# Trivial Bazaar plugin for Nautilus
#
# Copyright (C) 2006 Jeff Bailey
# Copyright (C) 2006 Wouter van Heyst
# Copyright (C) 2006 Jelmer Vernooij
#
# Published under the GNU GPL

import nautilus
import bzrlib
from bzrlib.bzrdir import BzrDir
from bzrlib.errors import NotBranchError
from bzrlib.workingtree import WorkingTree
from bzrlib.tree import file_status

from bzrlib.plugin import load_plugins
load_plugins()

from bzrlib.plugins.gtk import cmd_visualise, cmd_gannotate

class BzrExtension(nautilus.MenuProvider, nautilus.ColumnProvider, nautilus.InfoProvider):
    def __init__(self):
        pass

    def add_cb(self, menu, vfs_file):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            return

        tree.add(path)

        return

    def ignore_cb(self, menu, vfs_file):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            return

        #FIXME

        return

    def unignore_cb(self, menu, vfs_file):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            return

        #FIXME

        return

    def diff_cb(self, menu, vfs_file):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            return

        from bzrlib.plugins.gtk.viz.diff import DiffWindow
        window = DiffWindow()
        window.set_diff(tree.branch.nick, tree, tree.branch.basis_tree())
        window.show()

        return

    def newtree_cb(self, menu, vfs_file):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()

        # We only want to continue here if we get a NotBranchError
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            BzrDir.create_branch_and_repo(file)

    def remove_cb(self, menu, vfs_file):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            return

        tree.remove(path)

    def annotate_cb(self, menu, vfs_file):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()

        vis = cmd_gannotate()
        vis.run(file)

    def clone_cb(self, menu, vfs_file=None):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        from bzrlib.plugins.gtk.branch import BranchDialog
        
        dialog = BranchDialog(vfs_file.get_name())
        dialog.display()
 
    def commit_cb(self, menu, vfs_file=None):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            return

        from bzrlib.plugins.gtk.commit import CommitDialog
        dialog = CommitDialog(tree, path)
        dialog.display()
        gtk.main()

    def log_cb(self, menu, vfs_file):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()

        # We only want to continue here if we get a NotBranchError
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            return

        vis = cmd_visualise()
        vis.run(file)

        return

    def pull_cb(self, menu, vfs_file):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()

        # We only want to continue here if we get a NotBranchError
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            return

        from bzrlib.plugins.gtk.pull import PullDialog
        dialog = PullDialog(tree, path)
        dialog.display()
        gtk.main()

    def merge_cb(self, menu, vfs_file):
        # We can only cope with local files
        if vfs_file.get_uri_scheme() != 'file':
            return

        file = vfs_file.get_uri()

        # We only want to continue here if we get a NotBranchError
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            return

        from bzrlib.plugins.gtk.merge import MergeDialog
        dialog = MergeDialog(tree, path)
        dialog.display()
        gtk.main()

    def get_background_items(self, window, vfs_file):
        items = []
        file = vfs_file.get_uri()
        try:
            tree, path = WorkingTree.open_containing(file)
        except NotBranchError:
            item = nautilus.MenuItem('BzrNautilus::newtree',
                                 'Make directory versioned',
                                 'Create new Bazaar tree in this folder')
            item.connect('activate', self.newtree_cb, vfs_file)
            items.append(item)

            item = nautilus.MenuItem('BzrNautilus::clone',
                                 'Checkout Bazaar branch',
                                 'Checkout Existing Bazaar Branch')
            item.connect('activate', self.clone_cb, vfs_file)
            items.append(item)

            return items

        item = nautilus.MenuItem('BzrNautilus::log',
                             'Log',
                             'Show Bazaar history')
        item.connect('activate', self.log_cb, vfs_file)
        items.append(item)

        item = nautilus.MenuItem('BzrNautilus::pull',
                             'Pull',
                             'Pull from another branch')
        item.connect('activate', self.pull_cb, vfs_file)
        items.append(item)

