#!/usr/bin/env python
# -*- coding: utf-8 -*-

#***************************************************************************
#*                                                                         *
#*   Copyright (c) 2013 Yorik van Havre <[email protected]>              *
#*                                                                         *
#*   This program is free software; you can redistribute it and/or modify  *
#*   it under the terms of the GNU Lesser General Public License (LGPL)    *
#*   as published by the Free Software Foundation; either version 2 of     *
#*   the License, or (at your option) any later version.                   *
#*   for detail see the LICENCE text file.                                 *
#*                                                                         *
#*   This program is distributed in the hope that it will be useful,       *
#*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
#*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
#*   GNU Library General Public License for more details.                  *
#*                                                                         *
#*   You should have received a copy of the GNU Library General Public     *
#*   License along with this program; if not, write to the Free Software   *
#*   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
#*   USA                                                                   *
#*                                                                         *
#***************************************************************************
from __future__ import print_function

__title__="FreeCAD Parts Library Macro"
__author__ = "Yorik van Havre"
__url__ = "http://www.freecadweb.org"

'''
FreeCAD Parts Library import macro

INSTALLATION

This script is made to be used as a FreeCAD macro, and to be placed
inside your macros folder (default is $HOME/.FreeCAD on mac/linux,
C:/Users/youruser/Application Data/FreeCAD on windows).

After it is installed on the above location, it will be available
in the macros menu. On first run, it will ask you for the location
of your library.

USAGE

This macro adds a browser window to the FreeCAD interface, from
which you can browse and install items from the library.

ADVANCED USE

The update, config, and push buttons all rely on git, and need the
python-git package installed. Once that is done, and provided the
library is a git repository (ie. you cloned it with git instead of
just downloading it), the above mentioned buttons will be enabled.

The "update" button will simply update your local library with the
latest contents from the online repository.

CONTRIBUTING

When cloning the official FreeCAD Parts library, you will usually
not have write permission to it, and therefore cannot push to it.

The best way to proceed is, instead of cloning the FreeCAD library
directly, to fork it first (for example using the github "fork"
button), then clone that foked repo instead, where you will have
the correct permissions.

Once you pushed some contents there, you can make a pull request on
the official repo to have it merged.

If you create a folder named Private in your library, it won't be
considered when pushing, so you can place private Parts there.
'''


import sys, FreeCAD, FreeCADGui, Part, zipfile, tempfile, Mesh, os, subprocess
from PySide import QtGui, QtCore

param = FreeCAD.ParamGet('User parameter:Plugins/parts_library')
s = param.GetString('destination')
#print('User parameter:Plugins/partlib : destination : ',s)

#encoding error trap
_encoding = None

try:
    _encoding = QtGui.QApplication.UnicodeUTF8
except AttributeError:
    _encoding = -1

if s:
    LIBRARYPATH = s
else:

    folderDialog = QtGui.QFileDialog.getExistingDirectory(None,QtGui.QApplication.translate("PartsLibrary", "Location of your existing Parts library", None, _encoding))
    param.SetString('destination',folderDialog)
    LIBRARYPATH = param.GetString('destination')


def translate(context, text, utf8_decode = _encoding):

    #added compare to ensure utf8 encoding is skipped if not available
    return QtGui.QApplication.translate(context, text, None, utf8_decode & _encoding)

class ExpFileSystemModel(QtGui.QFileSystemModel):
    "a custom QFileSystemModel that displays freecad file icons"
    def __init__(self):
        QtGui.QFileSystemModel.__init__(self)

    def data(self, index, role):
        if index.column() == 0 and role == QtCore.Qt.DecorationRole:
            if index.data().lower().endswith('.fcstd'):
                return QtGui.QIcon(':icons/freecad-doc.png')
            elif index.data().lower() == "private":
                return QtGui.QIcon.fromTheme("folder-lock")
        return super(ExpFileSystemModel, self).data(index, role)

class ExpDockWidget(QtGui.QDockWidget):
    "a library explorer dock widget"

    def __init__(self,LIBRARYPATH):
        QtGui.QDockWidget.__init__(self)

        self.setObjectName("PartsLibrary")

