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

"""
 (c) 2014-2016 - Copyright Red Hat Inc

 Authors:
   Pierre-Yves Chibon <pingou@pingoured.fr>

"""

# pylint: disable=too-few-public-methods
# pylint: disable=no-init
# pylint: disable=super-on-old-class

from __future__ import unicode_literals, absolute_import

import datetime
import re

import flask
import flask_wtf as wtf

try:
    from flask_wtf import FlaskForm
except ImportError:
    from flask_wtf import Form as FlaskForm

import six
import wtforms

import pagure.lib.query
import pagure.validators
from pagure.config import config as pagure_config
from pagure.utils import urlpattern, is_admin

STRICT_REGEX = "^[a-zA-Z0-9-_]+$"
# This regex is used when creating tags, there we do not want to allow ','
# as otherwise it breaks the UI.
TAGS_REGEX = "^[a-zA-Z0-9-_ .:]+$"
# In the issue page tags are sent as a comma-separated list, so in order to
# allow having multiple tags in an issue, we need to allow ',' in them.
TAGS_REGEX_MULTI = "^[a-zA-Z0-9-_, .:]+$"
FALSE_VALUES = ("false", "", False, "False", 0, "0")

WTF_VERSION = tuple()
if hasattr(wtf, "__version__"):
    WTF_VERSION = tuple(int(v) for v in wtf.__version__.split("."))


class PagureForm(FlaskForm):
    """ Local form allowing us to form set the time limit. """

    def __init__(self, *args, **kwargs):
        delta = pagure_config.get("WTF_CSRF_TIME_LIMIT", 3600)
        if delta and WTF_VERSION < (0, 10, 0):
            self.TIME_LIMIT = datetime.timedelta(seconds=delta)
        else:
            self.TIME_LIMIT = delta
        if "csrf_enabled" in kwargs and kwargs["csrf_enabled"] is False:
            kwargs["meta"] = {"csrf": False}
            if WTF_VERSION >= (0, 14, 0):
                kwargs.pop("csrf_enabled")
        super(PagureForm, self).__init__(*args, **kwargs)


def convert_value(val):
    """ Convert the provided values to strings when possible. """
    if val:
        if not isinstance(val, (list, tuple, six.text_type)):
            return val.decode("utf-8")
        elif isinstance(val, six.string_types):
            return val


class MultipleEmail(wtforms.validators.Email):
    """ Split the value by comma and run them through the email validator
    of wtforms.
    """

    def __call__(self, form, field):
        message = field.gettext("One or more invalid email address.")
        for data in field.data.split(","):
            data = data.strip()
            if not self.regex.match(data or ""):
                raise wtforms.validators.ValidationError(message)


def user_namespace_if_private(form, field):
    """ Check if the data in the field is the same as in the password field.
    """
    if form.private.data:
        field.data = flask.g.fas_user.username


def file_virus_validator(form, field):
    """ Checks for virus in the file from flask request object,
    raises wtf.ValidationError if virus is found else None. """

    if not pagure_config["VIRUS_SCAN_ATTACHMENTS"]:
        return
    from pyclamd import ClamdUnixSocket

    if (
        field.name not in flask.request.files
        or flask.request.files[field.name].filename == ""
    ):
        # If no file was uploaded, this field is correct
        return
    uploaded = flask.request.files[field.name]
    clam = ClamdUnixSocket()
    if not clam.ping():
        raise wtforms.ValidationError(
            "Unable to communicate with virus scanner"
        )
    results = clam.scan_stream(uploaded.stream.read())
    if results is None:
        uploaded.stream.seek(0)
        return
    else:
        result = results.values()
        res_type, res_msg = result
        if res_type == "FOUND":
            raise wtforms.ValidationError("Virus found: %s" % res_msg)
        else:
            raise wtforms.ValidationError("Error scanning uploaded file")


def ssh_key_validator(form, field):
    """ Form for ssh key validation """
    if not pagure.lib.query.are_valid_ssh_keys(field.data):
        raise wtforms.ValidationError("Invalid SSH keys")


class ProjectFormSimplified(PagureForm):
    """ Form to edit the description of a project. """

