From 61db3da6953acc15aad806b4fb0d5c1c501061d3 Mon Sep 17 00:00:00 2001
From: kjuulh <contact@kjuulh.io>
Date: Sat, 24 Aug 2024 15:16:30 +0200
Subject: [PATCH] feat: add validated state for project

Signed-off-by: kjuulh <contact@kjuulh.io>
---
 crates/cuddle/src/main.rs  |  2 +-
 crates/cuddle/src/state.rs | 96 +++++++++++++++++++++++++++++++++++++-
 2 files changed, 95 insertions(+), 3 deletions(-)

diff --git a/crates/cuddle/src/main.rs b/crates/cuddle/src/main.rs
index 2940fff..12a5764 100644
--- a/crates/cuddle/src/main.rs
+++ b/crates/cuddle/src/main.rs
@@ -82,7 +82,7 @@ impl Cuddle<PreparePlan> {
 
             state.validate_state(&raw_state).await?
         } else {
-            ValidatedState {}
+            ValidatedState::default()
         };
 
         Ok(Cuddle { state })
diff --git a/crates/cuddle/src/state.rs b/crates/cuddle/src/state.rs
index 32ddef5..0f0a846 100644
--- a/crates/cuddle/src/state.rs
+++ b/crates/cuddle/src/state.rs
@@ -1,3 +1,5 @@
+use validated_project::Project;
+
 use crate::{
     plan::{self, ClonedPlan, PlanPathExt},
     project::{self, ProjectPlan},
@@ -33,8 +35,12 @@ impl State {
         }
 
         // 3. Match against schema from plan
+        let project = validated_project::Project::from_path(&state.project.root).await?;
 
-        Ok(ValidatedState {})
+        Ok(ValidatedState {
+            project: Some(project),
+            plan: None,
+        })
     }
 }
 
@@ -42,4 +48,90 @@ pub struct RawState {
     project: project::RawProject,
     plan: Option<plan::RawPlan>,
 }
-pub struct ValidatedState {}
+
+#[derive(Default)]
+pub struct ValidatedState {
+    project: Option<Project>,
+    plan: Option<Plan>,
+}
+
+mod validated_project {
+    use std::{
+        collections::BTreeMap,
+        path::{Path, PathBuf},
+    };
+
+    use anyhow::anyhow;
+    use toml::Table;
+
+    use crate::project::CUDDLE_PROJECT_FILE;
+
+    pub struct Project {
+        value: Value,
+        pub root: PathBuf,
+    }
+
+    impl Project {
+        pub fn new(value: Value, root: &Path) -> Self {
+            Self {
+                value,
+                root: root.to_path_buf(),
+            }
+        }
+
+        pub fn from_file(content: &str, root: &Path) -> anyhow::Result<Self> {
+            let table: Table = toml::from_str(content)?;
+            let config = Config::default();
+
+            let project = table
+                .get("project")
+                .ok_or(anyhow!("cuddle.toml doesn't provide a [project] table"))?;
+
+            let value: Value = project.into();
+
+            Ok(Self::new(value, root))
+        }
+
+        pub async fn from_path(path: &Path) -> anyhow::Result<Self> {
+            let cuddle_file = path.join(CUDDLE_PROJECT_FILE);
+
+            if !cuddle_file.exists() {
+                anyhow::bail!("no cuddle.toml project file found");
+            }
+
+            let cuddle_project_file = tokio::fs::read_to_string(cuddle_file).await?;
+
+            Self::from_file(&cuddle_project_file, path)
+        }
+    }
+
+    #[derive(Default)]
+    struct Config {
+        project: BTreeMap<String, Value>,
+    }
+
+    pub enum Value {
+        String(String),
+        Bool(bool),
+        Array(Vec<Value>),
+        Map(BTreeMap<String, Value>),
+    }
+
+    impl From<&toml::Value> for Value {
+        fn from(value: &toml::Value) -> Self {
+            match value {
+                toml::Value::String(s) => Self::String(s.clone()),
+                toml::Value::Integer(i) => Self::String(i.to_string()),
+                toml::Value::Float(f) => Self::String(f.to_string()),
+                toml::Value::Boolean(b) => Self::Bool(*b),
+                toml::Value::Datetime(dt) => Self::String(dt.to_string()),
+                toml::Value::Array(array) => Self::Array(array.iter().map(|i| i.into()).collect()),
+                toml::Value::Table(tbl) => {
+                    Self::Map(tbl.iter().map(|(k, v)| (k.clone(), v.into())).collect())
+                }
+            }
+        }
+    }
+}
+
+pub struct Plan {}