1use anyhow::Result;
 2use std::path::Path;
 3
 4use crate::cli::DepAction;
 5use crate::db;
 6
 7pub fn run(root: &Path, action: &DepAction, json: bool) -> Result<()> {
 8    let conn = db::open(root)?;
 9
10    match action {
11        DepAction::Add { child, parent } => {
12            conn.execute(
13                "INSERT OR IGNORE INTO blockers (task_id, blocker_id) VALUES (?1, ?2)",
14                [child, parent],
15            )?;
16            conn.execute(
17                "UPDATE tasks SET updated = ?1 WHERE id = ?2",
18                rusqlite::params![db::now_utc(), child],
19            )?;
20            if json {
21                println!("{}", serde_json::json!({"child": child, "blocker": parent}));
22            } else {
23                let c = crate::color::stdout_theme();
24                println!(
25                    "{}{child}{} blocked by {}{parent}{}",
26                    c.green, c.reset, c.yellow, c.reset
27                );
28            }
29        }
30        DepAction::Rm { child, parent } => {
31            conn.execute(
32                "DELETE FROM blockers WHERE task_id = ?1 AND blocker_id = ?2",
33                [child, parent],
34            )?;
35            conn.execute(
36                "UPDATE tasks SET updated = ?1 WHERE id = ?2",
37                rusqlite::params![db::now_utc(), child],
38            )?;
39            if !json {
40                let c = crate::color::stdout_theme();
41                println!(
42                    "{}{child}{} no longer blocked by {}{parent}{}",
43                    c.green, c.reset, c.yellow, c.reset
44                );
45            }
46        }
47        DepAction::Tree { id } => {
48            println!("{id}");
49            let mut stmt = conn.prepare("SELECT id FROM tasks WHERE parent = ?1 ORDER BY id")?;
50            let children: Vec<String> = stmt
51                .query_map([id], |r| r.get(0))?
52                .collect::<rusqlite::Result<_>>()?;
53            for child in &children {
54                println!("  {child}");
55            }
56        }
57    }
58
59    Ok(())
60}