diff --git a/README.md b/README.md
index 50e618f..6acdbda 100644
--- a/README.md
+++ b/README.md
@@ -269,6 +269,42 @@ BEGIN
END;
$$ LANGUAGE plpgsql SECURITY DEFINER SET search_path = public;
+-- Return function (moves items back from a committee to main inventory)
+CREATE OR REPLACE FUNCTION return_item(
+ p_committee_id UUID,
+ p_item_id UUID,
+ p_quantity INTEGER
+) RETURNS void AS $$
+BEGIN
+ IF (SELECT quantity FROM committee_inventory
+ WHERE committee_id = p_committee_id
+ AND item_id = p_item_id
+ AND user_id = auth.uid()) < p_quantity THEN
+ RAISE EXCEPTION 'Committee does not have enough of this item to return';
+ END IF;
+
+ UPDATE main_inventory
+ SET quantity = quantity + p_quantity
+ WHERE item_id = p_item_id AND user_id = auth.uid();
+
+ UPDATE committee_inventory
+ SET quantity = quantity - p_quantity
+ WHERE committee_id = p_committee_id
+ AND item_id = p_item_id
+ AND user_id = auth.uid();
+
+ INSERT INTO dispatch_log (committee_id, item_id, quantity, item_name, committee_name)
+ VALUES (
+ p_committee_id,
+ p_item_id,
+ -p_quantity,
+ (SELECT name FROM items WHERE id = p_item_id),
+ (SELECT name FROM committees WHERE id = p_committee_id)
+ );
+END;
+$$ LANGUAGE plpgsql SECURITY DEFINER SET search_path = public;
+
+-- Account deletion (lets users delete their own account from the app)
-- Fulfill request (requester: confirms receipt, moves to committee inventory)
CREATE OR REPLACE FUNCTION fulfill_request(
p_request_id UUID
diff --git a/mun-logi-inventory/SQLCode b/mun-logi-inventory/SQLCode
new file mode 100644
index 0000000..a66ba3b
--- /dev/null
+++ b/mun-logi-inventory/SQLCode
@@ -0,0 +1,171 @@
+-- Tables (each row is scoped to the signed-in user)
+CREATE TABLE items (
+ id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+ user_id UUID DEFAULT auth.uid(),
+ name TEXT NOT NULL,
+ image_url TEXT,
+ created_at TIMESTAMPTZ DEFAULT now(),
+ UNIQUE(name, user_id)
+);
+
+CREATE TABLE main_inventory (
+ id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+ user_id UUID DEFAULT auth.uid(),
+ item_id UUID REFERENCES items(id) ON DELETE CASCADE,
+ quantity INTEGER NOT NULL DEFAULT 0,
+ UNIQUE(item_id, user_id)
+);
+
+CREATE TABLE committees (
+ id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+ user_id UUID DEFAULT auth.uid(),
+ name TEXT NOT NULL,
+ created_at TIMESTAMPTZ DEFAULT now(),
+ UNIQUE(name, user_id)
+);
+
+CREATE TABLE committee_inventory (
+ id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+ user_id UUID DEFAULT auth.uid(),
+ committee_id UUID REFERENCES committees(id) ON DELETE CASCADE,
+ item_id UUID REFERENCES items(id) ON DELETE CASCADE,
+ quantity INTEGER NOT NULL DEFAULT 0,
+ UNIQUE(committee_id, item_id, user_id)
+);
+
+CREATE TABLE dispatch_log (
+ id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+ user_id UUID DEFAULT auth.uid(),
+ committee_id UUID,
+ item_id UUID,
+ quantity INTEGER NOT NULL,
+ dispatched_at TIMESTAMPTZ DEFAULT now(),
+ note TEXT,
+ item_name TEXT,
+ committee_name TEXT
+);
+
+-- Row-level security (users can only access their own data)
+ALTER TABLE items ENABLE ROW LEVEL SECURITY;
+ALTER TABLE main_inventory ENABLE ROW LEVEL SECURITY;
+ALTER TABLE committees ENABLE ROW LEVEL SECURITY;
+ALTER TABLE committee_inventory ENABLE ROW LEVEL SECURITY;
+ALTER TABLE dispatch_log ENABLE ROW LEVEL SECURITY;
+
+CREATE POLICY "User owns data" ON items FOR ALL TO authenticated
+ USING (user_id = auth.uid()) WITH CHECK (user_id = auth.uid());
+CREATE POLICY "User owns data" ON main_inventory FOR ALL TO authenticated
+ USING (user_id = auth.uid()) WITH CHECK (user_id = auth.uid());
+CREATE POLICY "User owns data" ON committees FOR ALL TO authenticated
+ USING (user_id = auth.uid()) WITH CHECK (user_id = auth.uid());
+CREATE POLICY "User owns data" ON committee_inventory FOR ALL TO authenticated
+ USING (user_id = auth.uid()) WITH CHECK (user_id = auth.uid());
+CREATE POLICY "User owns data" ON dispatch_log FOR ALL TO authenticated
+ USING (user_id = auth.uid()) WITH CHECK (user_id = auth.uid());
+
