# -*- coding: utf-8 -*-
# This file is part of Tryton.  The COPYRIGHT file at the top level of
# this repository contains the full copyright notices and license terms.
import datetime
import unittest
from itertools import combinations

from trytond.ir.exceptions import TriggerConditionError
from trytond.model.exceptions import SQLConstraintError
from trytond.pool import Pool
from trytond.pyson import Eval, PYSONEncoder
from trytond.tests.test_tryton import activate_module, with_transaction
from trytond.tests.trigger import TRIGGER_LOGS
from trytond.transaction import Transaction


class TriggerTestCase(unittest.TestCase):
    'Test Trigger'

    @classmethod
    def setUpClass(cls):
        activate_module('tests')

    def setUp(self):
        TRIGGER_LOGS.clear()

    def run_tasks(self):
        pool = Pool()
        Queue = pool.get('ir.queue')
        transaction = Transaction()
        while transaction.tasks:
            task = Queue(transaction.tasks.pop())
            task.run()

    @with_transaction()
    def test_constraints(self):
        'Test constraints'
        pool = Pool()
        Model = pool.get('ir.model')
        Trigger = pool.get('ir.trigger')
        transaction = Transaction()

        model, = Model.search([
                ('model', '=', 'test.triggered'),
                ])

        values = {
            'name': 'Test',
            'model': model.id,
            'on_time': True,
            'condition': 'true',
            'action': 'test.trigger_action|trigger',
            }
        self.assertTrue(Trigger.create([values]))

        transaction.rollback()

        # on_exclusive
        for i in range(1, 4):
            for combination in combinations(
                    ['create', 'write', 'delete'], i):
                combination_values = values.copy()
                for mode in combination:
                    combination_values['on_%s' % mode] = True
                self.assertRaises(SQLConstraintError, Trigger.create,
                    [combination_values])
                transaction.rollback()

        # check_condition
        condition_values = values.copy()
        condition_values['condition'] = '='
        self.assertRaises(TriggerConditionError, Trigger.create,
            [condition_values])
        transaction.rollback()

        # Restart the cache on the get_triggers method of ir.trigger
        Trigger._get_triggers_cache.clear()

    @with_transaction()
    def test_on_create(self):
        'Test on_create'
        pool = Pool()
        Model = pool.get('ir.model')
        Trigger = pool.get('ir.trigger')
        Triggered = pool.get('test.triggered')

        model, = Model.search([
                ('model', '=', 'test.triggered'),
                ])

        trigger, = Trigger.create([{
                    'name': 'Test',
                    'model': model.id,
                    'on_create': True,
                    'condition': 'true',
                    'action': 'test.trigger_action|trigger',
                    }])

        triggered, = Triggered.create([{
                    'name': 'Test',
                    }])

        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        # Trigger with condition
        condition = PYSONEncoder().encode(
            Eval('self', {}).get('name') == 'Bar')
        Trigger.write([trigger], {
                'condition': condition,
                })

        # Matching condition
        triggered, = Triggered.create([{
                    'name': 'Bar',
                    }])
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        # Non matching condition
        triggered, = Triggered.create([{
                    'name': 'Foo',
                    }])
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [])

        # With limit number
        Trigger.write([trigger], {
                'condition': 'true',
                'limit_number': 1,
                })
        triggered, = Triggered.create([{
                    'name': 'Test',
                    }])
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        # With minimum delay
        Trigger.write([trigger], {
                'limit_number': 0,
                'minimum_time_delay': datetime.timedelta(hours=1),
                })
        triggered, = Triggered.create([{
                    'name': 'Test',
                    }])
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        # Restart the cache on the get_triggers method of ir.trigger
        Trigger._get_triggers_cache.clear()

