import logging

import datetime

from sqlalchemy import *

from sqlalchemy.exc import DatabaseError

from sqlalchemy.orm import relation, backref, class_mapper, joinedload

from sqlalchemy.orm.session import Session

from sqlalchemy.ext.declarative import declarative_base

from rhodecode.lib.dbmigrate.migrate import *

from rhodecode.lib.dbmigrate.migrate.changeset import *

from rhodecode.model.meta import Base

from rhodecode.model import meta

log = logging.getLogger(__name__)

def upgrade(migrate_engine):

    """

    Upgrade operations go here.

    Don't create your own engine; bind migrate_engine to your metadata

    """

    #==========================================================================

    # USER LOGS

    #==========================================================================

    from rhodecode.lib.dbmigrate.schema.db_1_5_0 import UserLog

    tbl = UserLog.__table__

    username = Column("username", String(255, convert_unicode=False,

                                         assert_unicode=None), nullable=True,

                      unique=None, default=None)

    # create username column

    username.create(table=tbl)

    ## after adding that column fix all usernames

    users_log = UserLog.query()\

            .options(joinedload(UserLog.user))\

            .options(joinedload(UserLog.repository)).all()

    for entry in users_log:

        entry.username = entry.user.username

        Session().add(entry)

    Session().commit()

def downgrade(migrate_engine):

    meta = MetaData()

    meta.bind = migrate_engine

            key = row.app_settings_name

            if strip_prefix:

                key = remove_prefix(key, prefix='default_')

            fd.update({key: row.app_settings_value})

        return fd

class RhodeCodeUi(Base, BaseModel):

    __tablename__ = 'rhodecode_ui'

    __table_args__ = (

        UniqueConstraint('ui_key'),

        {'extend_existing': True, 'mysql_engine': 'InnoDB',

         'mysql_charset': 'utf8'}

    )

    HOOK_UPDATE = 'changegroup.update'

    HOOK_REPO_SIZE = 'changegroup.repo_size'

    HOOK_PUSH = 'changegroup.push_logger'

    HOOK_PRE_PUSH = 'prechangegroup.pre_push'

    HOOK_PULL = 'outgoing.pull_logger'

    HOOK_PRE_PULL = 'preoutgoing.pre_pull'

    ui_id = Column("ui_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)

    ui_section = Column("ui_section", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    ui_key = Column("ui_key", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    ui_value = Column("ui_value", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    ui_active = Column("ui_active", Boolean(), nullable=True, unique=None, default=True)

    @classmethod

    def get_by_key(cls, key):

        return cls.query().filter(cls.ui_key == key).scalar()

    @classmethod

    def get_builtin_hooks(cls):

        q = cls.query()

        q = q.filter(cls.ui_key.in_([cls.HOOK_UPDATE, cls.HOOK_REPO_SIZE,

                                     cls.HOOK_PUSH, cls.HOOK_PRE_PUSH,

                                     cls.HOOK_PULL, cls.HOOK_PRE_PULL]))

        return q.all()

    @classmethod

    def get_custom_hooks(cls):

        q = cls.query()

        q = q.filter(~cls.ui_key.in_([cls.HOOK_UPDATE, cls.HOOK_REPO_SIZE,

                                      cls.HOOK_PUSH, cls.HOOK_PRE_PUSH,

                                      cls.HOOK_PULL, cls.HOOK_PRE_PULL]))

        q = q.filter(cls.ui_section == 'hooks')

        return q.all()

    @classmethod

    def get_repos_location(cls):

        return cls.get_by_key('/').ui_value

    @classmethod

    def create_or_update_hook(cls, key, val):

        new_ui = cls.get_by_key(key) or cls()

        new_ui.ui_section = 'hooks'

        new_ui.ui_active = True

        new_ui.ui_key = key

        new_ui.ui_value = val

        Session().add(new_ui)

    def __repr__(self):

        return '<DB:%s[%s:%s]>' % (self.__class__.__name__, self.ui_key,

                                   self.ui_value)

class User(Base, BaseModel):

    __tablename__ = 'users'

    __table_args__ = (

        UniqueConstraint('username'), UniqueConstraint('email'),

        Index('u_username_idx', 'username'),

        Index('u_email_idx', 'email'),

        {'extend_existing': True, 'mysql_engine': 'InnoDB',

         'mysql_charset': 'utf8'}

    )

    DEFAULT_USER = 'default'

    DEFAULT_PERMISSIONS = [

        'hg.register.manual_activate', 'hg.create.repository',

        'hg.fork.repository', 'repository.read', 'group.read'

