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

use std::fs;

use log::{debug, trace};

use crate::{error::ThermiteError, LocalIndex, Mod, ModVersion};

use super::{actions, Ctx};

/// Download and install updated versions of provided mods. Updates the `LocalIndex` and clears old versions from the cache as well.
/// # Params
/// * ctx - the current context
/// * outdated - the mods to update
/// * target - the index file to target
pub async fn update(
    ctx: &mut Ctx,
    outdated: &[ModVersion],
    target: &mut LocalIndex,
) -> Result<(), ThermiteError> {
    let mut downloaded = vec![];
    for base in outdated {
        let name = &base.name;
        let url = &base.url;
        let path = ctx
            .dirs
            .cache_dir()
            .join(format!("{}_{}.zip", name, base.version));
        match actions::download_file(url, path).await {
            Ok(f) => downloaded.push(f),
            Err(e) => eprintln!("{}", e),
        }
    }

    for f in downloaded.into_iter() {
        let mut pkg = actions::install_mod(&f, target.path().as_ref()).unwrap();
        ctx.cache.clean(&pkg.package_name, &pkg.version)?;
        let dir = target.parent_dir();
        target.mods.entry(pkg.package_name).and_modify(|inst| {
            inst.version = pkg.version;
            //Don't know if sorting is needed here but seems like a good assumption
            inst.mods
                .sort_by(|a, b| a.name.to_lowercase().cmp(&b.name.to_lowercase()));
            pkg.mods
                .sort_by(|a, b| a.name.to_lowercase().cmp(&b.name.to_lowercase()));

            for (curr, new) in inst.mods.iter().zip(pkg.mods.iter()) {
                trace!("current mod: {:#?} | new mod: {:#?}", curr, new);
                if curr.disabled() {
                    fs::remove_dir_all(dir.join(&curr.path)).unwrap();
                    debug!(
                        "Moving mod from {} to {}",
                        new.path.display(),
                        curr.path.display()
                    );
                    fs::rename(dir.join(&new.path), dir.join(&curr.path)).unwrap_or_else(|e| {
                        debug!("Unable to move sub-mod to old path");
                        debug!("{}", e);
                    });
                }
            }

            debug!("Updated {}", inst.package_name);
        });
    }

    Ok(())
}

/// Finds mods in the `LocalIndex` whose version doesn't match the provided remote index
/// # Params
/// * index - a list of `Mod`s. Should be retreived from thermite::update_index.
/// * target - the `LocalIndex` to check against
pub async fn get_outdated(index: &[Mod], target: &LocalIndex) -> Vec<ModVersion> {
    index
        .iter()
        .filter_map(|e| {
            if target
                .mods
                .iter()
                .any(|(n, i)| n.trim() == e.name.trim() && i.version.trim() != e.latest.trim())
            {
                e.versions.get(&e.latest)
            } else {
                None
            }
        })
        .cloned()
        .collect()
}