weavr 1.0.0

Claude Code transcript exporter — beautiful, self-contained HTML and Markdown
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241

//! Per-project combined page rendering.
//!
//! Builds an askama context for `templates/project.html` listing all sessions
//! in a project with links to individual session HTML files.

use askama::Template;
use chrono::{DateTime, Utc};

/// Context for rendering a per-project `combined_transcripts.html`.
#[derive(Template)]
#[template(path = "project.html")]
pub struct ProjectContext {
    pub css: String,
    pub index_js: String,
    pub version: String,
    pub project_name: String,
    pub display_name: String,
    pub session_count: u32,
    pub message_count: u32,
    pub token_total: String,
    pub sessions: Vec<SessionCard>,
}

pub struct SessionCard {
    pub id: String,
    pub filename: String,
    pub title: String,
    pub message_count: u32,
    pub token_total: String,
    pub first_user_prompt: Option<String>,
    pub started_at: Option<String>,
    /// Human-readable relative timestamp (e.g. "2h ago", "May 24").
    pub relative_time: String,
}

/// Build a [`ProjectContext`] from session metadata.
pub fn build_context(
    css: String,
    project_name: String,
    display_name: String,
    sessions: Vec<super::ProjectSessionData>,
) -> ProjectContext {
    let session_count = sessions.len() as u32;
    let message_count: u32 = sessions.iter().map(|s| s.message_count).sum();
    let total_tokens: u64 = sessions.iter().map(|s| s.total_tokens).sum();

    let mut sorted_sessions = sessions;
    // Newest first: ISO timestamps sort lexicographically, so reverse order works.
    // Sessions with no timestamp fall to the end.
    sorted_sessions.sort_by(|a, b| {
        b.started_at.as_deref().unwrap_or("").cmp(a.started_at.as_deref().unwrap_or(""))
    });

    let session_cards: Vec<SessionCard> = sorted_sessions
        .into_iter()
        .map(|s| {
            let relative_time = s
                .started_at
                .as_deref()
                .map(format_relative_time)
                .unwrap_or_else(|| "—".to_string());
            SessionCard {
                filename: format!("{}.html", s.id),
                title: s.title.unwrap_or_else(|| s.id.clone()),
                id: s.id,
                message_count: s.message_count,
                token_total: format_token_count(s.total_tokens),
                first_user_prompt: s.first_user_prompt,
                started_at: s.started_at,
                relative_time,
            }
        })
        .collect();

    ProjectContext {
        css,
        index_js: crate::assets::INDEX_JS.to_string(),
        version: env!("CARGO_PKG_VERSION").to_string(),
        project_name,
        display_name,
        session_count,
        message_count,
        token_total: format_token_count(total_tokens),
        sessions: session_cards,
    }
}

fn format_token_count(n: u64) -> String {
    if n >= 1_000_000 {
        format!("{:.1}M", n as f64 / 1_000_000.0)
    } else if n >= 1_000 {
        format!("{:.1}k", n as f64 / 1_000.0)
    } else {
        n.to_string()
    }
}

/// Format an ISO-8601 timestamp as a human-readable relative time.
///
/// - `< 1m ago` for under a minute
/// - `Xm ago` for under an hour
/// - `Xh ago` for under 24 hours
/// - `Mon DD` for older dates
pub(crate) fn format_relative_time(iso: &str) -> String {
    let ts = match DateTime::parse_from_rfc3339(iso) {
        Ok(dt) => dt.with_timezone(&Utc),
        Err(_) => return "—".to_string(),
    };

    let now = Utc::now();
    let dur = now.signed_duration_since(ts);

    if dur.num_minutes() < 1 {
        "< 1m ago".to_string()
    } else if dur.num_hours() < 1 {
        format!("{}m ago", dur.num_minutes())
    } else if dur.num_days() < 1 {
        format!("{}h ago", dur.num_hours())
    } else {
        ts.format("%b %d").to_string()
    }
}