    description = wtforms.StringField(
        'Description <span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )
    url = wtforms.StringField(
        "URL",
        [
            wtforms.validators.optional(),
            wtforms.validators.Regexp(urlpattern, flags=re.IGNORECASE),
        ],
    )
    avatar_email = wtforms.StringField(
        "Avatar email",
        [
            pagure.validators.EmailValidator("avatar_email must be an email"),
            wtforms.validators.optional(),
        ],
    )
    tags = wtforms.StringField(
        "Project tags",
        [wtforms.validators.optional(), wtforms.validators.Length(max=255)],
    )
    private = wtforms.BooleanField(
        "Private", [wtforms.validators.Optional()], false_values=FALSE_VALUES
    )


class ProjectForm(ProjectFormSimplified):
    """ Form to create or edit project. """

    name = wtforms.StringField('Project name <span class="error">*</span>')
    mirrored_from = wtforms.StringField(
        "Mirror from URL",
        [
            wtforms.validators.optional(),
            wtforms.validators.Regexp(urlpattern, flags=re.IGNORECASE),
        ],
    )
    create_readme = wtforms.BooleanField(
        "Create README",
        [wtforms.validators.optional()],
        false_values=FALSE_VALUES,
    )
    namespace = wtforms.SelectField(
        "Project Namespace",
        [user_namespace_if_private, wtforms.validators.optional()],
        choices=[],
        coerce=convert_value,
    )
    ignore_existing_repos = wtforms.BooleanField(
        "Ignore existing repositories",
        [wtforms.validators.optional()],
        false_values=FALSE_VALUES,
    )
    repospanner_region = wtforms.SelectField(
        "repoSpanner Region",
        [wtforms.validators.optional()],
        choices=(
            [("none", "Disabled")]
            + [
                (region, region)
                for region in pagure_config["REPOSPANNER_REGIONS"].keys()
            ]
        ),
        coerce=convert_value,
        default=pagure_config["REPOSPANNER_NEW_REPO"],
    )

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(ProjectForm, self).__init__(*args, **kwargs)
        # set the name validator
        regex = pagure_config.get(
            "PROJECT_NAME_REGEX", "^[a-zA-z0-9_][a-zA-Z0-9-_.+]*$"
        )
        self.name.validators = [
            wtforms.validators.DataRequired(),
            wtforms.validators.Regexp(regex, flags=re.IGNORECASE),
        ]
        # Set the list of namespace
        if "namespaces" in kwargs:
            self.namespace.choices = [
                (namespace, namespace) for namespace in kwargs["namespaces"]
            ]
            if not pagure_config.get("USER_NAMESPACE", False):
                self.namespace.choices.insert(0, ("", ""))

        if not (
            is_admin()
            and pagure_config.get("ALLOW_ADMIN_IGNORE_EXISTING_REPOS")
        ) and (
            flask.g.fas_user.username
            not in pagure_config["USERS_IGNORE_EXISTING_REPOS"]
        ):
            self.ignore_existing_repos = None

        if not (
            is_admin()
            and pagure_config.get("REPOSPANNER_NEW_REPO_ADMIN_OVERRIDE")
        ):
            self.repospanner_region = None


class IssueFormSimplied(PagureForm):
    """ Form to create or edit an issue. """

    title = wtforms.StringField(
        'Title<span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )
    issue_content = wtforms.TextAreaField(
        'Content<span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )
    private = wtforms.BooleanField(
        "Private", [wtforms.validators.optional()], false_values=FALSE_VALUES
    )
    milestone = wtforms.SelectField(
        "Milestone",
        [wtforms.validators.Optional()],
        choices=[],
        coerce=convert_value,
    )
    priority = wtforms.SelectField(
        "Priority",
        [wtforms.validators.Optional()],
        choices=[],
        coerce=convert_value,
    )

