1use std::ops::Range;
 2use tree_sitter::{Query, QueryMatch};
 3
 4use crate::MigrationPatterns;
 5use crate::patterns::SETTINGS_NESTED_KEY_VALUE_PATTERN;
 6
 7pub const SETTINGS_PATTERNS: MigrationPatterns = &[(
 8    SETTINGS_NESTED_KEY_VALUE_PATTERN,
 9    rename_restore_on_startup_values,
10)];
11
12fn rename_restore_on_startup_values(
13    contents: &str,
14    mat: &QueryMatch,
15    query: &Query,
16) -> Option<(Range<usize>, String)> {
17    if !is_restore_on_startup_setting(contents, mat, query) {
18        return None;
19    }
20
21    let setting_value_ix = query.capture_index_for_name("setting_value")?;
22    let setting_value_range = mat
23        .nodes_for_capture_index(setting_value_ix)
24        .next()?
25        .byte_range();
26    let setting_value = contents.get(setting_value_range.clone())?;
27
28    // The value includes quotes, so we check for the quoted string
29    let new_value = match setting_value.trim() {
30        "\"none\"" => "\"empty_tab\"",
31        "\"welcome\"" => "\"launchpad\"",
32        _ => return None,
33    };
34
35    Some((setting_value_range, new_value.to_string()))
36}
37
38fn is_restore_on_startup_setting(contents: &str, mat: &QueryMatch, query: &Query) -> bool {
39    // Check that the parent key is "workspace" (since restore_on_startup is under workspace settings)
40    // Actually, restore_on_startup can be at the root level too, so we need to handle both cases
41    // The SETTINGS_NESTED_KEY_VALUE_PATTERN captures parent_key and setting_name
42
43    let setting_name_ix = match query.capture_index_for_name("setting_name") {
44        Some(ix) => ix,
45        None => return false,
46    };
47    let setting_name_range = match mat.nodes_for_capture_index(setting_name_ix).next() {
48        Some(node) => node.byte_range(),
49        None => return false,
50    };
51    contents.get(setting_name_range) == Some("restore_on_startup")
52}