    ]

    user_id = Column("user_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)

    username = Column("username", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    password = Column("password", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    active = Column("active", Boolean(), nullable=True, unique=None, default=True)

    admin = Column("admin", Boolean(), nullable=True, unique=None, default=False)

    name = Column("firstname", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    lastname = Column("lastname", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    _email = Column("email", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    last_login = Column("last_login", DateTime(timezone=False), nullable=True, unique=None, default=None)

    ldap_dn = Column("ldap_dn", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    api_key = Column("api_key", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    inherit_default_permissions = Column("inherit_default_permissions", Boolean(), nullable=False, unique=None, default=True)

    user_perms = relationship('UserToPerm', primaryjoin="User.user_id==UserToPerm.user_id", cascade='all')

    repositories = relationship('Repository')

    user_followers = relationship('UserFollowing', primaryjoin='UserFollowing.follows_user_id==User.user_id', cascade='all')

    repo_to_perm = relationship('UserRepoToPerm', primaryjoin='UserRepoToPerm.user_id==User.user_id', cascade='all')

    repo_group_to_perm = relationship('UserRepoGroupToPerm', primaryjoin='UserRepoGroupToPerm.user_id==User.user_id', cascade='all')

    group_member = relationship('UsersGroupMember', cascade='all')

    notifications = relationship('UserNotification', cascade='all')

    # notifications assigned to this user

    user_created_notifications = relationship('Notification', cascade='all')

    # comments created by this user

    user_comments = relationship('ChangesetComment', cascade='all')

    #extra emails for this user

    user_emails = relationship('UserEmailMap', cascade='all')

    @hybrid_property

    def email(self):

        return self._email

    @email.setter

    def email(self, val):

        self._email = val.lower() if val else None

    @property

    def firstname(self):

        # alias for future

        return self.name

    @property

    def emails(self):

        other = UserEmailMap.query().filter(UserEmailMap.user==self).all()

        return [self.email] + [x.email for x in other]

    @property

    def username_and_name(self):

        return '%s (%s %s)' % (self.username, self.firstname, self.lastname)

    @property

    def full_name(self):

        return '%s %s' % (self.firstname, self.lastname)

    @property

    def full_name_or_username(self):

        return ('%s %s' % (self.firstname, self.lastname)

                if (self.firstname and self.lastname) else self.username)

    @property

    def full_contact(self):

        return '%s %s <%s>' % (self.firstname, self.lastname, self.email)

    @property

    def short_contact(self):

        return '%s %s' % (self.firstname, self.lastname)

    @property

    def is_admin(self):

        return self.admin

    def __unicode__(self):

        return u"<%s('id:%s:%s')>" % (self.__class__.__name__,

                                     self.user_id, self.username)

    @classmethod

    def get_by_username(cls, username, case_insensitive=False, cache=False):

        if case_insensitive:

            q = cls.query().filter(cls.username.ilike(username))

        else:

            q = cls.query().filter(cls.username == username)

        if cache:

            q = q.options(FromCache(

                            "sql_cache_short",

                            "get_user_%s" % _hash_key(username)

                          )

            )

        return q.scalar()

    @classmethod

    def get_by_api_key(cls, api_key, cache=False):

        q = cls.query().filter(cls.api_key == api_key)

        if cache:

            q = q.options(FromCache("sql_cache_short",

                                    "get_api_key_%s" % api_key))

        return q.scalar()

    @classmethod

    def get_by_email(cls, email, case_insensitive=False, cache=False):

        if case_insensitive:

            q = cls.query().filter(cls.email.ilike(email))

        else:

            q = cls.query().filter(cls.email == email)

        if cache:

            q = q.options(FromCache("sql_cache_short",

                                    "get_email_key_%s" % email))

        ret = q.scalar()

        if ret is None:

            q = UserEmailMap.query()

            # try fetching in alternate email map

            if case_insensitive:

                q = q.filter(UserEmailMap.email.ilike(email))

            else:

                q = q.filter(UserEmailMap.email == email)

            q = q.options(joinedload(UserEmailMap.user))

            if cache:

                q = q.options(FromCache("sql_cache_short",

                                        "get_email_map_key_%s" % email))

            ret = getattr(q.scalar(), 'user', None)

        return ret

    def update_lastlogin(self):

        """Update user lastlogin"""

        self.last_login = datetime.datetime.now()

        Session().add(self)

        log.debug('updated user %s lastlogin' % self.username)

    def get_api_data(self):

        """

        Common function for generating user related data for API

        """

        user = self

        data = dict(

            user_id=user.user_id,

            username=user.username,

            firstname=user.name,

            lastname=user.lastname,

            email=user.email,

            emails=user.emails,

            api_key=user.api_key,

            active=user.active,

            admin=user.admin,

            ldap_dn=user.ldap_dn,

            last_login=user.last_login,

        )

        return data

    def __json__(self):

        data = dict(

            full_name=self.full_name,

            full_name_or_username=self.full_name_or_username,

            short_contact=self.short_contact,

            full_contact=self.full_contact

        )

        data.update(self.get_api_data())

        return data

class UserEmailMap(Base, BaseModel):