        # setting up a directory model that shows only fcstd, step and brep
        self.dirmodel = ExpFileSystemModel()
        self.dirmodel.setRootPath(LIBRARYPATH)
        self.dirmodel.setNameFilters(["*.fcstd","*.FcStd","*.FCSTD","*.stp","*.STP","*.step","*.STEP", "*.brp", "*.BRP", "*.brep", "*.BREP"])
        self.dirmodel.setNameFilterDisables(0)

        self.folder = QtGui.QTreeView()
        self.folder.setModel(self.dirmodel)
        self.folder.clicked[QtCore.QModelIndex].connect(self.clicked)
        self.folder.doubleClicked[QtCore.QModelIndex].connect(self.doubleclicked)
        # Don't show columns for size, file type, and last modified
        self.folder.setHeaderHidden(True)
        self.folder.hideColumn(1)
        self.folder.hideColumn(2)
        self.folder.hideColumn(3)
        self.folder.setRootIndex(self.dirmodel.index(LIBRARYPATH))
        
        self.preview = QtGui.QLabel()
        self.preview.setFixedHeight(128)
        
        self.updatebutton = QtGui.QPushButton()
        icon = QtGui.QIcon.fromTheme("emblem-synchronizing")
        self.updatebutton.setIcon(icon)
        self.updatebutton.clicked.connect(self.updatelibrary)
        self.updatebutton.hide()
        
        self.configbutton = QtGui.QPushButton()
        icon = QtGui.QIcon.fromTheme("emblem-system")
        self.configbutton.setIcon(icon)
        self.configbutton.clicked.connect(self.setconfig)
        self.configbutton.hide()
        
        self.formatLabel = QtGui.QLabel()
        self.formatLabel.hide()
        
        self.savebutton = QtGui.QPushButton()
        icon = QtGui.QIcon.fromTheme("document-save")
        self.savebutton.setIcon(icon)
        self.savebutton.clicked.connect(self.addtolibrary)
        self.savebutton.hide()
        
        self.pushbutton = QtGui.QPushButton()
        icon = QtGui.QIcon.fromTheme("document-export")
        self.pushbutton.setIcon(icon)
        self.pushbutton.clicked.connect(self.pushlibrary)
        self.pushbutton.hide()
        
        self.prevbutton = QtGui.QPushButton()
        self.prevbutton.clicked.connect(self.showpreview)
        self.prevbutton.setStyleSheet("text-align: left;")
        
        self.optbutton = QtGui.QPushButton()
        self.optbutton.clicked.connect(self.showoptions)
        self.optbutton.setStyleSheet("text-align: left;")
        
        self.fcstdCB = QtGui.QCheckBox('FCStd')
        self.fcstdCB.setCheckState(QtCore.Qt.Checked)
        self.fcstdCB.setEnabled(False)
        self.fcstdCB.hide()
        self.stepCB = QtGui.QCheckBox('STEP')
        self.stepCB.setCheckState(QtCore.Qt.Checked)
        self.stepCB.hide()
        self.stlCB = QtGui.QCheckBox('STL')
        self.stlCB.setCheckState(QtCore.Qt.Checked)
        self.stlCB.hide()

        container = QtGui.QWidget()
        grid = QtGui.QGridLayout()
        grid.setSpacing(10)

        grid.addWidget(self.folder,0,0,1,2)
        grid.addWidget(self.prevbutton,1,0,1,2)
        grid.addWidget(self.preview,2,0,1,2)
        grid.addWidget(self.optbutton,3,0,1,2)
        
        grid.addWidget(self.updatebutton,4,0,1,1)
        grid.addWidget(self.configbutton,4,1,1,1)
        grid.addWidget(self.formatLabel,5,0,1,2)
        grid.addWidget(self.fcstdCB,6,0,1,2)
        grid.addWidget(self.stepCB,7,0,1,2)
        grid.addWidget(self.stlCB,8,0,1,2)
        grid.addWidget(self.savebutton,9,0,1,1)
        grid.addWidget(self.pushbutton,9,1,1,1)
        