        item = nautilus.MenuItem('BzrNautilus::merge',
                             'Merge',
                             'Merge from another branch')
        item.connect('activate', self.merge_cb, vfs_file)
        items.append(item)

        item = nautilus.MenuItem('BzrNautilus::commit',
                             'Commit',
                             'Commit Changes')
        item.connect('activate', self.commit_cb, vfs_file)
        items.append(item)

        return items


    def get_file_items(self, window, files):
        items = []

        for vfs_file in files:
            # We can only cope with local files
            if vfs_file.get_uri_scheme() != 'file':
                return

            file = vfs_file.get_uri()
            try:
                tree, path = WorkingTree.open_containing(file)
            except NotBranchError:
                if not vfs_file.is_directory():
                    return
                item = nautilus.MenuItem('BzrNautilus::newtree',
                                     'Make directory versioned',
                                     'Create new Bazaar tree in %s' % vfs_file.get_name())
                item.connect('activate', self.newtree_cb, vfs_file)
                return item,

            file_class = tree.file_class(path)

            if file_class == '?':
                item = nautilus.MenuItem('BzrNautilus::add',
                                     'Add',
                                     'Add as versioned file')
                item.connect('activate', self.add_cb, vfs_file)
                items.append(item)

                item = nautilus.MenuItem('BzrNautilus::ignore',
                                     'Ignore',
                                     'Ignore file for versioning')
                item.connect('activate', self.ignore_cb, vfs_file)
                items.append(item)
            elif file_class == 'I':
                item = nautilus.MenuItem('BzrNautilus::unignore',
                                     'Unignore',
                                     'Unignore file for versioning')
                item.connect('activate', self.unignore_cb, vfs_file)
                items.append(item)
            elif file_class == 'V':
                item = nautilus.MenuItem('BzrNautilus::log',
                                 'Log',
                                 'List changes')
                item.connect('activate', self.log_cb, vfs_file)
                items.append(item)

                item = nautilus.MenuItem('BzrNautilus::diff',
                                 'Diff',
                                 'Show differences')
                item.connect('activate', self.diff_cb, vfs_file)
                items.append(item)

                item = nautilus.MenuItem('BzrNautilus::remove',
                                     'Remove',
                                     'Remove this file from versioning')
                item.connect('activate', self.remove_cb, vfs_file)
                items.append(item)

                item = nautilus.MenuItem('BzrNautilus::annotate',
                             'Annotate',
                             'Annotate File Data')
                item.connect('activate', self.annotate_cb, vfs_file)
                items.append(item)

                item = nautilus.MenuItem('BzrNautilus::commit',
                             'Commit',
                             'Commit Changes')
                item.connect('activate', self.commit_cb, vfs_file)
                items.append(item)

        return items

    def get_columns(self):
        return nautilus.Column("BzrNautilus::bzr_status",
                               "bzr_status",
                               "Bzr Status",
                               "Version control status"),

    def update_file_info(self, file):
        if file.get_uri_scheme() != 'file':
            return
        
        try:
            tree, path = WorkingTree.open_containing(file.get_uri())
        except NotBranchError:
            return

        emblem = None
        status = None

        if tree.has_filename(path):
            emblem = 'cvs-controlled'
            status = 'unchanged'
            id = tree.path2id(path)

            delta = tree.changes_from(tree.branch.basis_tree())
            if delta.touches_file_id(id):
                emblem = 'cvs-modified'
                status = 'modified'
            for f, _, _ in delta.added:
                if f == path:
                    emblem = 'cvs-added'
                    status = 'added'

            for of, f, _, _, _, _ in delta.renamed:
                if f == path:
                    status = 'renamed from %s' % f

        elif tree.branch.basis_tree().has_filename(path):
            emblem = 'cvs-removed'
            status = 'removed'
        else:
            # FIXME: Check for ignored files
            status = 'unversioned'
        
        if emblem is not None:
            file.add_emblem(emblem)
        file.add_string_attribute('bzr_status', status)