# addons/itsulu_blog_publisher/tests/test_blog_post_social.py
"""
Tests for:
  - SEO field population on blog.post after generation
  - models/blog_post_social.py (itsulu.blog.post.social)
  - Notification email content and recipients

RED PHASE — all tests FAIL until models and email logic exist.
"""
from unittest.mock import patch, MagicMock
from odoo.tests import TransactionCase, tagged
from .factories import BlogPublisherFactory


@tagged('post_install', '-at_install', 'itsulu_blog_publisher', 'seo')
class TestSEOPopulation(TransactionCase):
    """Verify that all SEO fields are correctly populated after blog post generation."""

    @classmethod
    def setUpClass(cls):
        super().setUpClass()
        cls.factory = BlogPublisherFactory(cls.env)
        cls.blog = cls.factory.blog(name='ITSulu Insights')

    def test_generated_post_has_non_empty_meta_title(self):
        """
        1. Behaviour: website_meta_title is set after generation
        2. ARRANGE: a blog post with SEO fields populated by factory
        3. ACT: check field
        4. ASSERT: non-empty, ≤ 60 chars
        5. FAIL reason: field population logic does not exist
        """
        # ARRANGE
        post = self.factory.blog_post(
            blog=self.blog,
            website_meta_title='AI Governance Frameworks for Enterprises 2026',
        )

        # ASSERT
        self.assertTrue(post.website_meta_title,
                        "website_meta_title must not be empty after generation")
        self.assertLessEqual(
            len(post.website_meta_title), 60,
            f"SEO title too long: {len(post.website_meta_title)} chars (max 60)"
        )

    def test_generated_post_has_non_empty_meta_description(self):
        """website_meta_description is set and ≤ 155 characters."""
        # ARRANGE
        desc = 'Learn how leading enterprises implement AI governance frameworks in 2026.'
        post = self.factory.blog_post(
            blog=self.blog,
            website_meta_description=desc,
        )

        # ASSERT
        self.assertTrue(post.website_meta_description)
        self.assertLessEqual(len(post.website_meta_description), 155)

    def test_generated_post_has_meta_keywords(self):
        """website_meta_keywords is populated with comma-separated keywords."""
        # ARRANGE
        post = self.factory.blog_post(
            blog=self.blog,
            website_meta_keywords='AI governance, enterprise AI, compliance',
        )

        # ASSERT
        self.assertTrue(post.website_meta_keywords)
        keywords = [k.strip() for k in post.website_meta_keywords.split(',')]
        self.assertGreaterEqual(len(keywords), 2,
                                "At least 2 keywords must be present")

    def test_generated_post_has_at_least_two_tags(self):
        """blog.post.tag_ids must contain at least 2 blog.tag records."""
        # ARRANGE
        tag1 = self.factory.blog_tag(name='Enterprise AI')
        tag2 = self.factory.blog_tag(name='AI Governance')
        post = self.factory.blog_post(blog=self.blog)
        post.write({'tag_ids': [(6, 0, [tag1.id, tag2.id])]})

        # ASSERT
        self.assertGreaterEqual(len(post.tag_ids), 2)

    def test_seo_title_is_not_identical_to_post_title(self):
        """
        The SEO meta title should be an optimised variant, not a verbatim copy
        of the post title (which would waste the SEO field).
        """
        # ARRANGE
        post = self.factory.blog_post(
            blog=self.blog,
            name='AI Trends 2026',
            website_meta_title='Top AI Governance Trends Reshaping Enterprises in 2026',
        )

        # ASSERT
        self.assertNotEqual(
            post.name, post.website_meta_title,
            "SEO meta title must be an optimised variant, not identical to the post title"
        )

    def test_new_tags_from_llm_are_created_automatically(self):
        """
        If the LLM returns a tag name that doesn't exist in blog.tag,
        the tag is created automatically and linked to the post.
        """
        # ARRANGE — ensure tag doesn't exist
        new_tag_name = 'BrandNewTagXYZ99'
        self.assertFalse(
            self.env['blog.tag'].search([('name', '=', new_tag_name)]),
            "Pre-condition: tag must not exist before this test"
        )

        # ACT — call the helper that creates/fetches tags by name
        tags = self.env['blog.tag'].get_or_create_tags([new_tag_name])

        # ASSERT
        self.assertTrue(tags, "get_or_create_tags() must return a non-empty recordset")
        created = self.env['blog.tag'].search([('name', '=', new_tag_name)])
        self.assertTrue(created, "The new tag must exist in the DB after get_or_create_tags()")


@tagged('post_install', '-at_install', 'itsulu_blog_publisher', 'social')
class TestBlogPostSocialModel(TransactionCase):
    """Verify the itsulu.blog.post.social model stores all platform copy correctly."""

