"""Debug Plugin for EasyEngine."""

from cement.core.controller import CementBaseController, expose
from cement.core import handler, hook
from ee.core.shellexec import EEShellExec


def debug_plugin_hook(app):
    # do something with the ``app`` object here.
    pass


class EEDebugController(CementBaseController):
    class Meta:
        label = 'debug'
        description = 'debug command enables/disbaled stack debug'
        stacked_on = 'base'
        stacked_type = 'nested'
        arguments = [
            (['--stop'],
                dict(help='Stop debug', action='store_true')),
            (['--start'],
                dict(help='Start debug', action='store_true')),
            (['--nginx'],
                dict(help='Debug Nginx', action='store_true')),
            (['--php'],
                dict(help='Debug PHP', action='store_true')),
            (['--fpm'],
                dict(help='Debug FastCGI', action='store_true')),
            (['--mysql'],
                dict(help='Debug MySQL', action='store_true')),
            (['--wp'],
                dict(help='Debug WordPress sites', action='store_true')),
            (['--rewrite'],
                dict(help='Debug Nginx rewrite rules', action='store_true')),
            (['-i', '--interactive'],
                dict(help='Interactive debug', action='store_true')),
            ]

    @expose(hide=True)
    def debug_nginx(self):
        self.trigger_nginx = False
        if self.start:
            try:
                debug_address = (self.app.config.get('stack', 'ip-address')
                                 .split())
            except Exception as e:
                debug_address = ['0.0.0.0/0']
            for ip_addr in debug_address:
                if not ("debug_connection "+ip_addr in open('/etc/nginx/'
                   'nginx.conf').read()):
                    print("Setting up NGINX debug connection for "+ip_addr)
                    EEShellExec.cmd_exec(self, "sed -i \"/events {{/a\\ \\ \\ "
                                               "\\ $(echo debug_connection "
                                               "{ip}\;)\" /etc/nginx/"
                                               "nginx.conf".format(ip=ip_addr))
                    self.trigger_nginx = True

            if not self.trigger_nginx:
                print("NGINX debug connection already enabled")

            self.msg = self.msg + " /var/log/nginx/*.error.log"

        else:
            if "debug_connection " in open('/etc/nginx/nginx.conf').read():
                print("Disabling Nginx debug connections")
                EEShellExec.cmd_exec(self, "sed -i \"/debug_connection.*/d\""
                                     " /etc/nginx/nginx.conf")
                self.trigger_nginx = True
            else:
                print("Nginx debug connection already disbaled")

    @expose(hide=True)
    def debug_php(self):
        if self.start:
            if not (EEShellExec.cmd_exec(self, "sed -n \"/upstream php"
                                               "{/,/}/p \" /etc/nginx/"
                                               "conf.d/upstream.conf "
                                               "| grep 9001")):
                print("Enabling PHP debug")
                data = dict(php="9001", debug="9001")
                self.app.log.debug('writting the nginx configration to file'
                                   '/etc/nginx/conf.d/upstream.conf ')
                ee_nginx = open('/etc/nginx/conf.d/upstream.conf', 'w')
                self.app.render((data), 'upstream.mustache', out=ee_nginx)
                ee_nginx.close()

            else:
                print("PHP debug is allready enabled")
        else:
            if EEShellExec.cmd_exec(self, "sed -n \"/upstream php {/,/}/p\" "
                                          "/etc/nginx/conf.d/upstream.conf "
                                          "| grep 9001"):
                print("Disabling PHP debug")
                data = dict(php="9000", debug="9001")
                self.app.log.debug('writting the nginx configration to file'
                                   '/etc/nginx/conf.d/upstream.conf ')
                ee_nginx = open('/etc/nginx/conf.d/upstream.conf', 'w')
                self.app.render((data), 'upstream.mustache', out=ee_nginx)
                ee_nginx.close()
            else:
                print("PHP debug is allready disbaled")

    @expose(hide=True)
    def debug_fpm(self):
        if self.start:
            print("Start FPM debug")
        else:
            print("Stop FPM debug")

    @expose(hide=True)
    def debug_mysql(self):
        if self.start:
            print("Start MySQL debug")
        else:
            print("Stop MySQL debug")

    @expose(hide=True)
    def debug_wp(self):
        if self.start:
            print("Start WP debug")
        else:
            print("Stop WP debug")

    @expose(hide=True)
    def debug_rewrite(self):
        if self.start:
            print("Start WP-Rewrite debug")
        else:
            print("Stop WP-Rewrite debug")

    @expose(hide=True)
    def default(self):
        self.start = True
        self.interactive = False
        self.msg = ""

        if self.app.pargs.stop:
            self.start = False

        if ((not self.app.pargs.nginx) and (not self.app.pargs.php)
           and (not self.app.pargs.fpm) and (not self.app.pargs.mysql)
           and (not self.app.pargs.wp) and (not self.app.pargs.rewrite)):
            self.debug_nginx()
            self.debug_php()
            self.debug_fpm()
            self.debug_mysql()
            self.debug_wp()
            self.debug_rewrite()

        if self.app.pargs.nginx:
            self.debug_nginx()
        if self.app.pargs.php:
            self.debug_php()
        if self.app.pargs.fpm:
            self.debug_fpm()
        if self.app.pargs.mysql:
            self.debug_mysql()
        if self.app.pargs.wp:
            self.debug_wp()
        if self.app.pargs.rewrite:
            self.debug_rewrite()

        if self.app.pargs.interactive:
            self.interactive = True


def load(app):
    # register the plugin class.. this only happens if the plugin is enabled
    handler.register(EEDebugController)
    # register a hook (function) to run after arguments are parsed.
    hook.register('post_argument_parsing', debug_plugin_hook)