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(IssueFormSimplied, self).__init__(*args, **kwargs)

        self.priority.choices = []
        if "priorities" in kwargs:
            for key in sorted(kwargs["priorities"]):
                self.priority.choices.append((key, kwargs["priorities"][key]))

        self.milestone.choices = []
        if "milestones" in kwargs and kwargs["milestones"]:
            for key in kwargs["milestones"]:
                self.milestone.choices.append((key, key))
        self.milestone.choices.insert(0, ("", ""))


class IssueForm(IssueFormSimplied):
    """ Form to create or edit an issue. """

    status = wtforms.SelectField(
        "Status", [wtforms.validators.DataRequired()], choices=[]
    )

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(IssueForm, self).__init__(*args, **kwargs)
        if "status" in kwargs:
            self.status.choices = [
                (status, status) for status in kwargs["status"]
            ]


class RequestPullForm(PagureForm):
    """ Form to create a pull request. """

    title = wtforms.StringField(
        'Title<span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )
    initial_comment = wtforms.TextAreaField(
        "Initial Comment", [wtforms.validators.Optional()]
    )


class RemoteRequestPullForm(RequestPullForm):
    """ Form to create a remote pull request. """

    git_repo = wtforms.StringField(
        'Git repo address<span class="error">*</span>',
        [
            wtforms.validators.DataRequired(),
            wtforms.validators.Regexp(urlpattern, flags=re.IGNORECASE),
        ],
    )
    branch_from = wtforms.StringField(
        'Git branch<span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )
    branch_to = wtforms.StringField(
        'Git branch to merge in<span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )


class DeleteIssueTagForm(PagureForm):
    """ Form to remove a tag to from a project. """

    tag = wtforms.StringField(
        "Tag",
        [
            wtforms.validators.Optional(),
            wtforms.validators.Regexp(TAGS_REGEX, flags=re.IGNORECASE),
            wtforms.validators.Length(max=255),
        ],
    )


class AddIssueTagForm(DeleteIssueTagForm):
    """ Form to add a tag to a project. """

    tag_description = wtforms.StringField(
        "Tag Description", [wtforms.validators.Optional()]
    )
    tag_color = wtforms.StringField(
        "Tag Color", [wtforms.validators.DataRequired()]
    )


class StatusForm(PagureForm):
    """ Form to add/change the status of an issue. """

    status = wtforms.SelectField(
        "Status", [wtforms.validators.DataRequired()], choices=[]
    )
    close_status = wtforms.SelectField(
        "Closed as", [wtforms.validators.Optional()], choices=[]
    )

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(StatusForm, self).__init__(*args, **kwargs)
        if "status" in kwargs:
            self.status.choices = [
                (status, status) for status in kwargs["status"]
            ]
        self.close_status.choices = []
        if "close_status" in kwargs:
            for key in sorted(kwargs["close_status"]):
                self.close_status.choices.append((key, key))
            self.close_status.choices.insert(0, ("", ""))


class MilestoneForm(PagureForm):
    """ Form to change the milestone of an issue. """

    milestone = wtforms.SelectField(
        "Milestone",
        [wtforms.validators.Optional()],
        choices=[],
        coerce=convert_value,
    )

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(MilestoneForm, self).__init__(*args, **kwargs)
        self.milestone.choices = []
        if "milestones" in kwargs and kwargs["milestones"]:
            for key in kwargs["milestones"]:
                self.milestone.choices.append((key, key))
            self.milestone.choices.insert(0, ("", ""))


class NewTokenForm(PagureForm):
    """ Form to add a new token. """

    description = wtforms.StringField(
        "description", [wtforms.validators.Optional()]
    )
    acls = wtforms.SelectMultipleField(
        "ACLs", [wtforms.validators.DataRequired()], choices=[]
    )