    @with_transaction()
    def test_on_write(self):
        'Test on_write'
        pool = Pool()
        Model = pool.get('ir.model')
        Trigger = pool.get('ir.trigger')
        TriggerLog = pool.get('ir.trigger.log')
        Triggered = pool.get('test.triggered')

        model, = Model.search([
                ('model', '=', 'test.triggered'),
                ])

        trigger, = Trigger.create([{
                    'name': 'Test',
                    'model': model.id,
                    'on_write': True,
                    'condition': 'true',
                    'action': 'test.trigger_action|trigger',
                    }])

        triggered, = Triggered.create([{
                    'name': 'Test',
                    }])

        Triggered.write([triggered], {
                'name': 'Foo',
                })
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [])

        # Trigger with condition
        condition = PYSONEncoder().encode(
            Eval('self', {}).get('name') == 'Bar')
        Trigger.write([trigger], {
                'condition': condition,
                })

        # Matching condition
        Triggered.write([triggered], {
                'name': 'Bar',
                })
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        # No change in condition
        Triggered.write([triggered], {
                'name': 'Bar',
                })
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [])

        # Different change in condition
        Triggered.write([triggered], {
                'name': 'Foo',
                })
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [])

        # With limit number
        condition = PYSONEncoder().encode(
            Eval('self', {}).get('name') == 'Bar')
        Trigger.write([trigger], {
                'condition': condition,
                'limit_number': 1,
                })
        triggered, = Triggered.create([{
                    'name': 'Foo',
                    }])
        Triggered.write([triggered], {
                'name': 'Bar',
                })
        Triggered.write([triggered], {
                'name': 'Foo',
                })
        Triggered.write([triggered], {
                'name': 'Bar',
                })
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        # With minimum delay
        Trigger.write([trigger], {
                'limit_number': 0,
                'minimum_time_delay': datetime.timedelta.max,
                })
        triggered, = Triggered.create([{
                    'name': 'Foo',
                    }])
        for name in ('Bar', 'Foo', 'Bar'):
            Triggered.write([triggered], {
                    'name': name,
                    })
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        Trigger.write([trigger], {
                'minimum_time_delay': datetime.timedelta(seconds=1),
                })
        triggered, = Triggered.create([{
                    'name': 'Foo',
                    }])
        for name in ('Bar', 'Foo'):
            Triggered.write([triggered], {
                'name': name,
                })
            self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()
        Transaction().trigger_records.clear()

        # Make time pass by moving back in time the log creation
        trigger_log = TriggerLog.__table__()
        cursor = Transaction().connection.cursor()
        cursor.execute(*trigger_log.update(
                [trigger_log.create_date],
                [datetime.datetime.now() - datetime.timedelta(days=1)],
                where=trigger_log.record_id == triggered.id))

        Triggered.write([triggered], {
                'name': 'Bar',
                })
        self.run_tasks()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        # Restart the cache on the get_triggers method of ir.trigger
        Trigger._get_triggers_cache.clear()

    @with_transaction()
    def test_on_delete(self):
        'Test on_delete'
        pool = Pool()
        Model = pool.get('ir.model')
        Trigger = pool.get('ir.trigger')
        Triggered = pool.get('test.triggered')
        TriggerLog = pool.get('ir.trigger.log')

        model, = Model.search([
                ('model', '=', 'test.triggered'),
                ])

        triggered, = Triggered.create([{
                    'name': 'Test',
                    }])

        trigger, = Trigger.create([{
                    'name': 'Test',
                    'model': model.id,
                    'on_delete': True,
                    'condition': 'true',
                    'action': 'test.trigger_action|trigger',
                    }])

        Triggered.delete([triggered])
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()
        Transaction().delete = {}

        # Trigger with condition
        condition = PYSONEncoder().encode(
            Eval('self', {}).get('name') == 'Bar')
        Trigger.write([trigger], {
                'condition': condition,
                })

        triggered, = Triggered.create([{
                    'name': 'Bar',
                    }])

        # Matching condition
        Triggered.delete([triggered])
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()
        Transaction().delete = {}

        triggered, = Triggered.create([{
                    'name': 'Foo',
                    }])

