize(QSize(20,20));
    m_attachButton->setStyleSheet("QToolButton { border: none; padding: 5px; } QToolButton:hover { background: #e0e0e0; border-radius: 3px; }");
    connect(m_attachButton, &QToolButton::clicked, this, &ComposeView::onAddAttachmentClicked);
    buttonRow->addWidget(m_attachButton);

    m_templateButton = new QToolButton();
    m_templateButton->setIcon(QIcon(QStringLiteral(":/icons/resources/icons/SVG/Outline/Files/File Text.svg"))); // Assuming you have a template icon
    m_templateButton->setToolTip(tr("Email templates"));
    m_templateButton->setIconSize(QSize(20,20));
    m_templateButton->setStyleSheet("QToolButton { border: none; padding: 5px; } QToolButton:hover { background: #e0e0e0; border-radius: 3px; }");
    connect(m_templateButton, &QToolButton::clicked, this, &ComposeView::onTemplateClicked);
    buttonRow->addWidget(m_templateButton);
    buttonRow->setSpacing(4);
    actionsLayout->addLayout(buttonRow);
    actionsLayout->addStretch();               // Este resorte empuja el par (label+combo) a la izquierda


    m_discardButton = new QPushButton(tr("Discard"));
    m_discardButton->setStyleSheet(
        "QPushButton { background: transparent; border: 1px solid #d1d1d6; border-radius: 4px; padding: 8px 20px; color: #555; }"
        "QPushButton:hover { background: #f5f5f5; }"
    );
    connect(m_discardButton, &QPushButton::clicked, this, &ComposeView::discardRequested);
    actionsLayout->addWidget(m_discardButton);

    // Split button for Send / Schedule
    m_sendMenu = new QMenu(this);
    m_sendNowAction = m_sendMenu->addAction(tr("Send Now"));
    connect(m_sendNowAction, &QAction::triggered, this, &ComposeView::onSendClicked);
    m_scheduleAction = m_sendMenu->addAction(tr("Schedule for later..."));
    connect(m_scheduleAction, &QAction::triggered, [this]() {
        m_schedulePanel->setVisible(true);
    });

    m_sendSplit = new QToolButton();
    m_sendSplit->setText(tr("Send"));
    m_sendSplit->setIcon(QIcon(QStringLiteral(":/icons/resources/icons/SVG/Bold Duotone/Messages, Conversation/Plain.svg")));
    m_templateButton->setIconSize(QSize(20,20));
    //m_sendSplit->setToolButtonStyle(Qt::ToolButtonTextOnly);
    m_sendSplit->setPopupMode(QToolButton::MenuButtonPopup);
    m_sendSplit->setMenu(m_sendMenu);
    m_sendSplit->setStyleSheet(
        "QToolButton { background-color: #1976D2; color: white; border: none; border-radius: 4px; padding: 8px 24px; font-weight: bold; }"
        "QToolButton:hover { background-color: #1565C0; }"
        "QToolButton::menu-button { border-left: 1px solid rgba(255,255,255,0.3); padding-left: 8px; padding-right: 8px; width: 20px;}"
        "QToolButton::menu-button:hover { background-color: #1565C0; border-top-right-radius: 4px; border-bottom-right-radius: 4px; }"
    );
    connect(m_sendSplit, &QToolButton::clicked, this, &ComposeView::onSendClicked);
    actionsLayout->addWidget(m_sendSplit);

    mainLayout->addLayout(actionsLayout);
}

void ComposeView::onCcToggle() {
    m_ccVisible = !m_ccVisible;
    m_ccRow->setVisible(m_ccVisible);
    m_ccButton->setVisible(!m_ccVisible);
    if (m_ccVisible) m_ccField->setFocus();
}

void ComposeView::onBccToggle() {
    m_bccVisible = !m_bccVisible;
    m_bccRow->setVisible(m_bccVisible);
    m_bccButton->setVisible(!m_bccVisible);
    if (m_bccVisible) m_bccField->setFocus();
}

void ComposeView::onSendClicked() {
    emit sendRequested(
        m_toField->tags2().join(", "),
        m_ccVisible ? m_ccField->tags2().join(", ") : QString(),
        m_bccVisible ? m_bccField->tags2().join(", ") : QString(),
        m_subjectField->text(),
        m_bodyEditor->toHtml(),
        QDateTime(), // null = send now
        m_currentAccountId > 0 ? m_accountCombo->itemData(m_accountCombo->currentIndex()).toString() : QString(),
        m_attachmentFiles
    );
}

void ComposeView::onScheduleClicked() {
    emit sendRequested(
        m_toField->tags2().join(", "),
        m_ccVisible ? m_ccField->tags2().join(", ") : QString(),
        m_bccVisible ? m_bccField->tags2().join(", ") : QString(),
        m_subjectField->text(),
        m_bodyEditor->toHtml(),
        m_schedulePicker->dateTime(),
        m_currentAccountId > 0 ? m_accountCombo->itemData(m_accountCombo->currentIndex()).toString() : QString(),
        m_attachmentFiles
    );
}