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(NewTokenForm, self).__init__(*args, **kwargs)
        if "acls" in kwargs:
            self.acls.choices = [
                (acl.name, acl.name) for acl in kwargs["acls"]
            ]
        if "sacls" in kwargs:
            self.acls.choices = [(acl, acl) for acl in kwargs["sacls"]]


class UpdateIssueForm(PagureForm):
    """ Form to add a comment to an issue. """

    tag = wtforms.StringField(
        "tag",
        [
            wtforms.validators.Optional(),
            wtforms.validators.Regexp(TAGS_REGEX_MULTI, flags=re.IGNORECASE),
            wtforms.validators.Length(max=255),
        ],
    )
    depending = wtforms.StringField(
        "depending issue", [wtforms.validators.Optional()]
    )
    blocking = wtforms.StringField(
        "blocking issue", [wtforms.validators.Optional()]
    )
    comment = wtforms.TextAreaField("Comment", [wtforms.validators.Optional()])
    assignee = wtforms.TextAreaField(
        "Assigned to", [wtforms.validators.Optional()]
    )
    status = wtforms.SelectField(
        "Status", [wtforms.validators.Optional()], choices=[]
    )
    priority = wtforms.SelectField(
        "Priority", [wtforms.validators.Optional()], choices=[]
    )
    milestone = wtforms.SelectField(
        "Milestone",
        [wtforms.validators.Optional()],
        choices=[],
        coerce=convert_value,
    )
    private = wtforms.BooleanField(
        "Private", [wtforms.validators.optional()], false_values=FALSE_VALUES
    )
    close_status = wtforms.SelectField(
        "Closed as",
        [wtforms.validators.Optional()],
        choices=[],
        coerce=convert_value,
    )

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(UpdateIssueForm, self).__init__(*args, **kwargs)
        if "status" in kwargs:
            self.status.choices = [
                (status, status) for status in kwargs["status"]
            ]

        self.priority.choices = []
        if "priorities" in kwargs:
            for key in sorted(kwargs["priorities"]):
                self.priority.choices.append((key, kwargs["priorities"][key]))

        self.milestone.choices = []
        if "milestones" in kwargs and kwargs["milestones"]:
            for key in kwargs["milestones"]:
                self.milestone.choices.append((key, key))
            self.milestone.choices.insert(0, ("", ""))

        self.close_status.choices = []
        if "close_status" in kwargs:
            for key in sorted(kwargs["close_status"]):
                self.close_status.choices.append((key, key))
            self.close_status.choices.insert(0, ("", ""))


class AddPullRequestCommentForm(PagureForm):
    """ Form to add a comment to a pull-request. """

    commit = wtforms.HiddenField("commit identifier")
    filename = wtforms.HiddenField("file changed")
    row = wtforms.HiddenField("row")
    requestid = wtforms.HiddenField("requestid")
    tree_id = wtforms.HiddenField("treeid")
    comment = wtforms.TextAreaField(
        'Comment<span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )


class AddPullRequestFlagFormV1(PagureForm):
    """ Form to add a flag to a pull-request or commit. """

    username = wtforms.StringField(
        "Username", [wtforms.validators.DataRequired()]
    )
    percent = wtforms.StringField(
        "Percentage of completion", [wtforms.validators.optional()]
    )
    comment = wtforms.TextAreaField(
        "Comment", [wtforms.validators.DataRequired()]
    )
    url = wtforms.StringField(
        "URL",
        [
            wtforms.validators.DataRequired(),
            wtforms.validators.Regexp(urlpattern, flags=re.IGNORECASE),
        ],
    )
    uid = wtforms.StringField("UID", [wtforms.validators.optional()])


class AddPullRequestFlagForm(AddPullRequestFlagFormV1):
    """ Form to add a flag to a pull-request or commit. """

    def __init__(self, *args, **kwargs):
        # we need to instantiate dynamically because the configuration
        # values may change during tests and we want to always respect
        # the currently set value
        super(AddPullRequestFlagForm, self).__init__(*args, **kwargs)
        self.status.choices = list(
            zip(
                pagure_config["FLAG_STATUSES_LABELS"].keys(),
                pagure_config["FLAG_STATUSES_LABELS"].keys(),
            )
        )

    status = wtforms.SelectField(
        "status", [wtforms.validators.DataRequired()], choices=[]
    )


class AddSSHKeyForm(PagureForm):
    """ Form to add a SSH key to a user. """

    ssh_key = wtforms.StringField(
        'SSH Key <span class="error">*</span>',
        [wtforms.validators.DataRequired()]
        # TODO: Add an ssh key validator?
    )


class AddDeployKeyForm(AddSSHKeyForm):
    """ Form to add a deploy key to a project. """

