#include "replaceclipmediadialog.h"

#include "ui/sourcetable.h"
#include "panels/panels.h"
#include "panels/timeline.h"
#include "panels/project.h"
#include "project/sequence.h"
#include "project/clip.h"
#include "playback/playback.h"
#include "playback/cacher.h"
#include "project/footage.h"
#include "project/undo.h"
#include "project/media.h"

#include <QVBoxLayout>
#include <QTreeView>
#include <QLabel>
#include <QPushButton>
#include <QMessageBox>
#include <QCheckBox>

ReplaceClipMediaDialog::ReplaceClipMediaDialog(QWidget *parent, SourceTable *table, Media *old_media) :
	QDialog(parent),
	source_table(table),
	media(old_media)
{
	resize(300, 400);

	QVBoxLayout* layout = new QVBoxLayout();

	layout->addWidget(new QLabel("Select which media you want to replace this media's clips with:"));

    tree = new QTreeView();

	layout->addWidget(tree);

    use_same_media_in_points = new QCheckBox("Keep the same media in-points");
	use_same_media_in_points->setChecked(true);
	layout->addWidget(use_same_media_in_points);

	QHBoxLayout* buttons = new QHBoxLayout();

	buttons->addStretch();

	QPushButton* replace_button = new QPushButton("Replace");
	connect(replace_button, SIGNAL(clicked(bool)), this, SLOT(replace()));
	buttons->addWidget(replace_button);

	QPushButton* cancel_button = new QPushButton("Cancel");
	connect(cancel_button, SIGNAL(clicked(bool)), this, SLOT(close()));
	buttons->addWidget(cancel_button);

	buttons->addStretch();

	layout->addLayout(buttons);

	setLayout(layout);

    tree->setModel(&project_model);

    //copy_tree(NULL, NULL);
}

void ReplaceClipMediaDialog::replace() {
    QModelIndexList selected_items = tree->selectionModel()->selectedRows();
    if (selected_items.size() != 1) {
		QMessageBox::critical(this, "No media selected", "Please select a media to replace with or click 'Cancel'.", QMessageBox::Ok);
	} else {
        Media* new_item = static_cast<Media*>(selected_items.at(0).internalPointer());
		if (media == new_item) {
			QMessageBox::critical(this, "Same media selected", "You selected the same media that you're replacing. Please select a different one or click 'Cancel'.", QMessageBox::Ok);
        } else if (new_item->get_type() == MEDIA_TYPE_FOLDER) {
			QMessageBox::critical(this, "Folder selected", "You cannot replace footage with a folder.", QMessageBox::Ok);
		} else {
            if (new_item->get_type() == MEDIA_TYPE_SEQUENCE && sequence == new_item->to_sequence()) {
				QMessageBox::critical(this, "Active sequence selected", "You cannot insert a sequence into itself.", QMessageBox::Ok);
            } else {
				ReplaceClipMediaCommand* rcmc = new ReplaceClipMediaCommand(
                            media,
                            new_item,
							use_same_media_in_points->isChecked()
						);

                for (int i=0;i<sequence->clips.size();i++) {
                    Clip* c = sequence->clips.at(i);
                    if (c != NULL && c->media == media) {
						rcmc->clips.append(c);
					}
				}

				undo_stack.push(rcmc);

				close();
			}

		}
	}
}