# This is a sample commands.py.  You can add your own commands here.
#
# Please refer to commands_full.py for all the default commands and a complete
# documentation.  Do NOT add them all here, or you may end up with defunct
# commands when upgrading ranger.

# You always need to import ranger.api.commands here to get the Command class:
from ranger.api.commands import *

# A simple command for demonstration purposes follows.
# -----------------------------------------------------------------------------

# You can import any python module as needed.
import os

# Any class that is a subclass of "Command" will be integrated into ranger as a
# command.  Try typing ":my_edit<ENTER>" in ranger!


class my_edit(Command):
    # The so-called doc-string of the class will be visible in the built-in
    # help that is accessible by typing "?c" inside ranger.
    """:my_edit <filename>

    A sample command for demonstration purposes that opens a file in an editor.
    """

    # The execute method is called when you run this command in ranger.
    def execute(self):
        # self.arg(1) is the first (space-separated) argument to the function.
        # This way you can write ":my_edit somefilename<ENTER>".
        if self.arg(1):
            # self.rest(1) contains self.arg(1) and everything that follows
            target_filename = self.rest(1)
        else:
            # self.fm is a ranger.core.filemanager.FileManager object and gives
            # you access to internals of ranger.
            # self.fm.thisfile is a ranger.container.file.File object and is a
            # reference to the currently selected file.
            target_filename = self.fm.thisfile.path

        # This is a generic function to print text in ranger.
        self.fm.notify("Let's edit the file " + target_filename + "!")

        # Using bad=True in fm.notify allows you to print error messages:
        if not os.path.exists(target_filename):
            self.fm.notify("The given file does not exist!", bad=True)
            return

        # This executes a function from ranger.core.acitons, a module with a
        # variety of subroutines that can help you construct commands.
        # Check out the source, or run "pydoc ranger.core.actions" for a list.
        self.fm.edit_file(target_filename)

    # The tab method is called when you press tab, and should return a list of
    # suggestions that the user will tab through.
    # tabnum is 1 for <TAB> and -1 for <S-TAB> by default
    def tab(self, tabnum):
        # This is a generic tab-completion function that iterates through the
        # content of the current directory.
        return self._tab_directory_content()

class mkcd(Command):
    """
    :mkcd <dirname>

    Creates a directory with the name <dirname> and enters it.
    """

    def execute(self):
        from os.path import join, expanduser, lexists
        from os import makedirs
        import re

        dirname = join(self.fm.thisdir.path, expanduser(self.rest(1)))
        if not lexists(dirname):
            makedirs(dirname)

            match = re.search('^/|^~[^/]*/', dirname)
            if match:
                self.fm.cd(match.group(0))
                dirname = dirname[match.end(0):]

            for m in re.finditer('[^/]+', dirname):
                s = m.group(0)
                if s == '..' or (s.startswith('.') and not self.fm.settings['show_hidden']):
                    self.fm.cd(s)
                else:
                    ## We force ranger to load content before calling `scout`.
                    self.fm.thisdir.load_content(schedule=False)
                    self.fm.execute_console('scout -ae ^{}$'.format(s))
        else:
            self.fm.notify("file/directory exists!", bad=True)

def get_id3tag_cmd(path, key, val):
    from ranger.ext.shell_escape import shell_quote
    return 'id3tag --%s=%s %s' % (key, shell_quote(val), shell_quote(path))

class id3tag_song(Command):
    """
    :id3tag_song <title>

    Set current file id3 song tag to <title>
    """

    def execute(self):
        self.fm.execute_command(get_id3tag_cmd(self.fm.thisfile.path, 'song', self.rest(1)))

class id3tag_artist(Command):
    """
    :id3tag_artist <artist>

    Set current file id3 artist tag to <artist>
    """

    def execute(self):
        self.fm.execute_command(get_id3tag_cmd(self.fm.thisfile.path, 'artist', self.rest(1)))

class fzf_select(Command):
    """
    :fzf_select

    Find a file using fzf.

    With a prefix argument select only directories.

    See: https://github.com/junegunn/fzf
    """
    def execute(self):
        import subprocess
        if self.quantifier:
            # match only directories
            command="find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
            -o -type d -print 2> /dev/null | sed 1d | cut -b3- | fzf +m"
        else:
            # match files and directories
            command="find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
            -o -print 2> /dev/null | sed 1d | cut -b3- | fzf +m"
        fzf = self.fm.execute_command(command, stdout=subprocess.PIPE)
        stdout, stderr = fzf.communicate()
        if fzf.returncode == 0:
            fzf_file = os.path.abspath(stdout.decode('utf-8').rstrip('\n'))
            if os.path.isdir(fzf_file):
                self.fm.cd(fzf_file)
            else:
                self.fm.select_file(fzf_file)

class fzf_locate(Command):
    """
    :fzf_locate

    Find a file using fzf

    See: https://github.com/junegunn/fzf
    """
    def execute(self):
        import subprocess
        if self.quantifier:
            command="locate home media | fzf -e -i"
        else:
            command="locate home media | fzf -e -i"
        fzf = self.fm.execute_command(command, stdout=subprocess.PIPE)
        stdout, stderr = fzf.communicate()
        if fzf.returncode == 0:
            fzf_file = os.path.abspath(stdout.decode('utf-8').rstrip('\n'))
            if os.path.isdir(fzf_file):
                self.fm.cd(fzf_file)
            else:
                self.fm.select_file(fzf_file)