From 5df7d66df773d33612d78e1fc7ac70ec80ef8f99 Mon Sep 17 00:00:00 2001
From: Kalle Struik <kalle@kallestruik.nl>
Date: Thu, 13 Oct 2022 17:34:29 +0200
Subject: [PATCH] Initial commit

---
 .gitignore  |   1 +
 Cargo.lock  | 353 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 Cargo.toml  |  13 ++
 README.md   |   2 +
 src/main.rs | 154 +++++++++++++++++++++++
 5 files changed, 523 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Cargo.lock
 create mode 100644 Cargo.toml
 create mode 100644 README.md
 create mode 100644 src/main.rs

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ea8c4bf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/target
diff --git a/Cargo.lock b/Cargo.lock
new file mode 100644
index 0000000..fb0d7b7
--- /dev/null
+++ b/Cargo.lock
@@ -0,0 +1,353 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..96e223c
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "project"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+anyhow = "1.0.65"
+clap = { version = "4.0.14", features = ["derive"] }
+serde = { version = "1.0.145", features = ["derive"] }
+serde_json = "1.0.86"
+xdg = "2.4.1"
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..8e6ac4c
--- /dev/null
+++ b/README.md
@@ -0,0 +1,2 @@
+# Projects
+A tool for managing projects from the commandline.
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..67846c8
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,154 @@
+use anyhow::Result;
+use std::{fs::{File, self}, path::PathBuf, io::{BufReader, Write, self}, collections::HashMap};
+use clap::{Parser, Subcommand, Args};
+use xdg;
+
+#[derive(Debug, Parser)]
+struct Cli {
+    #[command(subcommand)]
+    action: Action,
+}
+
+#[derive(Debug, Subcommand)]
+enum Action {
+    New(NewProjectArgs),
+    Delete(ProjectNameArgs),
+    Path(ProjectNameArgs),
+    List,
+}
+
+#[derive(Debug, Args)]
+struct NewProjectArgs {
+    project_name: String,
+    project_path: String,
+}
+
+#[derive(Debug, Args)]
+struct ProjectNameArgs {
+    project_name: String,
+}
+
+type ProjectData = HashMap<String, String>;
+
+fn main() {
+    let cli = Cli::parse(); 
+
+    let project_data = match load_or_default_project_data() {
+        Ok(data) => data,
+        Err(error) => {
+            println!("An error occured while reading the project data file. {}", error);
+            return;
+        }
+    };
+
+    process_command(cli, project_data);
+}
+
+fn load_or_default_project_data() -> Result<ProjectData> {
+    let data_file_path = xdg::BaseDirectories::with_prefix("projects")?.place_data_file("projects.json")?;
+    create_default_data_file_if_needed(&data_file_path);
+    let data_file = File::open(data_file_path)?;
+    let reader = BufReader::new(data_file);
+
+    let project_data: ProjectData = serde_json::from_reader(reader)?;
+
+    return Ok(project_data);
+}
+
+fn save_project_data(project_data: ProjectData) -> Result<()> {
+    let data_file_path = xdg::BaseDirectories::with_prefix("projects")?.place_data_file("projects.json")?;
+    let mut data_file = File::create(data_file_path)?;
+
+    let data_string = serde_json::to_string(&project_data)?;
+    write!(data_file, "{}", data_string).expect("Failed to write new data file!");
+
+    return Ok(());
+}
+
+fn create_default_data_file_if_needed(data_file_path: &PathBuf) {
+    if data_file_path.exists() { return; }
+
+    fs::create_dir_all(data_file_path.parent().unwrap()).ok();
+
+    let mut data_file = File::create(data_file_path).expect("Error creating data file!");
+    write!(data_file, "{{}}").expect("Error writing default content to data file!");
+}
+
+fn process_command(cli: Cli, project_data: ProjectData) -> Option<()> {
+    match cli.action {
+        Action::New(NewProjectArgs { project_name, project_path }) => new_project(project_name, project_path, project_data),
+        Action::Delete(ProjectNameArgs {project_name}) => delete_project(project_name, project_data),
+        Action::Path(ProjectNameArgs {project_name}) => project_path(project_name, project_data),
+        Action::List => project_list(project_data),
+    };
+
+    return None;
+}
+
+fn new_project(project_name: String, project_path: String, mut project_data: ProjectData) {
+    if project_data.contains_key(&project_name) {
+        println!("Project with the name {} already exists!", project_name);
+        return;
+    }
+
+    let project_path = std::path::Path::new(&project_path);
+
+    if !project_path.exists() {
+        fs::create_dir_all(&project_path).ok();
+    }
+
+    let project_path = match project_path.canonicalize() {
+        Ok(path) => path,
+        Err(error) => {
+            println!("An error occured while resolving the given path. {}", error);
+            return;
+        }
+    }; 
+
+    project_data.insert(project_name.to_owned(), project_path.into_os_string().into_string().expect("Invalid path!"));
+
+    save_project_data(project_data).expect("Error while saving data file!");
+    println!("Successfully created new project {}!", project_name);
+}
+
+fn delete_project(project_name: String, mut project_data: ProjectData) {
+    if !project_data.contains_key(&project_name) {
+        println!("No project with the name {} exists!", project_name);
+        return;
+    }
+
+    let project_path_string = &project_data[&project_name];
+    let project_path = std::path::Path::new(project_path_string);
+
+    println!("Are you sure you want to remove project with name {}? WARNING: This will also delete all files at {}! (y/N) ", project_name, project_path_string);
+    let mut buffer = String::new();
+    io::stdin().read_line(&mut buffer).expect("Error while reading stdin!");
+    if buffer.trim() != "y" {
+        println!("Aborting...");
+        return;
+    }
+
+    fs::remove_dir_all(project_path).expect("Error while deleting project directory!");
+    
+    project_data.remove(&project_name);
+
+    save_project_data(project_data).expect("Error while saving data file!");
+    println!("Successfully removed project {}!", project_name);
+}
+
+fn project_path(project_name: String, project_data: ProjectData) {
+    let project_path = project_data.get(&project_name);
+
+    if let Some(project_path) = project_path {
+        println!("{}", project_path);
+    } else {
+        println!("No such project!")
+    };
+}
+
+fn project_list(project_data: ProjectData) {
+    for project_name in project_data.keys() {
+        println!("{}", project_name);
+    }
+}
+