from __future__ import unicode_literals

from common.tests.test_views import GenericViewTestCase

from ..models import Workflow, WorkflowState, WorkflowTransition

from .literals import (
    TEST_WORKFLOW_LABEL, TEST_WORKFLOW_INITIAL_STATE_LABEL,
    TEST_WORKFLOW_INITIAL_STATE_COMPLETION, TEST_WORKFLOW_STATE_LABEL,
    TEST_WORKFLOW_STATE_COMPLETION, TEST_WORKFLOW_TRANSITION_LABEL
)


class DocumentStateViewTestCase(GenericViewTestCase):
    def setUp(self):
        super(DocumentStateViewTestCase, self).setUp()

        self.login_admin_user()

    def test_creating_workflow(self):
        response = self.post(
            'document_states:setup_workflow_create',
            data={
                'label': TEST_WORKFLOW_LABEL,
            }, follow=True
        )

        self.assertEquals(response.status_code, 200)

        self.assertEquals(Workflow.objects.count(), 1)
        self.assertEquals(Workflow.objects.all()[0].label, TEST_WORKFLOW_LABEL)

    def test_delete_workflow(self):
        workflow = Workflow.objects.create(label=TEST_WORKFLOW_LABEL)

        self.assertEquals(Workflow.objects.count(), 1)
        self.assertEquals(Workflow.objects.all()[0].label, TEST_WORKFLOW_LABEL)

        response = self.post(
            'document_states:setup_workflow_delete', args=(workflow.pk,),
            follow=True
        )

        self.assertEquals(response.status_code, 200)

        self.assertEquals(Workflow.objects.count(), 0)

    def test_create_workflow_state(self):
        workflow = Workflow.objects.create(label=TEST_WORKFLOW_LABEL)

        response = self.post(
            'document_states:setup_workflow_state_create',
            args=(workflow.pk,),
            data={
                'label': TEST_WORKFLOW_STATE_LABEL,
                'completion': TEST_WORKFLOW_STATE_COMPLETION,
            }, follow=True
        )

        self.assertEquals(response.status_code, 200)

        self.assertEquals(WorkflowState.objects.count(), 1)
        self.assertEquals(
            WorkflowState.objects.all()[0].label, TEST_WORKFLOW_STATE_LABEL
        )
        self.assertEquals(
            WorkflowState.objects.all()[0].completion,
            TEST_WORKFLOW_STATE_COMPLETION
        )

    def test_delete_workflow_state(self):
        workflow = Workflow.objects.create(label=TEST_WORKFLOW_LABEL)
        workflow_state = WorkflowState.objects.create(
            workflow=workflow, label=TEST_WORKFLOW_STATE_LABEL,
            completion=TEST_WORKFLOW_STATE_COMPLETION
        )

        response = self.post(
            'document_states:setup_workflow_state_delete',
            args=(workflow_state.pk,), follow=True
        )

        self.assertEquals(response.status_code, 200)

        self.assertEquals(WorkflowState.objects.count(), 0)
        self.assertEquals(Workflow.objects.count(), 1)

    def test_create_workflow_transition(self):
        workflow = Workflow.objects.create(label=TEST_WORKFLOW_LABEL)
        workflow_initial_state = WorkflowState.objects.create(
            workflow=workflow, label=TEST_WORKFLOW_INITIAL_STATE_LABEL,
            completion=TEST_WORKFLOW_INITIAL_STATE_COMPLETION, initial=True
        )
        workflow_state = WorkflowState.objects.create(
            workflow=workflow, label=TEST_WORKFLOW_STATE_LABEL,
            completion=TEST_WORKFLOW_STATE_COMPLETION
        )

        response = self.post(
            'document_states:setup_workflow_transition_create',
            args=(workflow.pk,), data={
                'label': TEST_WORKFLOW_TRANSITION_LABEL,
                'origin_state': workflow_initial_state.pk,
                'destination_state': workflow_state.pk,
            }, follow=True
        )

        self.assertEquals(response.status_code, 200)

        self.assertEquals(WorkflowTransition.objects.count(), 1)
        self.assertEquals(
            WorkflowTransition.objects.all()[0].label,
            TEST_WORKFLOW_TRANSITION_LABEL
        )
        self.assertEquals(
            WorkflowTransition.objects.all()[0].origin_state,
            workflow_initial_state
        )
        self.assertEquals(
            WorkflowTransition.objects.all()[0].destination_state,
            workflow_state
        )

    def test_delete_workflow_transition(self):
        workflow = Workflow.objects.create(label=TEST_WORKFLOW_LABEL)
        workflow_initial_state = WorkflowState.objects.create(
            workflow=workflow, label=TEST_WORKFLOW_INITIAL_STATE_LABEL,
            completion=TEST_WORKFLOW_INITIAL_STATE_COMPLETION, initial=True
        )
        workflow_state = WorkflowState.objects.create(
            workflow=workflow, label=TEST_WORKFLOW_STATE_LABEL,
            completion=TEST_WORKFLOW_STATE_COMPLETION
        )
        workflow_transition = WorkflowTransition.objects.create(
            workflow=workflow, label=TEST_WORKFLOW_TRANSITION_LABEL,
            origin_state=workflow_initial_state,
            destination_state=workflow_state
        )

        self.assertEquals(WorkflowTransition.objects.count(), 1)

        response = self.post(
            'document_states:setup_workflow_transition_delete',
            args=(workflow_transition.pk,), follow=True
        )

        self.assertEquals(response.status_code, 200)

        self.assertEquals(WorkflowState.objects.count(), 2)
        self.assertEquals(Workflow.objects.count(), 1)
        self.assertEquals(WorkflowTransition.objects.count(), 0)