// ---------------------------------------------------------------------------
// Tests
// ---------------------------------------------------------------------------

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn build_project_context_is_self_contained() {
        let css = crate::assets::CSS.to_string();
        let ctx = build_context(
            css.clone(),
            "my-app".into(),
            "my-app".into(),
            vec![super::super::ProjectSessionData {
                id: "sess-1".into(),
                title: Some("Test Chat".into()),
                message_count: 12,
                total_tokens: 3400,
                first_user_prompt: Some("Help me build an app".into()),
                started_at: Some("2025-06-15T10:30:00Z".into()),
            }],
        );
        let html = ctx.render().expect("template should render");
        assert!(html.contains("<!DOCTYPE html>"));
        assert!(html.contains("my-app"));
        assert!(html.contains("sess-1.html"));
        assert!(html.contains("Help me build an app"));
        // Toolbar elements.
        assert!(html.contains("index-search-input"), "search input should be present");
        assert!(html.contains("Search sessions"), "search placeholder should be present");
        assert!(html.contains("date-chip"), "date filter chips should be present");
        // Data attributes for filtering.
        assert!(html.contains("data-started-at"), "started-at data attr for date filter");
        assert!(html.contains("data-prompt"), "prompt data attr for search");
        assert!(html.contains("data-title"), "title data attr for search");
        // Relative time should be present (the exact value depends on now,
        // but it should contain the expected markers).
        assert!(
            html.contains("h ago")
                || html.contains("m ago")
                || html.contains("Jun")
                || html.contains("—"),
            "relative time should be present"
        );
        assert!(!html.contains("http://"));
        assert!(!html.contains("https://"));
    }

    #[test]
    fn sessions_sorted_newest_first() {
        let css = String::new();
        let ctx = build_context(
            css,
            "proj".into(),
            "proj".into(),
            vec![
                super::super::ProjectSessionData {
                    id: "old-sess".into(),
                    title: None,
                    message_count: 1,
                    total_tokens: 0,
                    first_user_prompt: None,
                    started_at: Some("2025-01-01T00:00:00Z".into()),
                },
                super::super::ProjectSessionData {
                    id: "new-sess".into(),
                    title: None,
                    message_count: 1,
                    total_tokens: 0,
                    first_user_prompt: None,
                    started_at: Some("2025-06-01T00:00:00Z".into()),
                },
                super::super::ProjectSessionData {
                    id: "no-ts-sess".into(),
                    title: None,
                    message_count: 1,
                    total_tokens: 0,
                    first_user_prompt: None,
                    started_at: None,
                },
            ],
        );
        let ids: Vec<&str> = ctx.sessions.iter().map(|s| s.id.as_str()).collect();
        assert_eq!(ids[0], "new-sess", "newest session must be first");
        assert_eq!(ids[1], "old-sess", "older session must be second");
        assert_eq!(ids[2], "no-ts-sess", "session with no timestamp must be last");
    }

    #[test]
    fn format_relative_time_returns_dash_on_parse_failure() {
        assert_eq!(format_relative_time("not-a-date"), "—");
    }

    #[test]
    fn format_relative_time_handles_recent_timestamp() {
        // A timestamp just a few seconds ago should produce "< 1m ago".
        let recent = chrono::Utc::now() - chrono::Duration::seconds(30);
        let iso = recent.to_rfc3339();
        let result = format_relative_time(&iso);
        assert!(
            result.contains("ago"),
            "expected relative time for recent timestamp, got: {result}"
        );
    }

    #[test]
    fn format_relative_time_handles_old_timestamp() {
        // A timestamp months ago should produce a "Mon DD" format.
        let old = chrono::Utc::now() - chrono::Duration::days(60);
        let iso = old.to_rfc3339();
        let result = format_relative_time(&iso);
        // Should be in "%b %d" format, not "Xh ago" or "—".
        assert!(!result.contains("ago"), "old timestamp should not say 'ago', got: {result}");
        assert_ne!(result, "—", "old timestamp should not be dash");
    }
}