add install

src/cli.rs

@@ -1,4 +1,4 @@
-use std::{path::PathBuf};
+use std::path::PathBuf;
 
 use crate::{
     deps,
@@ -27,11 +27,11 @@ impl Cli {
 
         let path = matches.get_one::<String>("path");
         if let Some(p) = path {
-            let validated_path = PathBuf::from(p);
-            if !validated_path.exists() {
+            let path = PathBuf::from(p);
+            if !path.exists() {
                 eyre::bail!("no char.toml exists at --path")
             }
-            self.deps.parser.set_path(validated_path);
+            self.deps.parser.set_path(path);
         }
 
         match matches.subcommand() {

src/context/mod.rs

@@ -0,0 +1,29 @@
+use crate::models::Char;
+
+pub struct Context {}
+
+impl Context {
+    pub fn new(chars: Vec<Char>) -> Self {
+        Self {}
+    }
+}
+
+pub struct ContextBuilder {
+    chars: Vec<Char>,
+}
+
+impl ContextBuilder {
+    pub fn new() -> Self {
+        Self { chars: vec![] }
+    }
+
+    pub fn add_char(mut self, char: &Char) -> Self {
+        self.chars.push(char.clone());
+
+        self
+    }
+
+    pub fn build(self) -> Context {
+        Context::new(self.chars)
+    }
+}

src/deps.rs

@@ -1,9 +1,6 @@
-use std::{
-    ops::{Deref},
-    sync::Arc,
-};
+use std::{ops::Deref, sync::Arc};
 
-use crate::parser::Parser;
+use crate::{parser::Parser, services::downloader::Downloader};
 
 #[derive(Debug, Clone)]
 pub struct Deps {
@@ -13,14 +10,16 @@ pub struct Deps {
 #[derive(Debug, Clone)]
 pub struct InnerDeps {
     pub parser: Parser,
+    pub downloader: Downloader,
 }
 
 impl Default for Deps {
     fn default() -> Self {
+        let parser = Parser::default();
+        let downloader = Downloader::new(parser.clone());
+
         Self {
-            inner: Arc::new(InnerDeps {
-                parser: Parser::default(),
-            }),
+            inner: Arc::new(InnerDeps { parser, downloader }),
         }
     }
 }

src/main.rs

@@ -3,6 +3,8 @@ mod deps;
 mod models;
 mod parser;
 mod resolvers;
+mod services;
+mod context;
 
 fn main() -> eyre::Result<()> {
     color_eyre::install()?;

src/models.rs

@@ -7,9 +7,9 @@ type Dependencies = Vec<String>;
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct Conf {
-    plan: String,
-    dependencies: Option<Dependencies>,
-    overrides: Option<Overrides>,
+    pub plan: String,
+    pub dependencies: Option<Dependencies>,
+    pub overrides: Option<Overrides>,
 }
 
 #[derive(Serialize, Deserialize, Clone, Debug)]

src/parser.rs

@@ -19,22 +19,38 @@ impl Parser {
         }
     }
 
-    pub fn set_path(&self, _path: PathBuf) {
-        let _writer = self.path.write().unwrap();
+    pub fn set_path(&self, path: PathBuf) {
+        let mut writer = self.path.write().unwrap();
+        *writer = Some(path);
     }
 
-    pub fn parse(&self) -> eyre::Result<models::Char> {
+    pub fn get_path(&self) -> eyre::Result<PathBuf> {
         let read_path = self.path.read().unwrap();
         let path = match read_path.clone() {
             Some(p) => p,
             None => todo!(), // find using git later on
         };
 
+        Ok(path)
+    }
+
+    pub fn parse(&self) -> eyre::Result<models::Char> {
+        let mut path = self.get_path()?;
+        if !path.ends_with("char.toml") {
+            path.push("char.toml")
+        }
         let contents =
             std::fs::read_to_string(&path).context("char.toml doesn't exist at that path")?;
 
         contents.parse::<Char>()
     }
+
+    pub fn parse_from(&self, path: &PathBuf) -> eyre::Result<models::Char> {
+        let contents =
+            std::fs::read_to_string(path).context("char.toml doesn't exist at that path")?;
+
+        contents.parse::<Char>()
+    }
 }
 
 impl Default for Parser {

src/resolvers/install.rs

@@ -2,6 +2,7 @@ use crate::deps;
 
 use super::{DynResolver, Resolver};
 
+#[allow(dead_code)]
 #[derive(Debug, Clone)]
 pub struct Install {
     deps: deps::Deps,
@@ -21,9 +22,7 @@ impl Resolver for Install {
     }
 
     fn matches(&self, _args: &clap::ArgMatches) -> eyre::Result<()> {
-        let char = self.deps.parser.parse()?;
-
-        dbg!(char);
+        self.deps.downloader.download()?;
 
         Ok(())
     }

src/services/downloader.rs

@@ -0,0 +1,96 @@
+use std::{fs::canonicalize, path::PathBuf};
+
+use crate::{
+    context::{Context, ContextBuilder},
+    models::{Char, Conf},
+    parser::Parser,
+};
+
+#[derive(Debug, Clone)]
+pub struct Downloader {
+    parser: Parser,
+}
+#[allow(dead_code)]
+impl Downloader {
+    pub fn new(parser: Parser) -> Self {
+        Self { parser }
+    }
+
+    /// Unfolds char
+    /// 1. Download path
+    /// 2. Parse char in downloaded path
+    /// 3. Repeat from 1. until there are no more parents
+    pub fn download(&self) -> eyre::Result<Context> {
+        let mut context_builder = ContextBuilder::new();
+
+        let char = self.parser.parse()?;
+        context_builder = context_builder.add_char(&char);
+        let first_char_path = self.parser.get_path()?;
+
+        let mut root = std::env::current_dir()?;
+        root = root.join(&first_char_path);
+        root.push(".char");
+        let output = self.create_output_dir(&root)?;
+
+        let mut parent_char = char;
+        let path = first_char_path;
+        loop {
+            parent_char = match &parent_char {
+                Char::Application {
+                    char,
+                    application: _,
+                    config: _,
+                } => match char {
+                    Some(c) => self.download_plan(c, &path, &output)?,
+                    None => {
+                        break;
+                    }
+                },
+                Char::Plan {
+                    char,
+                    plan: _,
+                    config: _,
+                } => match char {
+                    Some(_c) => todo!(),
+                    None => {
+                        break;
+                    }
+                },
+            }
+        }
+
+        Ok(context_builder.build())
+    }
+
+    fn download_plan(
+        &self,
+        conf: &Conf,
+        path: &PathBuf,
+        output_path: &PathBuf,
+    ) -> eyre::Result<Char> {
+        let plan = &conf.plan;
+
+        // TODO: decide whether it is a file or a git repo
+        // TODO: Starting with files only, as such implement git repo later
+
+        let path_buf = std::path::PathBuf::from(plan);
+        let path = path.join(path_buf);
+        if !path.exists() {
+            eyre::bail!("path doesn't exist: {}", path.to_string_lossy())
+        }
+        let path = canonicalize(path)?;
+
+        dbg!(path);
+        dbg!(output_path);
+
+        todo!()
+    }
+
+    fn create_output_dir(&self, root: &PathBuf) -> eyre::Result<PathBuf> {
+        let mut output = root.clone();
+        output.push("plans");
+        std::fs::create_dir_all(&output)?;
+
+        Ok(output)
+    }
+}

src/services/mod.rs

@@ -0,0 +1 @@
+pub mod downloader;