import os
import re
import logging
import distutils
import urlparse

from wizard import app, install, resolve, sql, util
from wizard.app import php

def make_filename_regex_define(var):
    return 'wp-config.php', php.re_define(var)

seed = util.dictmap(make_filename_regex_define, {
    # these funny names are due to convention set by MediaWiki
    'WIZARD_DBSERVER': 'DB_HOST',
    'WIZARD_DBNAME': 'DB_NAME',
    'WIZARD_DBUSER': 'DB_USER',
    'WIZARD_DBPASSWORD': 'DB_PASSWORD',
    'WIZARD_SECRETKEY': 'SECRET_KEY',
    'WIZARD_AUTH_KEY': 'AUTH_KEY',
    'WIZARD_SECURE_AUTH_KEY': 'SECURE_AUTH_KEY',
    'WIZARD_LOGGED_IN_KEY': 'LOGGED_IN_KEY',
    'WIZARD_NONCE_KEY': 'NONCE_KEY',
    })

class Application(app.Application):
    database = "mysql"
    parametrized_files = ['wp-config.php'] + php.parametrized_files
    extractors = app.make_extractors(seed)
    extractors.update(php.extractors)
    substitutions = app.make_substitutions(seed)
    substitutions.update(php.substitutions)
    install_schema = install.ArgSchema("db", "email", "title")
    deprecated_keys = set(['WIZARD_SECRETKEY'])
    def download(self, version):
        return "http://wordpress.org/wordpress-%s.tar.gz" % version
    def checkConfig(self, deployment):
        return os.path.isfile("wp-config.php")
    def checkWeb(self, deployment):
        # XXX: this sucks pretty hard
        return self.checkWebPage(deployment, "", "<html")
    def detectVersion(self, deployment):
        return self.detectVersionFromFile("wp-includes/version.php", php.re_var("wp_version"))
    def prepareMerge(self, deployment):
        # This file shouldn't really be edited by users, but be careful: it's
        # stored as DOS and not as UNIX, so you'll get conflicts if you add this line:
        # resolve.fix_newlines("wp-config.php")
        pass
    def install(self, version, options):
        util.soft_unlink("wp-config.php")

        post_setup_config = {
                'dbhost': options.dsn.host,
                'uname': options.dsn.username,
                'dbname': options.dsn.database,
                'pwd': options.dsn.password,
                'prefix': '',
                'submit': 'Submit',
                'step': '2',
                }
        post_install = {
                'weblog_title': options.title,
                'admin_email': options.email,
                'submit': 'Continue',
                'step': '2',
                }
        old_mode = os.stat(".").st_mode
        os.chmod(".", 0777) # XXX: squick squick
        result = install.fetch(options, "wp-admin/setup-config.php?step=2", post_setup_config)
        logging.debug("setup-config.php output\n\n" + result)
        result = install.fetch(options, "wp-admin/install.php?step=2", post_install)
        logging.debug("install.php output\n\n" + result)
        os.chmod(".", old_mode)
        if "Finished" not in result and "Success" not in result:
            raise app.InstallFailure()

        # not sure what to do about this
        meta = sql.connect(options.dsn)
        wp_options = meta.tables["wp_options"]
        wp_options.update().where(wp_options.c.option_name == 'siteurl').values(option_value=options.web_path).execute()
        wp_options.update().where(wp_options.c.option_name == 'home').values(option_value="http://%s%s" % (options.web_host, options.web_path)).execute() # XXX: what if missing leading slash; this should be put in a function
        # should also set the username and admin password
    def upgrade(self, d, version, options):
        result = d.fetch("wp-admin/upgrade.php?step=1")
        if "Upgrade Complete" not in result and "No Upgrade Required" not in result:
            raise app.UpgradeFailure(result)
    def backup(self, deployment, backup_dir, options):
        app.backup_database(backup_dir, deployment)
    def restore(self, deployment, backup_dir, options):
        app.restore_database(backup_dir, deployment)
    def remove(self, deployment, options):
        app.remove_database(deployment)