        # Non matching condition
        Triggered.delete([triggered])
        self.assertEqual(TRIGGER_LOGS, [])
        Transaction().delete = {}

        triggered, = Triggered.create([{
                    'name': 'Test',
                    }])

        # With limit number
        Trigger.write([trigger], {
                'condition': 'true',
                'limit_number': 1,
                })
        Triggered.delete([triggered])
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()
        Transaction().delete = {}
        # Delete trigger logs because SQLite reuse the same triggered_id
        TriggerLog.delete(TriggerLog.search([
                    ('trigger', '=', trigger.id),
                    ]))

        triggered, = Triggered.create([{
                    'name': 'Test',
                    }])

        # With minimum delay
        Trigger.write([trigger], {
                'limit_number': 0,
                'minimum_time_delay': datetime.timedelta(hours=1),
                })
        Triggered.delete([triggered])
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()
        Transaction().delete = {}

        # Restart the cache on the get_triggers method of ir.trigger
        Trigger._get_triggers_cache.clear()

    @with_transaction()
    def test_on_time(self):
        'Test on_time'
        pool = Pool()
        Model = pool.get('ir.model')
        Trigger = pool.get('ir.trigger')
        Triggered = pool.get('test.triggered')
        TriggerLog = pool.get('ir.trigger.log')

        model, = Model.search([
                ('model', '=', 'test.triggered'),
                ])

        trigger, = Trigger.create([{
                    'name': 'Test',
                    'model': model.id,
                    'on_time': True,
                    'condition': 'true',
                    'action': 'test.trigger_action|trigger',
                    }])

        triggered, = Triggered.create([{
                    'name': 'Test',
                    }])
        Trigger.trigger_time()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        # Trigger with condition
        condition = PYSONEncoder().encode(
            Eval('self', {}).get('name') == 'Bar')
        Trigger.write([trigger], {
                'condition': condition,
                })

        # Matching condition
        Triggered.write([triggered], {
                'name': 'Bar',
                })
        Trigger.trigger_time()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        # Non matching condition
        Triggered.write([triggered], {
                'name': 'Foo',
                })
        Trigger.trigger_time()
        self.assertEqual(TRIGGER_LOGS, [])

        # With limit number
        Trigger.write([trigger], {
                'condition': 'true',
                'limit_number': 1,
                })
        Trigger.trigger_time()
        Trigger.trigger_time()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()

        # Delete trigger logs of limit number test
        TriggerLog.delete(TriggerLog.search([
                    ('trigger', '=', trigger.id),
                    ]))

        # With minimum delay
        Trigger.write([trigger], {
                'limit_number': 0,
                'minimum_time_delay': datetime.timedelta.max,
                })
        Trigger.trigger_time()
        Trigger.trigger_time()
        self.assertEqual(TRIGGER_LOGS, [([triggered], trigger)])
        TRIGGER_LOGS.pop()
        Transaction().delete = {}

        # Delete trigger logs of previous minimum delay test
        TriggerLog.delete(TriggerLog.search([
                    ('trigger', '=', trigger.id),
                    ]))

        Trigger.write([trigger], {
                'minimum_time_delay': datetime.timedelta(seconds=1),
                })
        Trigger.trigger_time()

        # Make time pass by moving back in time the log creation
        trigger_log = TriggerLog.__table__()
        cursor = Transaction().connection.cursor()
        cursor.execute(*trigger_log.update(
                [trigger_log.create_date],
                [datetime.datetime.now() - datetime.timedelta(days=1)],
                where=trigger_log.record_id == triggered.id))

        Trigger.trigger_time()
        self.assertEqual(
            TRIGGER_LOGS, [([triggered], trigger), ([triggered], trigger)])
        TRIGGER_LOGS.pop()
        TRIGGER_LOGS.pop()
        Transaction().delete = {}

        # Restart the cache on the get_triggers method of ir.trigger
        Trigger._get_triggers_cache.clear()