#include "managepostwidget.h"

#include <QHBoxLayout>
#include <QImage>
#include <QLabel>
#include <QPixmap>
#include <QPushButton>
#include <QVBoxLayout>

namespace {
constexpr int kThumbSize = 72;
}

ManagePostWidget::ManagePostWidget(const QString &slug, const QString &caption,
                                   const QString &date, const QStringList &tags,
                                   const QString &url, QWidget *parent)
    : QWidget(parent)
    , m_slug(slug)
    , m_caption(caption)
    , m_date(date)
    , m_tags(tags)
    , m_url(url)
{
    auto *row = new QHBoxLayout(this);
    row->setContentsMargins(0, 4, 0, 4);

    m_thumb = new QLabel;
    m_thumb->setFixedSize(kThumbSize, kThumbSize);
    m_thumb->setAlignment(Qt::AlignCenter);
    m_thumb->setFrameShape(QFrame::Box);
    row->addWidget(m_thumb, 0, Qt::AlignTop);

    auto *fields = new QVBoxLayout;
    m_captionLabel = new QLabel;
    m_captionLabel->setTextFormat(Qt::RichText);
    m_captionLabel->setOpenExternalLinks(true);
    m_captionLabel->setWordWrap(true);
    fields->addWidget(m_captionLabel);

    m_metaLabel = new QLabel;
    m_metaLabel->setWordWrap(true);
    m_metaLabel->setStyleSheet(QStringLiteral("color:#a89984;"));
    fields->addWidget(m_metaLabel);
    row->addLayout(fields, 1);

    m_edit = new QPushButton(QStringLiteral("Edit"));
    connect(m_edit, &QPushButton::clicked, this, [this]() { emit editRequested(this); });
    row->addWidget(m_edit, 0, Qt::AlignTop);

    m_delete = new QPushButton(QStringLiteral("Delete"));
    connect(m_delete, &QPushButton::clicked, this, [this]() { emit deleteRequested(this); });
    row->addWidget(m_delete, 0, Qt::AlignTop);

    refreshSummary();
}

void ManagePostWidget::setThumbnail(const QImage &image)
{
    if (image.isNull()) {
        m_thumb->setText(QStringLiteral("?"));
        return;
    }
    m_thumb->setPixmap(QPixmap::fromImage(image).scaled(
        kThumbSize, kThumbSize, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation));
}

void ManagePostWidget::applyEdit(const QString &caption, const QString &date,
                                 const QStringList &tags)
{
    m_caption = caption;
    m_date = date;
    m_tags = tags;
    refreshSummary();
}

void ManagePostWidget::setBusy(bool busy)
{
    m_edit->setEnabled(!busy);
    m_delete->setEnabled(!busy);
}

void ManagePostWidget::refreshSummary()
{
    const QString shown = m_caption.isEmpty() ? m_slug : m_caption;
    m_captionLabel->setText(
        QStringLiteral("<a href=\"%1\">%2</a>").arg(m_url, shown.toHtmlEscaped()));

    QString meta = m_date;
    if (!m_tags.isEmpty())
        meta += QStringLiteral("  ·  ") + m_tags.join(QStringLiteral(", "));
    m_metaLabel->setText(meta);
}