        global repo
        repo = None
        try:
            import git
        except:
            FreeCAD.Console.PrintWarning("python-git not found. Git-related functions will be disabled\n")
        else:
            try:
                repo = git.Repo(LIBRARYPATH)
            except:
                FreeCAD.Console.PrintWarning("Your library is not a valid Git repository. Git-related functions will be disabled\n")
            else:
                if not repo.remotes:
                    FreeCAD.Console.PrintWarning("No remote repository set. Git-related functions will be disabled\n")
                    repo = None
        if not repo:
            self.updatebutton.setEnabled(False)
            #self.configbutton.setEnabled(False)
            self.pushbutton.setEnabled(False)
            
        self.retranslateUi()
        container.setLayout(grid)
        self.setWidget(container)
        
    def retranslateUi(self):
        self.setWindowTitle(translate("PartsLibrary", "Parts Library"))
        self.updatebutton.setText(translate("PartsLibrary", "Update from Git"))
        self.configbutton.setText(translate("PartsLibrary", "Config"))
        self.formatLabel.setText(translate("PartsLibrary", "Add to library"))
        self.savebutton.setText(translate("PartsLibrary", "Save"))
        self.pushbutton.setText(translate("PartsLibrary", "Push to Git"))
        self.optbutton.setText(translate("PartsLibrary", "Options ⏷"))
        self.prevbutton.setText(translate("PartsLibrary", "Preview ⏶"))

    def clicked(self, index):
        path = self.dirmodel.filePath(index)
        if path.lower().endswith(".fcstd"):
            zfile=zipfile.ZipFile(path)
            files=zfile.namelist()
            # check for meta-file if it's really a FreeCAD document
            if files[0] == "Document.xml":
                image="thumbnails/Thumbnail.png"
                if image in files:
                    image=zfile.read(image)
                    thumbfile = tempfile.mkstemp(suffix='.png')[1]
                    thumb = open(thumbfile,"wb")
                    thumb.write(image)
                    thumb.close()
                    im = QtGui.QPixmap(thumbfile)
                    self.preview.setPixmap(im)
                    return
        self.preview.clear()

    def doubleclicked(self, index):
        path = self.dirmodel.filePath(index)
        if path.lower().endswith(".stp") or path.lower().endswith(".step") or path.lower().endswith(".brp") or path.lower().endswith(".brep"):
            Part.show(Part.read(path))
        elif path.lower().endswith(".fcstd"):
            FreeCADGui.ActiveDocument.mergeProject(path)
        FreeCADGui.SendMsgToActiveView("ViewFit")

    def addtolibrary(self):
        fileDialog = QtGui.QFileDialog.getSaveFileName(None,u"Choose category and set a filename without extension", LIBRARYPATH)
        if fileDialog != '':
            #filename = fileDialog[0].split("/")[-1]
            #if filename.split(".")[-1].lowercase == "fcstd" or "stl
            FCfilename = fileDialog[0] + ".fcstd"
            FreeCAD.ActiveDocument.saveCopy(FCfilename)
            if self.stepCB.isChecked() or self.stlCB.isChecked():
                toexport = []
                objs = FreeCAD.ActiveDocument.Objects
                for obj in objs :
                    if obj.ViewObject.Visibility == True :
                        toexport.append(obj)
                if self.stepCB.isChecked() :
                    STEPfilename = fileDialog[0] + ".step"
                    Part.export(toexport,STEPfilename)
                if self.stlCB.isChecked() :
                    STLfilename = fileDialog[0] + ".stl"
                    Mesh.export(toexport,STLfilename)
                    
    def pushlibrary(self):
        modified_files = [f for f in repo.git.diff("--name-only").split("\n") if (f and (f != 'PartsLibrary.FCMacro'))]
        #print(modified_files)
        untracked_files = [f for f in repo.git.ls_files("--other","--exclude-standard").split("\n") if f]
        #print(untracked_files)
        import ArchServer
        d = ArchServer._ArchGitDialog()
        d.label.setText(str(len(modified_files)+len(untracked_files))+" new and modified file(s)")
        d.lineEdit.setText("Changed " + str(modified_files))
        d.checkBox.hide()
        d.radioButton.hide()
        d.radioButton_2.hide()
        r = d.exec_()
        if r:
            for o in modified_files + untracked_files:
                repo.git.add(o)
            repo.git.commit(m=d.lineEdit.text())
            if d.checkBox.isChecked():
                repo.git.push()
                
