from timeit import repeat

import mongoengine
from mongoengine import (BooleanField, Document, EmailField, EmbeddedDocument,
                         EmbeddedDocumentField, IntField, ListField,
                         StringField)

mongoengine.connect(db='mongoengine_benchmark_test')


def timeit(f, n=10000):
    return min(repeat(f, repeat=3, number=n)) / float(n)


def test_basic():
    class Book(Document):
        name = StringField()
        pages = IntField()
        tags = ListField(StringField())
        is_published = BooleanField()
        author_email = EmailField()

    Book.drop_collection()

    def init_book():
        return Book(
            name='Always be closing',
            pages=100,
            tags=['self-help', 'sales'],
            is_published=True,
            author_email='alec@example.com',
        )

    print('Doc initialization: %.3fus' % (timeit(init_book, 1000) * 10**6))

    b = init_book()
    print('Doc getattr: %.3fus' % (timeit(lambda: b.name, 10000) * 10**6))

    print(
        'Doc setattr: %.3fus' % (
            timeit(lambda: setattr(b, 'name', 'New name'), 10000) * 10**6
        )
    )

    print('Doc to mongo: %.3fus' % (timeit(b.to_mongo, 1000) * 10**6))

    print('Doc validation: %.3fus' % (timeit(b.validate, 1000) * 10**6))

    def save_book():
        b._mark_as_changed('name')
        b._mark_as_changed('tags')
        b.save()

    print('Save to database: %.3fus' % (timeit(save_book, 100) * 10**6))

    son = b.to_mongo()
    print(
        'Load from SON: %.3fus' % (
            timeit(lambda: Book._from_son(son), 1000) * 10**6
        )
    )

    print(
        'Load from database: %.3fus' % (
            timeit(lambda: Book.objects[0], 100) * 10**6
        )
    )

    def create_and_delete_book():
        b = init_book()
        b.save()
        b.delete()

    print(
        'Init + save to database + delete: %.3fms' % (
            timeit(create_and_delete_book, 10) * 10**3
        )
    )


def test_big_doc():
    class Contact(EmbeddedDocument):
        name = StringField()
        title = StringField()
        address = StringField()

    class Company(Document):
        name = StringField()
        contacts = ListField(EmbeddedDocumentField(Contact))

    Company.drop_collection()

    def init_company():
        return Company(
            name='MongoDB, Inc.',
            contacts=[
                Contact(
                    name='Contact %d' % x,
                    title='CEO',
                    address='Address %d' % x,
                )
                for x in range(1000)
            ]
        )

    company = init_company()
    print('Big doc to mongo: %.3fms' % (timeit(company.to_mongo, 100) * 10**3))

    print('Big doc validation: %.3fms' % (timeit(company.validate, 1000) * 10**3))

    company.save()

    def save_company():
        company._mark_as_changed('name')
        company._mark_as_changed('contacts')
        company.save()

    print('Save to database: %.3fms' % (timeit(save_company, 100) * 10**3))

    son = company.to_mongo()
    print(
        'Load from SON: %.3fms' % (
            timeit(lambda: Company._from_son(son), 100) * 10**3
        )
    )

    print(
        'Load from database: %.3fms' % (
            timeit(lambda: Company.objects[0], 100) * 10**3
        )
    )

    def create_and_delete_company():
        c = init_company()
        c.save()
        c.delete()

    print(
        'Init + save to database + delete: %.3fms' % (
            timeit(create_and_delete_company, 10) * 10**3
        )
    )


if __name__ == '__main__':
    test_basic()
    print('-' * 100)
    test_big_doc()