from marshmallow import fields, validate, Schema

from ...dependencies import ma
from ...students.models import Student, Group
from ...project_supervisor.models import ProjectSupervisor
from ..validators import validate_index


class ProjectSupervisorSchema(ma.SQLAlchemyAutoSchema):
    class Meta:
        model = ProjectSupervisor
        include_relationships = False


class GroupSchema(ma.SQLAlchemyAutoSchema):
    project_supervisor = fields.Nested(ProjectSupervisorSchema)

    class Meta:
        model = Group


class StudentSchema(ma.SQLAlchemyAutoSchema):
    groups = fields.List(fields.Nested(GroupSchema))

    class Meta:
        model = Student


class StudentsPaginationSchema(ma.Schema):
    students = fields.List(fields.Nested(StudentSchema))
    max_pages = fields.Integer()


class StudentListFileDownloaderSchema(ma.Schema):
    year_group_id = fields.Integer(required=True)


class StudentCreateSchema(ma.Schema):
    first_name = fields.Str(validate=validate.Length(min=1, max=255), required=True)
    last_name = fields.Str(validate=validate.Length(min=1, max=255), required=True)
    pesel = fields.Str(validate=validate.Length(min=0, max=11), required=True)
    index = fields.Integer(validate=validate_index, required=True)
    year_group_id = fields.Integer()


class StudentEditSchema(ma.Schema):
    first_name = fields.Str(validate=validate.Length(min=1, max=255))
    last_name = fields.Str(validate=validate.Length(min=1, max=255))
    pesel = fields.Str(validate=validate.Length(min=0, max=11))
    index = fields.Integer(validate=validate_index)


class MessageSchema(ma.Schema):
    message = fields.Str(required=True)
    id = fields.Str(required=False)


class FileSchema(ma.Schema):
    file = fields.Raw(metadata={'type': 'file'}, required=True)


class StudentQuerySchema(ma.Schema):
    fullname = fields.Str()
    order_by_first_name = fields.Str()
    order_by_last_name = fields.Str()
    page = fields.Integer()
    per_page = fields.Integer()


class YearGroupInfoQuery(Schema):
    id = fields.Integer(required=True)

class DetailGroupSchema(ma.SQLAlchemyAutoSchema):
    project_supervisor = fields.Nested(ProjectSupervisorSchema)
    students = fields.List(fields.Nested(StudentSchema), validate=validate.Length(min=1, max=255))
    class Meta:
            model = Group