cli: extract priority subcommand

src/cli.rs

@@ -16,6 +16,7 @@
 
 pub mod finish;
 pub mod pause;
+pub mod priority;
 pub mod start;
 pub mod status;
 
@@ -48,20 +49,10 @@ pub enum SubCommand {
     Remove {
         idx: usize,
     },
-    Priority {
-        idx: usize,
-        #[clap(subcommand)]
-        priority: Priority,
-    },
+    Priority(self::priority::Args),
     List,
     Start(self::start::Args),
     Pause,
     Finish,
     Status,
 }
-
-#[derive(clap::Subcommand)]
-pub enum Priority {
-    Before { idx: usize },
-    After { idx: usize },
-}

src/cli/priority.rs

@@ -0,0 +1,62 @@
+use crate::{CurrentTaskInfo, Task};
+
+use std::cmp::Ordering;
+use std::io::Write;
+use std::path::PathBuf;
+
+#[derive(clap::Args)]
+pub struct Args {
+    idx: usize,
+    #[clap(subcommand)]
+    priority: Priority,
+}
+
+#[derive(clap::Subcommand)]
+pub enum Priority {
+    Before { idx: usize },
+    After { idx: usize },
+}
+
+pub struct Request {
+    pub args: Args,
+    pub tasks: Vec<Task>,
+    pub current_task_info: Option<CurrentTaskInfo>,
+    pub tasks_file_path: PathBuf,
+}
+
+pub fn execute(req: Request) {
+    if req.current_task_info.is_some() {
+        panic!("You can change priority only when you don't have an active task, yet");
+    }
+
+    let target_idx = req.args.idx;
+    if target_idx == 0 || target_idx > req.tasks.len() {
+        panic!("invalid index");
+    }
+
+    let idx = match req.args.priority {
+        Priority::Before { idx } | Priority::After { idx } => match target_idx.cmp(&idx) {
+            Ordering::Equal => return,
+            Ordering::Less => idx - 1,
+            Ordering::Greater => idx,
+        },
+    };
+    if idx == 0 || idx > req.tasks.len() {
+        panic!("invalid index");
+    }
+
+    let target = req.tasks.remove(target_idx - 1);
+
+    match req.args.priority {
+        Priority::Before { .. } => {
+            req.tasks.insert(idx - 1, target);
+        }
+        Priority::After { .. } => {
+            req.tasks.insert(idx, target);
+        }
+    }
+
+    let mut file = std::fs::File::create(&req.tasks_file_path).unwrap();
+    file.write_all(&serde_json::to_vec(&req.tasks).unwrap())
+        .unwrap();
+}

src/main.rs

@@ -148,64 +148,40 @@ fn main() {
                 println!("{}", task.name);
             }
         }
-        cli::SubCommand::Priority {
-            idx: target_idx,
-            priority,
-        } => {
-            if current_task_info.is_some() {
-                panic!("You can change priority only when you don't have an active task, yet");
+        cli::SubCommand::Priority(args) => {
+            cli::priority::execute(cli::priority::Request {
+                args,
+                tasks,
+                tasks_file_path,
+                current_task_info,
+            });
         }
-
-            if target_idx == 0 || target_idx > tasks.len() {
-                panic!("invalid index");
-            }
-
-            let idx = match priority {
-                cli::Priority::Before { idx } | cli::Priority::After { idx } => {
-                    match target_idx.cmp(&idx) {
-                        Ordering::Equal => return,
-                        Ordering::Less => idx - 1,
-                        Ordering::Greater => idx,
-                    }
-                }
-            };
-            if idx == 0 || idx > tasks.len() {
-                panic!("invalid index");
-            }
-
-            let target = tasks.remove(target_idx - 1);
-
-            match priority {
-                cli::Priority::Before { .. } => {
-                    tasks.insert(idx - 1, target);
-                }
-                cli::Priority::After { .. } => {
-                    tasks.insert(idx, target);
-                }
-            }
-
-            let mut file = std::fs::File::create(&tasks_file_path).unwrap();
-            file.write_all(&serde_json::to_vec(&tasks).unwrap())
-                .unwrap();
-        }
-        cli::SubCommand::Start(args) => cli::start::execute(cli::start::Request {
+        cli::SubCommand::Start(args) => {
+            cli::start::execute(cli::start::Request {
                 args,
                 tasks,
                 current_task_info,
                 current_task_info_file_path,
-        }),
-        cli::SubCommand::Pause => cli::pause::execute(cli::pause::Request {
+            });
+        }
+        cli::SubCommand::Pause => {
+            cli::pause::execute(cli::pause::Request {
                 current_task_info,
                 current_task_info_file_path,
-        }),
-        cli::SubCommand::Finish => cli::finish::execute(cli::finish::Request {
+            });
+        }
+        cli::SubCommand::Finish => {
+            cli::finish::execute(cli::finish::Request {
                 tasks,
                 current_task_info,
                 current_task_info_file_path,
                 tasks_file_path,
                 finished_tasks_file_path,
-        }),
-        cli::SubCommand::Status => cli::status::execute(current_task_info),
+            });
+        }
+        cli::SubCommand::Status => {
+            cli::status::execute(current_task_info);
+        }
     }
 }