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| 1 | +# Feature Specification: Commento Comment System Integration |
| 2 | + |
| 3 | +**Feature Branch**: `002-add-commento-support` |
| 4 | +**Created**: 2025-11-27 |
| 5 | +**Status**: Draft |
| 6 | +**Input**: User description: "add commento support to my blog for user comments, they recommend this snippet: <script defer src="https://cdn.commento.io/js/commento.js"></script><div id="commento"></div> - Docs at https://docs.commento.io/configuration/frontend/" |
| 7 | + |
| 8 | +## User Scenarios & Testing *(mandatory)* |
| 9 | + |
| 10 | +### User Story 1 - Reader Leaves Comment (Priority: P1) |
| 11 | + |
| 12 | +A blog reader wants to share their thoughts, ask questions, or provide feedback on a blog post they've just read. They can leave a comment directly on the post page without leaving the site or using external platforms. |
| 13 | + |
| 14 | +**Why this priority**: This is the core value proposition of adding comments - enabling reader engagement and community building around blog content. Without this, the feature provides no value. |
| 15 | + |
| 16 | +**Independent Test**: Navigate to any published blog post, scroll to the comments section at the bottom of the post, and successfully post a comment that appears immediately on the page. |
| 17 | + |
| 18 | +**Acceptance Scenarios**: |
| 19 | + |
| 20 | +1. **Given** a reader is viewing a published blog post, **When** they scroll to the bottom of the page, **Then** they see a comment section with a text input area |
| 21 | +2. **Given** a reader has written a comment, **When** they submit it, **Then** the comment appears in the comment thread immediately |
| 22 | +3. **Given** a reader is viewing a post with existing comments, **When** the page loads, **Then** all approved comments are visible below the post content |
| 23 | + |
| 24 | +--- |
| 25 | + |
| 26 | +### User Story 2 - Reader Engages with Existing Comments (Priority: P2) |
| 27 | + |
| 28 | +A blog reader wants to participate in ongoing discussions by replying to other comments, voting on helpful comments, or reading comment threads to understand community perspectives. |
| 29 | + |
| 30 | +**Why this priority**: Comment engagement features increase the value of the comment system beyond simple feedback collection, fostering community discussion. However, basic commenting (P1) must work first. |
| 31 | + |
| 32 | +**Independent Test**: Navigate to a post with existing comments, reply to a specific comment, and verify the reply appears nested under the original comment. |
| 33 | + |
| 34 | +**Acceptance Scenarios**: |
| 35 | + |
| 36 | +1. **Given** a post has existing comments, **When** a reader clicks "Reply" on a specific comment, **Then** a reply input appears nested under that comment |
| 37 | +2. **Given** a reader submits a reply, **When** the submission completes, **Then** the reply appears indented under the parent comment |
| 38 | +3. **Given** multiple comment threads exist, **When** a reader views the page, **Then** comment hierarchies are visually clear and easy to follow |
| 39 | + |
| 40 | +--- |
| 41 | + |
| 42 | +### User Story 3 - Site Appearance Consistency (Priority: P3) |
| 43 | + |
| 44 | +Blog readers experience a visually cohesive site where the comment section matches the overall design aesthetic of the blog, using consistent fonts, colors, and styling. |
| 45 | + |
| 46 | +**Why this priority**: Visual consistency improves professional appearance and user trust, but doesn't affect core commenting functionality. Can be refined post-launch. |
| 47 | + |
| 48 | +**Independent Test**: View the comment section on multiple blog posts and verify it uses the same fonts, color scheme, and visual style as the rest of the blog. |
| 49 | + |
| 50 | +**Acceptance Scenarios**: |
| 51 | + |
| 52 | +1. **Given** a reader views the comment section, **When** they compare it to the blog's main content, **Then** fonts, colors, and spacing are visually consistent |
| 53 | +2. **Given** the blog uses specific brand colors, **When** the comment section loads, **Then** it uses those same brand colors for buttons and highlights |
| 54 | +3. **Given** the blog has a specific design aesthetic, **When** readers view comments, **Then** the comment interface feels like a natural part of the site |
| 55 | + |
| 56 | +--- |
| 57 | + |
| 58 | +### Edge Cases |
| 59 | + |
| 60 | +- What happens when a reader tries to submit an empty comment? |
| 61 | +- How does the system handle very long comments (e.g., 10,000 characters)? |
| 62 | +- What happens if the Commento service is temporarily unavailable when a page loads? |
| 63 | +- How are comments displayed when JavaScript is disabled in the browser? |
| 64 | +- What happens when a reader navigates between multiple blog posts (is comment state preserved)? |
| 65 | + |
| 66 | +## Requirements *(mandatory)* |
| 67 | + |
| 68 | +### Functional Requirements |
| 69 | + |
| 70 | +- **FR-001**: Blog posts MUST display a comment section at the end of each post content |
| 71 | +- **FR-002**: The comment section MUST load asynchronously without blocking page rendering |
| 72 | +- **FR-003**: Readers MUST be able to submit new comments without page refresh |
| 73 | +- **FR-004**: The comment section MUST display all approved comments for the current post |
| 74 | +- **FR-005**: Comments MUST be associated with the specific blog post URL or unique identifier |
| 75 | +- **FR-006**: The comment section MUST support threaded replies (comments nested under other comments) |
| 76 | +- **FR-007**: The comment system MUST support multiple authentication methods including anonymous comments (no login required), email-based authentication, and social login via Google, Twitter, and GitHub |
| 77 | +- **FR-008**: Comments MUST persist across page refreshes and browser sessions |
| 78 | +- **FR-009**: The comment section styling MUST be customizable to match blog design |
| 79 | +- **FR-010**: The system MUST support post-moderation where comments appear immediately upon submission and can be reviewed and removed by moderators after publication |
| 80 | + |
| 81 | +### Assumptions |
| 82 | + |
| 83 | +- Commento hosting service is already set up or will be configured separately (not part of this feature specification) |
| 84 | +- The blog uses Hugo's theme system which supports template overrides for adding custom HTML to post layouts |
| 85 | +- Blog posts are accessible via stable URLs that can serve as unique identifiers for comment threads |
| 86 | +- Readers have JavaScript enabled in their browsers (standard assumption for modern web applications) |
| 87 | +- Comment data will be hosted and managed by the Commento service, not stored locally |
| 88 | +- Default font loading from Commento CDN is acceptable unless custom styling requires otherwise |
| 89 | + |
| 90 | +## Success Criteria *(mandatory)* |
| 91 | + |
| 92 | +### Measurable Outcomes |
| 93 | + |
| 94 | +- **SC-001**: Readers can submit a comment and see it appear on the page in under 3 seconds |
| 95 | +- **SC-002**: The comment section loads and displays without blocking the main blog content from rendering |
| 96 | +- **SC-003**: 95% of readers successfully find and use the comment section without confusion (measured by comment submission attempts vs. completions) |
| 97 | +- **SC-004**: The comment section visually integrates with the blog design such that it doesn't appear as a third-party widget (subjective assessment: passes visual review) |
| 98 | +- **SC-005**: Comment threads correctly associate with their respective blog posts (no cross-post comment bleeding) |
| 99 | +- **SC-006**: The feature works across all major browsers (Chrome, Firefox, Safari, Edge) and mobile devices |
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