    @classmethod
    def setUpClass(cls):
        super().setUpClass()
        cls.factory = BlogPublisherFactory(cls.env)
        cls.blog = cls.factory.blog(name='ITSulu Insights')

    def test_social_record_is_linked_one_to_one_with_blog_post(self):
        """Each blog post has at most one social record."""
        # ARRANGE
        post = self.factory.blog_post(blog=self.blog)

        # ACT
        social = self.factory.blog_post_social(blog_post=post)

        # ASSERT
        self.assertEqual(social.blog_post_id.id, post.id)

    def test_twitter_posts_stored_and_retrievable(self):
        """twitter_post_a and twitter_post_b are stored correctly."""
        # ARRANGE
        post = self.factory.blog_post(blog=self.blog)
        social = self.factory.blog_post_social(
            blog_post=post,
            twitter_post_a='80% of enterprises manage prompts manually. Read why: https://itsulu.com/blog/1',
            twitter_post_b='Manual prompt engineering = technical debt. Fix it: https://itsulu.com/blog/1',
        )

        # ASSERT
        self.assertIn('80%', social.twitter_post_a)
        self.assertIn('technical debt', social.twitter_post_b)

    def test_twitter_posts_are_within_character_limit(self):
        """X/Twitter posts (excluding URL) must be ≤ 280 chars."""
        # ARRANGE
        post = self.factory.blog_post(blog=self.blog)
        social = self.factory.blog_post_social(blog_post=post)

        # ACT — strip the URL for character count
        url = 'https://itsulu.com/blog/the-itsulu-blog-1/99'
        post_a_without_url = social.twitter_post_a.replace(url, '').strip()
        post_b_without_url = social.twitter_post_b.replace(url, '').strip()

        # ASSERT
        self.assertLessEqual(len(post_a_without_url), 280,
                             "Twitter Post A exceeds 280 character limit")
        self.assertLessEqual(len(post_b_without_url), 280,
                             "Twitter Post B exceeds 280 character limit")

    def test_mastodon_post_is_within_character_limit(self):
        """Mastodon/Fediverse post must be ≤ 500 characters."""
        post = self.factory.blog_post(blog=self.blog)
        social = self.factory.blog_post_social(blog_post=post)
        self.assertLessEqual(len(social.mastodon_post), 500)

    def test_linkedin_post_is_at_least_150_characters(self):
        """LinkedIn copy should be substantive — minimum 150 characters."""
        post = self.factory.blog_post(blog=self.blog)
        social = self.factory.blog_post_social(
            blog_post=post,
            linkedin_post=(
                'The era of manual prompt engineering is ending. '
                'Enterprises with governance frameworks report 34% higher AI satisfaction '
                'and 76% fewer hallucinations. Learn the 3 critical shifts.'
            ),
        )
        self.assertGreaterEqual(len(social.linkedin_post), 150)


@tagged('post_install', '-at_install', 'itsulu_blog_publisher', 'notification_email')
class TestNotificationEmail(TransactionCase):
    """
    Verify the post-generation notification email is sent with the correct
    structure matching the [ITSulu Insights] template in the uploaded .eml.
    """

    @classmethod
    def setUpClass(cls):
        super().setUpClass()
        cls.factory = BlogPublisherFactory(cls.env)
        cls.blog = cls.factory.blog(name='ITSulu Insights')
        cls.env['ir.config_parameter'].sudo().set_param(
            'itsulu_blog_publisher.notification_emails',
            'nicholasr@itsulu.com',
        )

    def test_notification_email_is_sent_after_auto_publish(self):
        """
        1. Behaviour: one email sent to the configured recipient when post is published
        2. ARRANGE: published post + social copy
        3. ACT: call send_notification_email() on the log or the schedule model
        4. ASSERT: mail.mail (or mail.message) created for the recipient
        5. FAIL reason: send_notification_email() does not exist
        """
        # ARRANGE
        post = self.factory.blog_post(
            blog=self.blog,
            name='Prompt Governance & AI Scaling',
            website_published=True,
            is_published=True,
        )
        social = self.factory.blog_post_social(blog_post=post)
        log = self.factory.generation_log(blog_post=post, state='success')

        mail_count_before = self.env['mail.mail'].search_count([])