    pushaccess = wtforms.BooleanField(
        "Push access",
        [wtforms.validators.optional()],
        false_values=FALSE_VALUES,
    )


class AddUserForm(PagureForm):
    """ Form to add a user to a project. """

    user = wtforms.StringField(
        'Username <span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )
    access = wtforms.StringField(
        'Access Level <span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )


class AddUserToGroupForm(PagureForm):
    """ Form to add a user to a pagure group. """

    user = wtforms.StringField(
        'Username <span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )


class AssignIssueForm(PagureForm):
    """ Form to assign an user to an issue. """

    assignee = wtforms.StringField(
        'Assignee <span class="error">*</span>',
        [wtforms.validators.Optional()],
    )


class AddGroupForm(PagureForm):
    """ Form to add a group to a project. """

    group = wtforms.StringField(
        'Group <span class="error">*</span>',
        [
            wtforms.validators.DataRequired(),
            wtforms.validators.Regexp(STRICT_REGEX, flags=re.IGNORECASE),
        ],
    )
    access = wtforms.StringField(
        'Access Level <span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )


class ConfirmationForm(PagureForm):
    """ Simple form used just for CSRF protection. """

    pass


class ModifyACLForm(PagureForm):
    """ Form to change ACL of a user or a group to a project. """

    user_type = wtforms.SelectField(
        "User type",
        [wtforms.validators.DataRequired()],
        choices=[("user", "User"), ("group", "Group")],
    )
    name = wtforms.StringField(
        'User- or Groupname <span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )
    acl = wtforms.SelectField(
        "ACL type",
        [wtforms.validators.Optional()],
        choices=[
            ("admin", "Admin"),
            ("ticket", "Ticket"),
            ("commit", "Commit"),
            (None, None),
        ],
        coerce=convert_value,
    )


class UploadFileForm(PagureForm):
    """ Form to upload a file. """

    filestream = wtforms.FileField(
        "File", [wtforms.validators.DataRequired(), file_virus_validator]
    )


class UserEmailForm(PagureForm):
    """ Form to edit the description of a project. """

    email = wtforms.StringField("email", [wtforms.validators.DataRequired()])

    def __init__(self, *args, **kwargs):
        super(UserEmailForm, self).__init__(*args, **kwargs)
        if "emails" in kwargs:
            if kwargs["emails"]:
                self.email.validators.append(
                    wtforms.validators.NoneOf(kwargs["emails"])
                )
        else:
            self.email.validators = [wtforms.validators.DataRequired()]


class ProjectCommentForm(PagureForm):
    """ Form to represent project. """

    objid = wtforms.StringField(
        "Ticket/Request id", [wtforms.validators.DataRequired()]
    )
    useremail = wtforms.StringField(
        "Email", [wtforms.validators.DataRequired()]
    )


class CommentForm(PagureForm):
    """ Form to upload a file. """

    comment = wtforms.FileField(
        "Comment", [wtforms.validators.DataRequired(), file_virus_validator]
    )


class EditGroupForm(PagureForm):
    """ Form to ask for a password change. """

    display_name = wtforms.StringField(
        "Group name to display",
        [
            wtforms.validators.DataRequired(),
            wtforms.validators.Length(max=255),
        ],
    )
    description = wtforms.StringField(
        "Description",
        [
            wtforms.validators.DataRequired(),
            wtforms.validators.Length(max=255),
        ],
    )


class NewGroupForm(EditGroupForm):
    """ Form to ask for a password change. """

    group_name = wtforms.StringField(
        'Group name  <span class="error">*</span>',
        [
            wtforms.validators.DataRequired(),
            wtforms.validators.Length(max=255),
            wtforms.validators.Regexp(STRICT_REGEX, flags=re.IGNORECASE),
        ],
    )
    group_type = wtforms.SelectField(
        "Group type", [wtforms.validators.DataRequired()], choices=[]
    )