+-- Default inventory created automatically for every new user on sign-up
+CREATE OR REPLACE FUNCTION public.create_default_inventory()
+RETURNS trigger AS $$
+DECLARE
+ item_names TEXT[] := ARRAY[
+ 'Folder', 'Notepad', 'Pen', 'ID & Lanyard', 'Placard',
+ 'Sticker', 'Badge', 'Markers', 'Extension Boards', 'Water Bottles'
+ ];
+ item_name TEXT;
+ new_item_id UUID;
+BEGIN
+ FOREACH item_name IN ARRAY item_names LOOP
+ INSERT INTO public.items (user_id, name)
+ VALUES (NEW.id, item_name) RETURNING id INTO new_item_id;
+ INSERT INTO public.main_inventory (user_id, item_id, quantity)
+ VALUES (NEW.id, new_item_id, 0);
+ END LOOP;
+ RETURN NEW;
+END;
+$$ LANGUAGE plpgsql SECURITY DEFINER SET search_path = public;
+
+CREATE TRIGGER on_auth_user_created
+ AFTER INSERT ON auth.users
+ FOR EACH ROW EXECUTE FUNCTION public.create_default_inventory();
+
+-- Dispatch function (moves items from main inventory to a committee)
+CREATE OR REPLACE FUNCTION dispatch_item(
+ p_committee_id UUID,
+ p_item_id UUID,
+ p_quantity INTEGER
+) RETURNS void AS $$
+BEGIN
+ IF (SELECT quantity FROM main_inventory WHERE item_id = p_item_id AND user_id = auth.uid()) < p_quantity THEN
+ RAISE EXCEPTION 'Insufficient stock in main inventory';
+ END IF;
+
+ UPDATE main_inventory
+ SET quantity = quantity - p_quantity
+ WHERE item_id = p_item_id AND user_id = auth.uid();
+
+ INSERT INTO committee_inventory (committee_id, item_id, quantity)
+ VALUES (p_committee_id, p_item_id, p_quantity)
+ ON CONFLICT (committee_id, item_id, user_id)
+ DO UPDATE SET quantity = committee_inventory.quantity + p_quantity;
+
+ INSERT INTO dispatch_log (committee_id, item_id, quantity, item_name, committee_name)
+ VALUES (
+ p_committee_id,
+ p_item_id,
+ p_quantity,
+ (SELECT name FROM items WHERE id = p_item_id),
+ (SELECT name FROM committees WHERE id = p_committee_id)
+ );
+END;
+$$ LANGUAGE plpgsql SECURITY DEFINER SET search_path = public;
+
+-- Return function (moves items back from a committee to main inventory)
+CREATE OR REPLACE FUNCTION return_item(
+ p_committee_id UUID,
+ p_item_id UUID,
+ p_quantity INTEGER
+) RETURNS void AS $$
+BEGIN
+ -- Validate the committee has enough of this item to return
+ IF (SELECT quantity FROM committee_inventory
+ WHERE committee_id = p_committee_id
+ AND item_id = p_item_id
+ AND user_id = auth.uid()) < p_quantity THEN
+ RAISE EXCEPTION 'Committee does not have enough of this item to return';
+ END IF;
+
+ -- Add back to main inventory
+ UPDATE main_inventory
+ SET quantity = quantity + p_quantity
+ WHERE item_id = p_item_id AND user_id = auth.uid();
+
+ -- Subtract from committee inventory
+ UPDATE committee_inventory
+ SET quantity = quantity - p_quantity
+ WHERE committee_id = p_committee_id
+ AND item_id = p_item_id
+ AND user_id = auth.uid();
+
+ -- Log the return as a negative-quantity dispatch entry
+ INSERT INTO dispatch_log (committee_id, item_id, quantity, item_name, committee_name)
+ VALUES (
+ p_committee_id,
+ p_item_id,
+ -p_quantity,
+ (SELECT name FROM items WHERE id = p_item_id),
+ (SELECT name FROM committees WHERE id = p_committee_id)
+ );
+END;
+$$ LANGUAGE plpgsql SECURITY DEFINER SET search_path = public;
+
+-- Account deletion (lets users delete their own account from the app)
+CREATE OR REPLACE FUNCTION public.delete_own_account()
+RETURNS void
+LANGUAGE plpgsql
+SECURITY DEFINER
+SET search_path = auth, public
+AS $$
+BEGIN
+ DELETE FROM auth.users WHERE id = auth.uid();
+END;
+$$;
\ No newline at end of file
diff --git a/mun-logi-inventory/src/components/ItemCard.jsx b/mun-logi-inventory/src/components/ItemCard.jsx
index 2a89c55..3dd6f9c 100644
--- a/mun-logi-inventory/src/components/ItemCard.jsx
+++ b/mun-logi-inventory/src/components/ItemCard.jsx
@@ -68,6 +68,25 @@ export default function ItemCard({ item, quantity, onDispatch, onReturn, onUpdat
)}
+ {/* Action buttons */}
+
+ Total items dispatched to this committee. Tap a card to dispatch more, or return items to inventory.
Items dispatched to this committee. Dispatch more or return items.