Refactors some backend stuff to core lib

1 files changed, 70 insertions, 0 deletions

diff --git a/backend/core/2024-08-31-084439_initial_setup/up.sql b/backend/core/2024-08-31-084439_initial_setup/up.sql
new file mode 100644
index 0000000..3584ae7
--- /dev/null
+++ b/backend/core/2024-08-31-084439_initial_setup/up.sql
@@ -0,0 +1,70 @@
+PRAGMA foreign_keys = ON;
+
+CREATE TABLE accounts(
+    id INTEGER NOT NULL PRIMARY KEY,
+    name TEXT NOT NULL,
+    opening_balance INTEGER NOT NULL,
+    opening_date TEXT NOT NULL
+);
+
+CREATE TABLE budget_updates(
+    id INTEGER NOT NULL PRIMARY KEY,
+    category_id INTEGER NOT NULL,
+    date TEXT NOT NULL,
+    new_budget INTEGER NOT NULL,
+    new_period INTEGER NOT NULL,
+    FOREIGN KEY (category_id)
+        REFERENCES categories (id)
+        ON UPDATE CASCADE
+        ON DELETE RESTRICT
+);
+
+CREATE TABLE categories(
+    id INTEGER NOT NULL PRIMARY KEY,
+    name TEXT NOT NULL
+);
+
+CREATE TABLE category_transfers(
+    id INTEGER NOT NULL PRIMARY KEY,
+    description TEXT NOT NULL,
+    quantity INTEGER NOT NULL,
+    from_category_id INTEGER NOT NULL,
+    to_category_id INTEGER NOT NULL,
+    FOREIGN KEY (from_category_id)
+        REFERENCES categories (id)
+        ON UPDATE CASCADE
+        ON DELETE RESTRICT,
+    FOREIGN KEY (to_category_id)
+        REFERENCES categories (id)
+        ON UPDATE CASCADE
+        ON DELETE RESTRICT
+);
+
+CREATE TABLE transactions(
+    id INTEGER NOT NULL PRIMARY KEY,
+    description TEXT NOT NULL,
+    payee TEXT NOT NULL,
+    quantity INTEGER NOT NULL,
+    date TEXT NOT NULL,
+    account_id INTEGER NOT NULL,
+    FOREIGN KEY (account_id)
+        REFERENCES accounts (id)
+        ON UPDATE CASCADE
+        ON DELETE RESTRICT
+);
+
+CREATE TABLE transaction_categorisations(
+    id INTEGER NOT NULL PRIMARY KEY,
+    description TEXT NOT NULL,
+    quantity INTEGER NOT NULL,
+    transaction_id INTEGER NOT NULL,
+    category_id INTEGER NOT NULL,
+    FOREIGN KEY (transaction_id)
+        REFERENCES transactions (id)
+        ON UPDATE CASCADE
+        ON DELETE RESTRICT,
+    FOREIGN KEY (category_id)
+        REFERENCES categories (id)
+        ON UPDATE CASCADE
+        ON DELETE RESTRICT
+);