    __tablename__ = 'user_email_map'

    __table_args__ = (

        Index('uem_email_idx', 'email'),

        UniqueConstraint('email'),

        {'extend_existing': True, 'mysql_engine': 'InnoDB',

         'mysql_charset': 'utf8'}

    )

    __mapper_args__ = {}

    email_id = Column("email_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)

    user_id = Column("user_id", Integer(), ForeignKey('users.user_id'), nullable=True, unique=None, default=None)

    _email = Column("email", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=False, default=None)

    user = relationship('User', lazy='joined')

    @validates('_email')

    def validate_email(self, key, email):

        # check if this email is not main one

        main_email = Session().query(User).filter(User.email == email).scalar()

        if main_email is not None:

            raise AttributeError('email %s is present is user table' % email)

        return email

    @hybrid_property

    def email(self):

        return self._email

    @email.setter

    def email(self, val):

        self._email = val.lower() if val else None

class UserLog(Base, BaseModel):

    __tablename__ = 'user_logs'

    __table_args__ = (

        {'extend_existing': True, 'mysql_engine': 'InnoDB',

         'mysql_charset': 'utf8'},

    )

    user_log_id = Column("user_log_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)

    username = Column("username", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    repository_id = Column("repository_id", Integer(), ForeignKey('repositories.repo_id'), nullable=True)

    repository_name = Column("repository_name", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    user_ip = Column("user_ip", String(255, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    action = Column("action", UnicodeText(1200000, convert_unicode=False, assert_unicode=None), nullable=True, unique=None, default=None)

    action_date = Column("action_date", DateTime(timezone=False), nullable=True, unique=None, default=None)

    @property

    def action_as_day(self):

        return datetime.date(*self.action_date.timetuple()[:3])

    user = relationship('User')

    repository = relationship('Repository', cascade='')

class UsersGroup(Base, BaseModel):

    __tablename__ = 'users_groups'

    __table_args__ = (

        {'extend_existing': True, 'mysql_engine': 'InnoDB',

         'mysql_charset': 'utf8'},

    )

    users_group_id = Column("users_group_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)

    users_group_name = Column("users_group_name", String(255, convert_unicode=False, assert_unicode=None), nullable=False, unique=True, default=None)

    users_group_active = Column("users_group_active", Boolean(), nullable=True, unique=None, default=None)

    inherit_default_permissions = Column("users_group_inherit_default_permissions", Boolean(), nullable=False, unique=None, default=True)

    members = relationship('UsersGroupMember', cascade="all, delete, delete-orphan", lazy="joined")

    users_group_to_perm = relationship('UsersGroupToPerm', cascade='all')

    users_group_repo_to_perm = relationship('UsersGroupRepoToPerm', cascade='all')

    def __unicode__(self):

        return u'<userGroup(%s)>' % (self.users_group_name)

    @classmethod

    def get_by_group_name(cls, group_name, cache=False,

                          case_insensitive=False):

        if case_insensitive:

            q = cls.query().filter(cls.users_group_name.ilike(group_name))

        else:

            q = cls.query().filter(cls.users_group_name == group_name)

        if cache:

            q = q.options(FromCache(

                            "sql_cache_short",

                            "get_user_%s" % _hash_key(group_name)

                          )

            )

        return q.scalar()

    @classmethod

    def get(cls, users_group_id, cache=False):

        users_group = cls.query()

        if cache:

            users_group = users_group.options(FromCache("sql_cache_short",

                                    "get_users_group_%s" % users_group_id))

        return users_group.get(users_group_id)

    def get_api_data(self):

        users_group = self

        data = dict(

            users_group_id=users_group.users_group_id,

            group_name=users_group.users_group_name,

            active=users_group.users_group_active,

        )

        return data

class UsersGroupMember(Base, BaseModel):

    __tablename__ = 'users_groups_members'

    __table_args__ = (

        {'extend_existing': True, 'mysql_engine': 'InnoDB',

         'mysql_charset': 'utf8'},

    )

    users_group_member_id = Column("users_group_member_id", Integer(), nullable=False, unique=True, default=None, primary_key=True)

    users_group_id = Column("users_group_id", Integer(), ForeignKey('users_groups.users_group_id'), nullable=False, unique=None, default=None)

    user_id = Column("user_id", Integer(), ForeignKey('users.user_id'), nullable=False, unique=None, default=None)

    user = relationship('User', lazy='joined')

    users_group = relationship('UsersGroup')

    def __init__(self, gr_id='', u_id=''):

        self.users_group_id = gr_id

        self.user_id = u_id

class Repository(Base, BaseModel):

    __tablename__ = 'repositories'

    __table_args__ = (

        UniqueConstraint('repo_name'),

        Index('r_repo_name_idx', 'repo_name'),

        {'extend_existing': True, 'mysql_engine': 'InnoDB',

         'mysql_charset': 'utf8'},

    )