# -*- coding: utf-8 -*-

"""
***************************************************************************
    ResultsDialog.py
    ---------------------
    Date                 : August 2012
    Copyright            : (C) 2012 by Victor Olaya
    Email                : volayaf at gmail dot com
***************************************************************************
*                                                                         *
*   This program is free software; you can redistribute it and/or modify  *
*   it under the terms of the GNU General Public License as published by  *
*   the Free Software Foundation; either version 2 of the License, or     *
*   (at your option) any later version.                                   *
*                                                                         *
***************************************************************************
"""

__author__ = 'Victor Olaya'
__date__ = 'August 2012'
__copyright__ = '(C) 2012, Victor Olaya'

# This will get replaced with a git SHA1 when you do a git archive

__revision__ = '$Format:%H$'

import os
import codecs

from qgis.PyQt import uic
from qgis.PyQt.QtCore import QUrl
from qgis.PyQt.QtGui import QIcon
from qgis.PyQt.QtWidgets import QStyle, QTreeWidgetItem

from processing.core.ProcessingResults import ProcessingResults

pluginPath = os.path.split(os.path.dirname(__file__))[0]
WIDGET, BASE = uic.loadUiType(
    os.path.join(pluginPath, 'ui', 'DlgResults.ui'))


class ResultsDialog(BASE, WIDGET):

    def __init__(self):
        super(ResultsDialog, self).__init__(None)
        self.setupUi(self)

        self.keyIcon = QIcon()
        self.keyIcon.addPixmap(self.style().standardPixmap(QStyle.SP_FileIcon))

        self.tree.itemClicked.connect(self.changeResult)

        self.fillTree()

        if self.lastUrl:
            self.txtResults.setHtml(self.loadResults(self.lastUrl))

    def fillTree(self):
        elements = ProcessingResults.getResults()
        if len(elements) == 0:
            self.lastUrl = None
            return
        for element in elements:
            item = TreeResultItem(element)
            item.setIcon(0, self.keyIcon)
            self.tree.addTopLevelItem(item)
        self.lastUrl = elements[-1].filename

    def changeResult(self):
        item = self.tree.currentItem()
        if isinstance(item, TreeResultItem):
            self.txtResults.setHtml(self.loadResults(item.filename))

    def loadResults(self, fileName):
        with codecs.open(fileName, encoding='utf-8') as f:
            content = f.read()
        return content


class TreeResultItem(QTreeWidgetItem):

    def __init__(self, result):
        QTreeWidgetItem.__init__(self)
        self.filename = result.filename
        self.setText(0, result.name)