63 lines
1.5 KiB
Rust
63 lines
1.5 KiB
Rust
use crate::{CurrentTaskInfo, Task};
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use std::cmp::Ordering;
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use std::io::Write;
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use std::path::PathBuf;
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#[derive(clap::Args)]
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pub struct Args {
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idx: usize,
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#[clap(subcommand)]
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priority: Priority,
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}
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#[derive(clap::Subcommand)]
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pub enum Priority {
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Before { idx: usize },
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After { idx: usize },
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}
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pub struct Request {
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pub args: Args,
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pub tasks: Vec<Task>,
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pub current_task_info: Option<CurrentTaskInfo>,
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pub tasks_file_path: PathBuf,
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}
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pub fn execute(req: Request) {
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if req.current_task_info.is_some() {
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panic!("You can change priority only when you don't have an active task, yet");
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}
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let target_idx = req.args.idx;
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if target_idx == 0 || target_idx > req.tasks.len() {
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panic!("invalid index");
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}
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let idx = match req.args.priority {
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Priority::Before { idx } | Priority::After { idx } => match target_idx.cmp(&idx) {
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Ordering::Equal => return,
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Ordering::Less => idx - 1,
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Ordering::Greater => idx,
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},
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};
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if idx == 0 || idx > req.tasks.len() {
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panic!("invalid index");
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}
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let target = req.tasks.remove(target_idx - 1);
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match req.args.priority {
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Priority::Before { .. } => {
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req.tasks.insert(idx - 1, target);
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}
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Priority::After { .. } => {
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req.tasks.insert(idx, target);
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}
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}
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let mut file = std::fs::File::create(&req.tasks_file_path).unwrap();
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file.write_all(&serde_json::to_vec(&req.tasks).unwrap())
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.unwrap();
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}
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