From 5e92e30f51a812bb5ffce7df6a02cb5ec3e583e3 Mon Sep 17 00:00:00 2001
From: artus40 <artus@landoftheunicorn.ovh>
Date: Wed, 30 Jan 2019 14:21:37 +0100
Subject: [PATCH] Creates a simple planning

---
 cookbook/db.sqlite3              | Bin 20480 -> 20480 bytes
 cookbook/src/bin/show_recipes.rs |   1 -
 cookbook/src/lib.rs              |  12 ++++++++++++
 cookbook/src/models.rs           |   2 +-
 planner/.env                     |   1 +
 planner/src/bin/weekly.rs        |  31 +++++++++++++++++++++++++++++++
 6 files changed, 45 insertions(+), 2 deletions(-)
 create mode 100644 planner/.env

diff --git a/cookbook/db.sqlite3 b/cookbook/db.sqlite3
index 32548bfed1af21cacc5a4c488357f03e20a5187a..6157cfa126d02589a208d68578d065f000992a82 100644
GIT binary patch
delta 134
zcmZozz}T>Wae_3X%tRSyMwyKXOZ0hI_zM~MAMx+!U&LRySx_L6-%y{0jX{;eoi`-0
zs3bEjC$*#`l{X-<B(Ws5n3u~Zu_z@!56B2gP0Gnn&dAT><(j<6K1qO$e***mC;sRB
bH~G)<AK>2rG;0pO03RDOgEF$x1O5&Gg8V5M

delta 63
zcmV-F0Kor%paFoO0gxL38j&1B0UEJjq%R5s5264M;t#(MqO%bYln;}lKVl9A55NEq
V@(<?^*$>SRz_Sq`t`C#IPe6a(6=DDY

diff --git a/cookbook/src/bin/show_recipes.rs b/cookbook/src/bin/show_recipes.rs
index 2d86407..2d25df1 100644
--- a/cookbook/src/bin/show_recipes.rs
+++ b/cookbook/src/bin/show_recipes.rs
@@ -10,7 +10,6 @@ fn main() {
 
     let conn = establish_connection();
     let result = recipes
-        .limit(5)
         .load::<Recipe>(&conn)
         .expect("Error loading recipes");
 
diff --git a/cookbook/src/lib.rs b/cookbook/src/lib.rs
index a614405..1a9b7cc 100644
--- a/cookbook/src/lib.rs
+++ b/cookbook/src/lib.rs
@@ -21,6 +21,18 @@ pub fn establish_connection() -> SqliteConnection {
         .expect(&format!("Error connecting to {}", db_url))
 }
 
+pub mod recipes {
+    use crate::models::{Recipe, NewRecipe};
+    use super::{SqliteConnection, schema};
+    use super::diesel::prelude::*;
+
+    pub fn load_all(conn: &SqliteConnection) -> Vec<Recipe> {
+        use self::schema::recipes::dsl::*;
+        recipes.load::<Recipe>(conn)
+            .expect("Error loading recipe's list")
+    }
+}
+
 
 pub mod ingredients {
     use crate::models::{Ingredient, NewIngredient};
diff --git a/cookbook/src/models.rs b/cookbook/src/models.rs
index f120216..dcfa9e9 100644
--- a/cookbook/src/models.rs
+++ b/cookbook/src/models.rs
@@ -2,7 +2,7 @@ use super::schema::recipes;
 use super::schema::ingredients;
 use super::diesel::prelude::*;
 
-#[derive(Queryable)]
+#[derive(Debug, Clone, Queryable)]
 pub struct Recipe {
     pub id: i32,
     pub title: String,
diff --git a/planner/.env b/planner/.env
new file mode 100644
index 0000000..96e052a
--- /dev/null
+++ b/planner/.env
@@ -0,0 +1 @@
+DATABASE_URL=../cookbook/db.sqlite3
diff --git a/planner/src/bin/weekly.rs b/planner/src/bin/weekly.rs
index 0ffea8f..22289d4 100644
--- a/planner/src/bin/weekly.rs
+++ b/planner/src/bin/weekly.rs
@@ -1,2 +1,33 @@
 //! The weekly menu planner
 //!
+extern crate cookbook;
+extern crate planner;
+
+use self::cookbook::*;
+use self::cookbook::models::Recipe;
+use self::planner::solver::{Domain, Problem, Variables};
+
+fn ingredients_contains<'a>(assign: &Variables<'a,Recipe>) -> bool {
+       assign.get("Lundi_midi").unwrap().unwrap().ingredients.contains("Patates")
+    && assign.get("Mardi_midi").unwrap().unwrap().ingredients.contains("Patates")
+}
+
+fn get_planning_all_results() -> String {
+    let conn = establish_connection();
+    let possible_values = recipes::load_all(&conn);
+    let domain = Domain::new(possible_values);
+
+    let mut problem = Problem::build()
+        .add_variable("Lundi_midi".to_string(), &domain, None)
+        .add_variable("Mardi_midi".to_string(), &domain, None)
+        .add_constraint(ingredients_contains)
+        .finish();
+
+    let results = problem.solve_all();
+    format!("{:#?}\nTotal = {}", &results, results.len())
+}
+
+fn main() {
+
+    println!("{}", get_planning_all_results());
+}