celestial_pointing/commands/
indat.rs

1use super::{Command, CommandOutput};
2use crate::error::Result;
3use crate::observation::{MountType, PierSide};
4use crate::parser::parse_indat;
5use crate::session::Session;
6
7pub struct Indat;
8
9impl Command for Indat {
10    fn name(&self) -> &str {
11        "INDAT"
12    }
13    fn description(&self) -> &str {
14        "Load observations from INDAT file"
15    }
16
17    fn execute(&self, session: &mut Session, args: &[&str]) -> Result<CommandOutput> {
18        if args.is_empty() {
19            return Err(crate::error::Error::Parse(
20                "INDAT requires a filename".into(),
21            ));
22        }
23        let content = std::fs::read_to_string(args[0]).map_err(crate::error::Error::Io)?;
24        let indat = parse_indat(&content)?;
25        let summary = format_summary(&indat);
26        session.load_indat(indat);
27        Ok(CommandOutput::Text(summary))
28    }
29}
30
31fn format_summary(indat: &crate::observation::IndatFile) -> String {
32    let mount = match indat.mount_type {
33        MountType::GermanEquatorial => "German Equatorial",
34        MountType::ForkEquatorial => "Fork Equatorial",
35        MountType::Altazimuth => "Altazimuth",
36    };
37    let lat = format_dms(indat.site.latitude.degrees());
38    let n = indat.observations.len();
39    let east = indat
40        .observations
41        .iter()
42        .filter(|o| o.pier_side == PierSide::East)
43        .count();
44    let west = indat
45        .observations
46        .iter()
47        .filter(|o| o.pier_side == PierSide::West)
48        .count();
49    format!(
50        "{} observations loaded\n  Mount:    {}\n  Latitude: {}\n  Pier:     {} east, {} west",
51        n, mount, lat, east, west,
52    )
53}
54
55fn format_dms(deg: f64) -> String {
56    let sign = if deg < 0.0 { "-" } else { "+" };
57    let total = deg.abs();
58    let d = total as i32;
59    let rem = (total - d as f64) * 60.0;
60    let m = rem as i32;
61    let s = (rem - m as f64) * 60.0;
62    format!("{}{}d {:02}' {:02}\"", sign, d, m, s as i32)
63}
celestial_pointing/commands/indat.rs

celestial_pointing/commands/
indat.rs
