# -*- coding: utf-8 -*-

"""

 (c) 2014-2015 - Copyright Red Hat Inc

 Authors:

   Pierre-Yves Chibon <pingou@pingoured.fr></pingou@pingoured.fr>

progit notifications.

"""

import smtplib

import progit

from email.mime.text import MIMEText

def send_email(text, subject, to_mail, from_mail=None, mail_id=None,

               in_reply_to=None):  # pragma: no cover

    ''' Send an email with the specified information.

    :arg text: the content of the email to send

    :arg subject: the subject of the email

    :arg to_mail: a string representing a list of recipient separated by a

        coma

    :kwarg from_mail: the email address the email is sent from.

        Defaults to nobody@progit

    :kwarg mail_id: if defined, the header `mail-id` is set with this value

    :kwarg in_reply_to: if defined, the header `In-Reply-To` is set with

        this value

    '''

    msg = MIMEText(text.encode('utf-8'), 'plain', 'utf-8')

    msg['Subject'] = '[Progit] %s' % subject

    if not from_mail:

        from_email = 'progit@fedoraproject.org'

    msg['From'] = from_email

    msg['Bcc'] = to_mail.replace(',', ', ')

    if mail_id:

        msg['mail-id'] = mail_id

        msg['Message-Id'] = '<%s>' % mail_id

    if in_reply_to:

        msg['In-Reply-To'] = '<%s>' % in_reply_to

    # Send the message via our own SMTP server, but don't include the

    # envelope header.

    smtp = smtplib.SMTP(progit.APP.config['SMTP_SERVER'])

    smtp.sendmail(

        from_email,

        to_mail.split(','),

        msg.as_string())

    smtp.quit()

    return msg

def notify_new_comment(comment):

    ''' Notify the people following an issue that a new comment was added

    to the issue.

    '''

    text = """

%s added a new comment to an issue you are following.

New comment:

``

%s

``

%s

""" % (

        comment.user.user,

        comment.comment,

        '%s/%s/issue/%s' % (

            progit.APP.config['APP_URL'],

            comment.issue.project.name,

            comment.issue.id,

        ),

    )

    mail_to = set([cmt.user.emails[0].email for cmt in comment.issue.comments])

    mail_to.add(comment.issue.project.user.emails[0].email)

    if comment.issue.assignee and comment.issue.assignee.emails:

        mail_to.add(comment.issue.assignee.emails[0].email)

    send_email(

        text,

        'Update to issue `%s`' % comment.issue.title,

        ','.join(mail_to),

        in_reply_to=comment.issue.mail_id,

    )

def notify_new_issue(issue):

    ''' Notify the people following a project that a new issue was added

    to it.

    '''

    text = """

%s reported a new issue against the project: `%s` that you are following.

New issue:

``

%s

``

%s

""" % (

        issue.user.user,

        issue.project.name,

        issue.content,

        '%s/%s/issue/%s' % (

            progit.APP.config['APP_URL'],

            issue.project.name,

            issue.id,

        ),

    )

    mail_to = set([cmt.user.emails[0].email for cmt in issue.comments])

    mail_to.add(issue.project.user.emails[0].email)

    # I will keeps this here as things might change in the future, but

    # basically we should never enter this `if` as currently an issue cannot

    # be created assigned to someone, it is always a 2 steps process.

    if issue.assignee:

        mail_to.add(issue.assignee.emails[0].email)

    for prouser in issue.project.users:

        if prouser.emails:

            mail_to.add(prouser.emails[0].email)

    send_email(

        text,

        'New issue `%s`' % issue.title,

        ','.join(mail_to),

        mail_id=issue.mail_id,

    )

def notify_assigned_issue(issue, new_assignee, username):

    ''' Notify the people following an issue that the assignee changed.

    '''

    action = 'reset'

    if new_assignee:

        action = 'assigned to `%s`' % new_assignee.user

    text = """

The issue: `%s` of project: `%s` has been %s by %s.

%s

""" % (

        issue.title,

        issue.project.name,

        action,

        username,

        '%s/%s/issue/%s' % (

            progit.APP.config['APP_URL'],

            issue.project.name,

            issue.id,

        ),

    )

    mail_to = set([cmt.user.emails[0].email for cmt in issue.comments])

    mail_to.add(issue.project.user.emails[0].email)

    if issue.assignee and issue.assignee.emails:

        mail_to.add(issue.assignee.emails[0].email)

    if new_assignee and new_assignee.emails:

        mail_to.add(new_assignee.emails[0].email)

    send_email(

        text,

        'Issue `%s` assigned' % issue.title,

        ','.join(mail_to),

        mail_id=issue.mail_id,

    )

def notify_new_pull_request(request):

    ''' Notify the people following a project that a new pull-request was

    added to it.

    '''

    text = """

%s opened a new pull-request against the project: `%s` that you are following.

New pull-request:

``

%s

``

%s

""" % (

        request.user.user,

        request.repo.name,

        request.title,

        '%s/%s/request-pull/%s' % (

            progit.APP.config['APP_URL'],

            request.repo.name,

            request.id,

        ),

    )

    mail_to = set([cmt.user.emails[0].email for cmt in request.comments])

    mail_to.add(request.repo.user.emails[0].email)

    for prouser in request.repo.users:

        if prouser.emails:

            mail_to.add(prouser.emails[0].email)

    send_email(

        text,

        'Pull-Request #%s `%s`' % (request.id, request.title),

        ','.join(mail_to),

        mail_id=request.mail_id,

    )

def notify_merge_pull_request(request, user):

    ''' Notify the people following a project that a pull-request was merged

    in it.

    '''

    text = """

%s merged a pull-request against the project: `%s` that you are following.

Merged pull-request:

``

%s

``

%s

""" % (

        user.username,

        request.repo.name,

        request.title,

        '%s/%s/request-pull/%s' % (

            progit.APP.config['APP_URL'],

            request.repo.name,

            request.id,

        ),

    )

    mail_to = set([cmt.user.emails[0].email for cmt in request.comments])

    mail_to.add(request.repo.user.emails[0].email)

    for prouser in request.repo.users:

        if prouser.emails:

            mail_to.add(prouser.emails[0].email)

    send_email(

        text,

        'Pull-Request #%s `%s`' % (request.id, request.title),

        ','.join(mail_to),

        mail_id=request.mail_id,

    )

def notify_cancelled_pull_request(request, user):

    ''' Notify the people following a project that a pull-request was

    cancelled in it.

    '''

    text = """

%s canceled a pull-request against the project: `%s` that you are following.

Cancelled pull-request:

``

%s

``

%s

""" % (

        user.username,

        request.repo.name,

        request.title,

        '%s/%s/request-pull/%s' % (

            progit.APP.config['APP_URL'],

            request.repo.name,

            request.id,

        ),

    )

    mail_to = set([cmt.user.emails[0].email for cmt in request.comments])

    mail_to.add(request.repo.user.emails[0].email)

    for prouser in request.repo.users:

        if prouser.emails:

            mail_to.add(prouser.emails[0].email)

    send_email(

        text,

        'Pull-Request #%s `%s`' % (request.id, request.title),

        ','.join(mail_to),

        mail_id=request.mail_id,

    )