void ComposeView::onDetachClicked() {
    emit detachRequested(this);
}

void ComposeView::setTo(const QString &to) { m_toField->tags(to.split(',', Qt::SkipEmptyParts)); }
void ComposeView::setSubject(const QString &subject) { m_subjectField->setText(subject); }
void ComposeView::setBody(const QString &body) { m_bodyEditor->setHtml(body); }

void ComposeView::initializeComposition() {
    m_toField->tags(QStringList{});
    m_ccField->tags(QStringList{});
    m_bccField->tags(QStringList{});
    m_subjectField->clear();
    m_bodyEditor->clear();
    m_attachmentFiles.clear();
    m_attachmentList->clear();
    m_attachmentList->setVisible(false);
    m_ccRow->setVisible(false);
    m_bccRow->setVisible(false);
    m_schedulePanel->setVisible(false);
    m_toField->setFocus();
}

void ComposeView::startNewEmail(const QString &initialRecipient) {
     initializeComposition();
     if (!initialRecipient.isEmpty())
         m_toField->tags(initialRecipient.split(',', Qt::SkipEmptyParts));
     m_toField->setFocus();
 }

 void ComposeView::onAddAttachmentClicked() {
     qDebug() << "Attach button clicked";
     QStringList files = QFileDialog::getOpenFileNames(this, tr("Select Attachments"), QString(), tr("All Files (*)"));
     if (files.isEmpty())
         return;
     for (const QString &file : files) {
         m_attachmentFiles.append(file);
         QListWidgetItem *item = new QListWidgetItem(m_attachmentList);
         item->setData(Qt::UserRole, file);
         QWidget *widget = new QWidget;
         widget->setFixedSize(300, 50);
         widget->setStyleSheet(
             "background-color: #f8f9fa; "
             "border-radius: 8px; "
             "border: 1px solid #e9ecef;"
         );
         QHBoxLayout *layout = new QHBoxLayout(widget);
         layout->setContentsMargins(8, 4, 8, 4);
         layout->setSpacing(8);
         // Icon from system
         QFileIconProvider provider;
         QIcon icon = provider.icon(QFileInfo(file));
         QLabel *iconLabel = new QLabel;
         QPixmap pix = icon.pixmap(32, 32);
         if (pix.isNull())
             pix = QIcon::fromTheme("unknown").pixmap(32,32);
         iconLabel->setPixmap(pix);
         iconLabel->setFixedSize(32,32);
         layout->addWidget(iconLabel);
         // Text vertical layout
         QVBoxLayout *textLayout = new QVBoxLayout;
         textLayout->setSpacing(2);
         QString fileName = QFileInfo(file).fileName();
         QLabel *nameLabel = new QLabel(fileName);
         nameLabel->setStyleSheet("font-weight: bold;");
         QLabel *sizeLabel = new QLabel(tr("%1 KB").arg(QFileInfo(file).size()/1024));
         sizeLabel->setStyleSheet("color: #666; font-size: 10px;");
         textLayout->addWidget(nameLabel);
         textLayout->addWidget(sizeLabel);
         layout->addLayout(textLayout);
         layout->addStretch();
         // Delete button
         QPushButton *delBtn = new QPushButton;
         QIcon delIcon = QIcon::fromTheme("edit-delete");
         if (delIcon.isNull())
             delIcon = QIcon::fromTheme("list-remove");
         if (delIcon.isNull())
             delIcon = QIcon::fromTheme("gtk-delete");
         delBtn->setIcon(delIcon);
         delBtn->setToolTip(tr("Remove attachment"));
         delBtn->setFixedSize(24,24);
         delBtn->setStyleSheet(
             "QPushButton { border: none; background: transparent; }"
             "QPushButton:hover { background: #e9ecef; border-radius: 4px; }"
         );
         layout->addWidget(delBtn);
         // Connect delete button
         connect(delBtn, &QPushButton::clicked, [this, item]() {
             int row = m_attachmentList->row(item);
             if (row >= 0) {
                 QListWidgetItem *it = m_attachmentList->takeItem(row);
                 if (it) {
                     m_attachmentFiles.removeAt(row);
                     delete it;
                 }
                 m_attachmentList->setVisible(!m_attachmentFiles.isEmpty());
             }
         });
         m_attachmentList->addItem(item);
         m_attachmentList->setItemWidget(item, widget);
     }
     m_attachmentList->setVisible(!m_attachmentFiles.isEmpty());
 }

 void ComposeView::onRemoveAttachmentClicked() {
     QListWidgetItem *item = m_attachmentList->currentItem();
     if (!item)
         return;
     int row = m_attachmentList->row(item);
     m_attachmentList->takeItem(row);
     m_attachmentFiles.removeAt(row);
     delete item;
     m_attachmentList->setVisible(!m_attachmentFiles.isEmpty());
 }

 void ComposeView::onTemplateClicked() {
     // Placeholder for template functionality
     QMessageBox::information(this, tr("Email Templates"), tr("Email templates feature not yet implemented."));
 }

 #include "composeview.moc"