    def updatelibrary(self):
        repo.git.pull()
        
    def setconfig(self):
        d = ConfigDialog()
        if repo:
            d.lineEdit.setText(repo.remote().url)
            if hasattr(repo.remote(),"pushurl"):
                d.lineEdit_2.setText(repo.remote().pushurl)
            else:
                d.lineEdit_2.setText(repo.remote().url)
        else:
            d.groupBox.setEnabled(False)
            d.groupBox_2.setEnabled(False)
        r = d.exec_()
        
    def showoptions(self):
        controls = [self.updatebutton,self.configbutton,self.formatLabel,
                    self.fcstdCB,self.stepCB,self.stlCB,self.savebutton,self.pushbutton]
        tree = [self.preview]
        if self.updatebutton.isVisible():
            for c in controls:
                c.hide()
            for c in tree:
                c.show()
            self.optbutton.setText(QtGui.QApplication.translate("PartsLibrary", "Options ⏷", None, _encoding))
        else:
            for c in controls:
                c.show()
            for c in tree:
                c.hide()
            self.optbutton.setText(QtGui.QApplication.translate("PartsLibrary", "Options ⏶", None, _encoding))

    def showpreview(self):
        if self.preview.isVisible():
            self.preview.hide()
            self.prevbutton.setText(QtGui.QApplication.translate("PartsLibrary", "Preview ⏷", None, _encoding))
        else:
            self.preview.show()
            self.prevbutton.setText(QtGui.QApplication.translate("PartsLibrary", "Preview ⏶", None, _encoding))



class ConfigDialog(QtGui.QDialog):
    def __init__(self):
        QtGui.QDialog.__init__(self)
        self.setObjectName("GitConfig")
        self.resize(420, 250)
        self.verticalLayout = QtGui.QVBoxLayout(self)
        self.verticalLayout.setObjectName("verticalLayout")
        
        self.groupBox_3 = QtGui.QGroupBox(self)
        self.groupBox_3.setObjectName("groupBox_3")
        self.horizontalLayout_3 = QtGui.QHBoxLayout(self.groupBox_3)
        self.horizontalLayout_3.setObjectName("horizontalLayout_3")
        self.lineEdit_3 = QtGui.QLineEdit(self.groupBox_3)
        self.lineEdit_3.setObjectName("lineEdit_3")
        self.horizontalLayout_3.addWidget(self.lineEdit_3)
        self.pushButton_3 = QtGui.QPushButton(self.groupBox_3)
        self.pushButton_3.setObjectName("pushButton_3")
        self.horizontalLayout_3.addWidget(self.pushButton_3)
        self.verticalLayout.addWidget(self.groupBox_3)
        
        self.groupBox = QtGui.QGroupBox(self)
        self.groupBox.setObjectName("groupBox")
        self.horizontalLayout = QtGui.QHBoxLayout(self.groupBox)
        self.horizontalLayout.setObjectName("horizontalLayout")
        self.lineEdit = QtGui.QLineEdit(self.groupBox)
        self.lineEdit.setObjectName("lineEdit")
        self.horizontalLayout.addWidget(self.lineEdit)
        self.pushButton = QtGui.QPushButton(self.groupBox)
        self.pushButton.setObjectName("pushButton")
        self.horizontalLayout.addWidget(self.pushButton)
        self.verticalLayout.addWidget(self.groupBox)
        
        self.groupBox_2 = QtGui.QGroupBox(self)
        self.groupBox_2.setObjectName("groupBox_2")
        self.verticalLayout_2 = QtGui.QVBoxLayout(self.groupBox_2)
        self.verticalLayout_2.setObjectName("verticalLayout_2")
        self.lineEdit_2 = QtGui.QLineEdit(self.groupBox_2)
        self.lineEdit_2.setObjectName("lineEdit_2")
        self.verticalLayout_2.addWidget(self.lineEdit_2)
        self.label = QtGui.QLabel(self.groupBox_2)
        self.label.setObjectName("label")
        self.verticalLayout_2.addWidget(self.label)
        self.verticalLayout.addWidget(self.groupBox_2)
        
