use gitea_pr_review::model::{
    CommentItem, CommentThread, CommitItem, DiffStat, FileStat, PrMeta, PrReviewDocument,
    ReviewItem,
};
use gitea_pr_review::render::markdown::render_markdown;

#[test]
fn render_markdown_includes_expected_sections_and_preserves_comment_markdown() {
    let doc = PrReviewDocument {
        version: "v1".into(),
        meta: PrMeta {
            repo: "org/repo".into(),
            pr_index: 7,
            title: "Fix parser".into(),
            description: Some("PR body".into()),
            fetched_at: "2026-04-08T12:34:56Z".into(),
            state: "open".into(),
            author: "alice".into(),
            base_branch: "main".into(),
            head_branch: "feat/a".into(),
            created_at: "2026-04-08T10:00:00Z".into(),
            updated_at: "2026-04-08T11:00:00Z".into(),
            merged_at: None,
        },
        commits: vec![CommitItem {
            sha: "abcdef0123456789".into(),
            short_sha: "abcdef0".into(),
            title: "fix: parser".into(),
            author: "alice".into(),
            date: "2026-04-08T10:10:00Z".into(),
        }],
        diff_stat: DiffStat {
            files_changed: 1,
            additions: 3,
            deletions: 1,
            files: vec![FileStat {
                path: "src/main.rs".into(),
                additions: 3,
                deletions: 1,
            }],
        },
        reviews: vec![ReviewItem {
            id: 1,
            state: "COMMENT".into(),
            reviewer: "bob".into(),
            submitted_at: Some("2026-04-08T11:00:00Z".into()),
        }],
        threads: vec![CommentThread {
            thread_id: "t1".into(),
            file_path: Some("src/main.rs".into()),
            line: Some(9),
            root_comment: CommentItem {
                id: 11,
                review_id: Some(1),
                user: "bob".into(),
                created_at: "2026-04-08T11:01:00Z".into(),
                path: Some("src/main.rs".into()),
                line: Some(9),
                body: "```rs\nlet x = 1;\n```".into(),
            },
            replies: vec![CommentItem {
                id: 12,
                review_id: Some(1),
                user: "alice".into(),
                created_at: "2026-04-08T11:02:00Z".into(),
                path: Some("src/main.rs".into()),
                line: Some(12),
                body: "looks good".into(),
            }],
        }],
    };

    let md = render_markdown(&doc);

    assert!(md.contains("# org/repo `#7` Fix parser"));
    assert!(md.contains("## Metadata"));
    assert!(md.contains("> version: v1"));
    assert!(md.contains("> fetched at: 2026-04-08T12:34:56Z"));
    assert!(md.contains("## Commits"));
    assert!(md.contains("## Diff Stat"));
    assert!(md.contains("> 编号规则：Review `<pr>.<review>`；Comment `<pr>.<review>.<comment>`；Reply `<pr>.<review>.<comment>.<reply>`"));
    assert!(md.contains("PR body"));
    assert!(md.contains("## Review 7.1 (COMMENT)"));
    assert!(md.contains("### Comment 7.1.1"));
    assert!(md.contains("src/main.rs:9"));
    assert!(md.contains("### Reply 7.1.1.1"));
    assert!(md.contains("src/main.rs:12"));
    let review_pos = md.find("## Review 7.1 (COMMENT)").unwrap();
    let comment_pos = md.find("### Comment 7.1.1").unwrap();
    assert!(comment_pos > review_pos);
    assert!(!md.contains("## Comments (No Review)"));
    assert!(md.contains("````md"));
    assert!(md.contains("```rs\nlet x = 1;\n```"));
    assert!(md.contains("looks good"));
}

#[test]
fn render_markdown_uses_minimal_fence_for_plain_text() {
    let body = "plain text";
    let doc = PrReviewDocument {
        version: "v1".into(),
        meta: PrMeta {
            repo: "org/repo".into(),
            pr_index: 1,
            title: "T".into(),
            description: None,
            fetched_at: "2026-04-08T12:34:56Z".into(),
            state: "open".into(),
            author: "alice".into(),
            base_branch: "main".into(),
            head_branch: "feat".into(),
            created_at: "2026-04-08T10:00:00Z".into(),
            updated_at: "2026-04-08T10:00:00Z".into(),
            merged_at: None,
        },
        commits: vec![],
        diff_stat: DiffStat {
            files_changed: 0,
            additions: 0,
            deletions: 0,
            files: vec![],
        },
        reviews: vec![],
        threads: vec![CommentThread {
            thread_id: "t1".into(),
            file_path: None,
            line: None,
            root_comment: CommentItem {
                id: 1,
                review_id: None,
                user: "bob".into(),
                created_at: "2026-04-08T11:00:00Z".into(),
                path: None,
                line: None,
                body: body.into(),
            },
            replies: vec![],
        }],
    };

    let md = render_markdown(&doc);
    assert!(md.contains("```md\nplain text\n```"));
}