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(NewGroupForm, self).__init__(*args, **kwargs)
        if "group_types" in kwargs:
            self.group_type.choices = [
                (grptype, grptype) for grptype in kwargs["group_types"]
            ]


class EditFileForm(PagureForm):
    """ Form used to edit a file. """

    content = wtforms.TextAreaField("content", [wtforms.validators.Optional()])
    commit_title = wtforms.StringField(
        "Title", [wtforms.validators.DataRequired()]
    )
    commit_message = wtforms.TextAreaField(
        "Commit message", [wtforms.validators.optional()]
    )
    email = wtforms.SelectField(
        "Email", [wtforms.validators.DataRequired()], choices=[]
    )
    branch = wtforms.StringField("Branch", [wtforms.validators.DataRequired()])

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(EditFileForm, self).__init__(*args, **kwargs)
        if "emails" in kwargs:
            self.email.choices = [
                (email.email, email.email) for email in kwargs["emails"]
            ]


class DefaultBranchForm(PagureForm):
    """Form to change the default branh for a repository"""

    branches = wtforms.SelectField(
        "default_branch", [wtforms.validators.DataRequired()], choices=[]
    )

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(DefaultBranchForm, self).__init__(*args, **kwargs)
        if "branches" in kwargs:
            self.branches.choices = [
                (branch, branch) for branch in kwargs["branches"]
            ]


class DefaultPriorityForm(PagureForm):
    """Form to change the default priority for a repository"""

    priority = wtforms.SelectField(
        "default_priority", [wtforms.validators.optional()], choices=[]
    )

    def __init__(self, *args, **kwargs):
        """ Calls the default constructor with the normal argument but
        uses the list of collection provided to fill the choices of the
        drop-down list.
        """
        super(DefaultPriorityForm, self).__init__(*args, **kwargs)
        if "priorities" in kwargs:
            self.priority.choices = [
                (priority, priority) for priority in kwargs["priorities"]
            ]


class EditCommentForm(PagureForm):
    """ Form to verify that comment is not empty
    """

    update_comment = wtforms.TextAreaField(
        'Comment<span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )


class ForkRepoForm(PagureForm):
    """ Form to fork a project in the API. """

    repo = wtforms.StringField(
        "The project name", [wtforms.validators.DataRequired()]
    )
    username = wtforms.StringField(
        "User who forked the project", [wtforms.validators.optional()]
    )
    namespace = wtforms.StringField(
        "The project namespace", [wtforms.validators.optional()]
    )


class AddReportForm(PagureForm):
    """ Form to verify that comment is not empty
    """

    report_name = wtforms.TextAreaField(
        'Report name<span class="error">*</span>',
        [wtforms.validators.DataRequired()],
    )


class PublicNotificationForm(PagureForm):
    """ Form to verify that comment is not empty
    """

    issue_notifs = wtforms.TextAreaField(
        'Public issue notification<span class="error">*</span>',
        [wtforms.validators.optional(), MultipleEmail()],
    )

    pr_notifs = wtforms.TextAreaField(
        'Public PR notification<span class="error">*</span>',
        [wtforms.validators.optional(), MultipleEmail()],
    )


class SubscribtionForm(PagureForm):
    """ Form to subscribe to or unsubscribe from an issue or a PR. """

    status = wtforms.BooleanField(
        "Subscription status",
        [wtforms.validators.optional()],
        false_values=FALSE_VALUES,
    )


class MergePRForm(PagureForm):
    delete_branch = wtforms.BooleanField(
        "Delete branch after merging",
        [wtforms.validators.optional()],
        false_values=FALSE_VALUES,
    )


class TriggerCIPRForm(PagureForm):
    def __init__(self, *args, **kwargs):
        # we need to instantiate dynamically because the configuration
        # values may change during tests and we want to always respect
        # the currently set value
        super(TriggerCIPRForm, self).__init__(*args, **kwargs)
        choices = []
        trigger_ci = pagure_config["TRIGGER_CI"]
        if isinstance(trigger_ci, dict):
            # make sure to preserver compatibility with older configs
            # which had TRIGGER_CI as a list
            for comment, meta in trigger_ci.items():
                if meta is not None:
                    choices.append((comment, comment))
        self.comment.choices = choices

    comment = wtforms.SelectField(
        "comment", [wtforms.validators.Required()], choices=[]
    )
