Start working on recipes feature

migrations/0025.sql

@@ -0,0 +1,38 @@
+CREATE TABLE recipes (
+	id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+	name TEXT NOT NULL,
+	description TEXT,
+	row_created_timestamp DATETIME DEFAULT (datetime('now', 'localtime'))
+);
+
+CREATE TABLE recipes_pos (
+	id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE,
+	recipe_id INTEGER NOT NULL,
+	product_id INTEGER NOT NULL,
+	amount INTEGER NOT NULL DEFAULT 0,
+	note TEXT,
+	row_created_timestamp DATETIME DEFAULT (datetime('now', 'localtime'))
+);
+
+CREATE VIEW recipes_fulfillment
+AS
+SELECT
+	r.id AS recipe_id,
+	rp.id AS recipe_pos_id,
+	rp.product_id,
+	rp.amount AS recipe_amount,
+	sc.amount AS stock_amount,
+	CASE WHEN sc.amount >= rp.amount THEN 1 ELSE 0 END AS need_fullfiled
+FROM recipes r
+LEFT JOIN recipes_pos rp
+	ON r.id = rp.recipe_id
+LEFT JOIN stock_current sc
+	ON rp.product_id = sc.product_id;
+
+CREATE VIEW recipes_fulfillment_sum
+AS
+SELECT
+	rf.recipe_id,
+	MIN(rf.need_fullfiled) AS need_fullfiled
+FROM recipes_fulfillment rf
+GROUP BY rf.recipe_id;