###
# Copyright (c) 2005, Ali Afshar
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#   * Redistributions of source code must retain the above copyright notice,
#     this list of conditions, and the following disclaimer.
#   * Redistributions in binary form must reproduce the above copyright notice,
#     this list of conditions, and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#   * Neither the name of the author of this software nor the name of
#     contributors to this software may be used to endorse or promote products
#     derived from this software without specific prior written consent.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
###

import os
import cgi
import sys
import imp
import supybot.log as log

log.setLevel(10)

def genModules(*dirs):
    log.info('Generating plugin modules.')
    for plugindir in dirs:
        log.info('Analysing %s', plugindir)
        # strip the trailing separator
        path, plugin = os.path.split(plugindir.rstrip(os.sep))
        # len(plugin) will ? always be true
        if len(plugin) and plugin[0].isupper():
            try:
                fm = imp.find_module(plugin, [path])
            except ImportError:
                log.warning('Failed find_module, skipping %s', plugin)
                continue
            if fm[0]:
                log.warning('Module is not a directory, skipping %s', plugin)
                continue
            try:
                mod = imp.load_module(plugin, *fm)
                log.info('Successfully loaded %s', plugin)
                yield mod
            except ImportError:
                log.warning('Failed load_module, skipping %s', plugin)
                continue
        else:
            log.warning('Does not start with an uppercase, skipping %s', plugin)
            continue
       
class PluginDoc(object):
    def __init__(self, mod):
        self.mod = mod
        self.lines = []
        
    def appendLine(self, line, indent=0):
        self.lines.append('%s%s' % (' ' * indent * 2, cgi.escape(line)))
        
    def renderSTX(self):
        inst = self.mod.Class(None)
        self.appendLine('Documentation for the %s plugin for'
                        'supybot' % self.mod.Class.__name__)
        self.appendLine('')
        self.appendLine('Commands', 1)
        self.appendLine('')
        for command in inst.listCommands():
            log.debug('command: %s', command)
            self.appendLine(command, 2)
            self.appendLine('')
            com = getattr(self.mod.Class, command, False)
            doc = None
            if com:
                doc = com.__doc__.splitlines()
            else:
                # this is a nested plugin
                nclass = None
                try:
                    nroot, nname = command.split()
                except ValueError:
                    log.warning('Failed to find command, skipping %s', command)
                    break
                nclass = getattr(self.mod.Class, nroot, False)
                if nclass:
                    ncom = getattr(nclass, nname, False)
                    doc = ncom.__doc__.splitlines()
                else:
                    log.warning('Failed to find nested pligun command, skipping %s',
                        command)
                    break
            if doc:
                args = doc.pop(0)
                doc = [l.strip() for l in doc]
                self.appendLine('Arguments: **%s**' % args, 3)
                self.appendLine('')
                self.appendLine('Description: %s' % ''.join(doc), 3)
                self.appendLine('')
            else:
                self.appendLine('No help Associated with this command', 3)
                self.appendLine('')
        self.appendLine('')
        return '\n'.join(self.lines)


def main(*args):
    for m in genModules(*args):
        f.write(PluginDoc(m).renderSTX())

if __name__ == '__main__':
    f = open('f.stx', 'w')
    main(*sys.argv[1:])
    f.close()

# vim:set shiftwidth=4 tabstop=4 expandtab textwidth=78: