linesmith-core 0.1.3

Internal core engine for linesmith. No SemVer guarantee for direct dependents — depend on the `linesmith` binary or accept breakage between minor versions.
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

//! Output style segment: renders Claude Code's active `output_style.name`
//! (e.g. "default", "concise", "explanatory"). Hidden when the payload
//! doesn't carry it. Opt-in: not in the default segment list.

use super::{RenderContext, RenderResult, RenderedSegment, Segment, SegmentDefaults};
use crate::data_context::DataContext;
use crate::theme::Role;

pub struct OutputStyleSegment;

/// Informational; drops before cost (192), kept past rate-limit (96).
const PRIORITY: u8 = 160;

impl Segment for OutputStyleSegment {
    fn render(&self, ctx: &DataContext, _rc: &RenderContext) -> RenderResult {
        let Some(style) = ctx.status.output_style.as_ref() else {
            crate::lsm_debug!("output_style: status.output_style absent; hiding");
            return Ok(None);
        };
        Ok(Some(
            RenderedSegment::new(style.name.as_str()).with_role(Role::Muted),
        ))
    }

    fn defaults(&self) -> SegmentDefaults {
        SegmentDefaults::with_priority(PRIORITY)
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::input::{ModelInfo, OutputStyle, StatusContext, Tool, WorkspaceInfo};
    use std::path::PathBuf;
    use std::sync::Arc;

    fn rc() -> RenderContext {
        RenderContext::new(80)
    }

    fn ctx(output_style: Option<OutputStyle>) -> DataContext {
        DataContext::new(StatusContext {
            tool: Tool::ClaudeCode,
            model: Some(ModelInfo {
                display_name: "X".into(),
            }),
            workspace: Some(WorkspaceInfo {
                project_dir: PathBuf::from("/repo"),
                git_worktree: None,
            }),
            context_window: None,
            cost: None,
            effort: None,
            vim: None,
            output_style,
            agent_name: None,
            version: None,
            raw: Arc::new(serde_json::Value::Null),
        })
    }

    #[test]
    fn renders_named_style() {
        for name in ["default", "concise", "explanatory", "custom-flavor"] {
            assert_eq!(
                OutputStyleSegment
                    .render(
                        &ctx(Some(OutputStyle {
                            name: name.to_string(),
                        })),
                        &rc(),
                    )
                    .unwrap(),
                Some(RenderedSegment::new(name).with_role(Role::Muted)),
                "for name={name}"
            );
        }
    }

    #[test]
    fn hidden_when_absent() {
        assert_eq!(OutputStyleSegment.render(&ctx(None), &rc()).unwrap(), None);
    }

    #[test]
    fn defaults_use_expected_priority() {
        assert_eq!(OutputStyleSegment.defaults().priority, PRIORITY);
    }
}