        self.buttonBox = QtGui.QDialogButtonBox(self)
        self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
        self.buttonBox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok)
        self.buttonBox.setObjectName("buttonBox")
        self.verticalLayout.addWidget(self.buttonBox)

        self.retranslateUi()
        QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL("accepted()"), self.accept)
        QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL("rejected()"), self.reject)
        QtCore.QObject.connect(self.pushButton, QtCore.SIGNAL("clicked()"), self.setdefaulturl)
        QtCore.QObject.connect(self.pushButton_3, QtCore.SIGNAL("clicked()"), self.changepath)
        QtCore.QMetaObject.connectSlotsByName(self)
        
        librarypath = FreeCAD.ParamGet('User parameter:Plugins/parts_library').GetString('destination','')
        self.lineEdit_3.setText(librarypath)

    def retranslateUi(self):
        self.setWindowTitle(QtGui.QApplication.translate("PartsLibrary", "Parts library configuration", None, _encoding))
        self.groupBox.setTitle(QtGui.QApplication.translate("PartsLibrary", "Pull server (where you get your updates from)", None, _encoding))
        self.lineEdit.setToolTip(QtGui.QApplication.translate("PartsLibrary", "Enter the URL of the pull server here", None, _encoding))
        self.pushButton.setToolTip(QtGui.QApplication.translate("PartsLibrary", "Use the official FreeCAD-library repository", None, _encoding))
        self.pushButton.setText(QtGui.QApplication.translate("PartsLibrary", "use official", None, _encoding))
        self.groupBox_2.setTitle(QtGui.QApplication.translate("PartsLibrary", "Push server (where you push your changes to)", None, _encoding))
        self.lineEdit_2.setToolTip(QtGui.QApplication.translate("PartsLibrary", "Enter the URL of the push server here", None, _encoding))
        self.label.setText(QtGui.QApplication.translate("PartsLibrary", "Warning: You need write permission on this server", None, _encoding))
        self.groupBox_3.setTitle(QtGui.QApplication.translate("PartsLibrary", "Library path", None, _encoding))
        self.lineEdit_3.setToolTip(QtGui.QApplication.translate("PartsLibrary", "Enter the path to your parts library", None, _encoding))
        self.pushButton_3.setToolTip(QtGui.QApplication.translate("PartsLibrary", "Browse to your path library", None, _encoding))
        self.pushButton_3.setText(QtGui.QApplication.translate("PartsLibrary", "...", None, _encoding))

    def setdefaulturl(self):
        self.lineEdit.setText("https://github.com/FreeCAD/FreeCAD-library.git")
        
    def changepath(self):
        librarypath = FreeCAD.ParamGet('User parameter:Plugins/parts_library').GetString('destination','')
        np = QtGui.QFileDialog.getExistingDirectory(self,"Location of your existing Parts library",librarypath)
        if np:
            self.lineEdit_3.setText(np)

    def accept(self):
        if repo:
            cw = repo.remote().config_writer
            if self.lineEdit.text():
                cw.set("url", str(self.lineEdit.text()))
            if self.lineEdit_2.text():
                cw.set("pushurl", str(self.lineEdit_2.text()))
            if hasattr(cw,"release"):
                cw.release()
        if self.lineEdit_3.text():
            FreeCAD.ParamGet('User parameter:Plugins/parts_library').SetString('destination',self.lineEdit_3.text())
        QtGui.QDialog.accept(self)

if QtCore.QDir(LIBRARYPATH).exists():
    m = FreeCADGui.getMainWindow()
    w = m.findChild(QtGui.QDockWidget,"PartsLibrary")
    if w:
        if hasattr(w,"isVisible"):
            if w.isVisible():
                w.hide()
            else:
                w.show()
        else:
            # something went wrong with our widget... Recreate it
            del w
            m.addDockWidget(QtCore.Qt.RightDockWidgetArea,ExpDockWidget(LIBRARYPATH))
    else:
        m.addDockWidget(QtCore.Qt.RightDockWidgetArea,ExpDockWidget(LIBRARYPATH))
else:
    print("Library path ", LIBRARYPATH, "not found.")