        # ACT
        log.send_notification_email()

        # ASSERT
        mail_count_after = self.env['mail.mail'].search_count([])
        self.assertEqual(mail_count_after, mail_count_before + 1,
                         "Exactly one mail.mail record must be created")

        sent_mail = self.env['mail.mail'].search([], order='id desc', limit=1)
        self.assertIn('nicholasr@itsulu.com', sent_mail.email_to or sent_mail.recipient_ids.mapped('email'))

    def test_notification_email_subject_matches_expected_format(self):
        """Email subject: '[ITSulu Insights] Blog Post Published: {title}'"""
        # ARRANGE
        post = self.factory.blog_post(
            blog=self.blog,
            name='Prompt Governance & AI Scaling',
            is_published=True,
        )
        self.factory.blog_post_social(blog_post=post)
        log = self.factory.generation_log(blog_post=post, state='success')

        # ACT — render the template synchronously to check the subject
        template = self.env.ref('itsulu_blog_publisher.email_template_blog_published')
        rendered = template.generate_email(log.id, fields=['subject'])

        # ASSERT
        subject = rendered.get('subject', '')
        self.assertTrue(subject, "Rendered email subject must be non-empty")
        self.assertIn('[ITSulu Insights] Blog Post Published:', subject,
                      f"Unexpected subject: {subject}")
        self.assertIn('Prompt Governance', subject,
                      f"Subject must contain post title, got: {subject}")

    def test_notification_email_body_contains_all_social_platforms(self):
        """Email body must contain sections for X, BlueSky, Mastodon, and LinkedIn."""
        # ARRANGE
        post = self.factory.blog_post(
            blog=self.blog, name='AI Trends', is_published=True
        )
        social = self.factory.blog_post_social(
            blog_post=post,
            twitter_post_a='Twitter A copy',
            twitter_post_b='Twitter B copy',
            bluesky_post_a='BlueSky A copy',
            bluesky_post_b='BlueSky B copy',
            mastodon_post='Mastodon copy',
            linkedin_post='LinkedIn copy about AI trends in enterprise.',
        )
        log = self.factory.generation_log(blog_post=post, state='success')

        # ACT
        log.send_notification_email()

        # ASSERT — render template manually to verify social copy inclusion
        # (body_html is async-rendered, so we check the template context instead)
        template = self.env.ref(
            'itsulu_blog_publisher.email_template_blog_published',
            raise_if_not_found=False,
        )
        self.assertTrue(template, "Email template must exist")

        # Verify social platforms are enabled and have content
        self.assertTrue(social.twitter_enabled, "Twitter should be enabled")
        self.assertTrue(social.bluesky_enabled, "BlueSky should be enabled")
        self.assertTrue(social.mastodon_enabled, "Mastodon should be enabled")
        self.assertTrue(social.linkedin_enabled, "LinkedIn should be enabled")

        # Verify template renders all platform copy in the body
        template = self.env.ref('itsulu_blog_publisher.email_template_blog_published')
        rendered = template.generate_email(log.id, fields=['body_html'])
        body = rendered.get('body_html', '')
        self.assertIn('Twitter A copy', body, "Body must contain Twitter copy")
        self.assertIn('LinkedIn copy', body, "Body must contain LinkedIn copy")

    def test_notification_email_body_contains_post_url(self):
        """Email body must include a clickable link to the published post."""
        # ARRANGE
        post = self.factory.blog_post(
            blog=self.blog, name='Cloud Migration Strategies', is_published=True
        )
        social = self.factory.blog_post_social(blog_post=post)
        log = self.factory.generation_log(blog_post=post, state='success')

        # ACT
        log.send_notification_email()

        # ASSERT — render the template synchronously to check the URL appears in the body
        template = self.env.ref('itsulu_blog_publisher.email_template_blog_published')
        rendered = template.generate_email(log.id, fields=['body_html'])
        body = rendered.get('body_html', '')
        self.assertIn('itsulu.com', body, "Body must contain itsulu.com URL")

    def test_notification_email_is_not_sent_for_draft_posts(self):
        """No email is sent when the post is left as a draft (is_published=False)."""
        # ARRANGE
        post = self.factory.blog_post(
            blog=self.blog, name='Draft Post', is_published=False
        )
        self.factory.blog_post_social(blog_post=post)
        log = self.factory.generation_log(blog_post=post, state='success')

        mail_count_before = self.env['mail.mail'].search_count([])

        # ACT
        log.send_notification_email()

        # ASSERT
        mail_count_after = self.env['mail.mail'].search_count([])
        self.assertEqual(mail_count_after, mail_count_before,
                         "No email must be sent for a draft (unpublished) post")