Added transaction feature, fixed some mistakes

backend/migrations/000001_create_users.up.sql

@@ -1,7 +1,7 @@
 CREATE TABLE users
 (
     id            BIGSERIAL PRIMARY KEY,
-    telegram_id   BIGINT UNIQUE NOT NULL,
+    telegram_id   BIGINT UNIQUE,
     username      TEXT,
     first_name    TEXT          NOT NULL,
     last_name     TEXT,

backend/migrations/000002_create_families.up.sql

@@ -3,7 +3,7 @@ CREATE TABLE families
     id                 BIGSERIAL PRIMARY KEY,
     name               TEXT      NOT NULL,
     owner_id           BIGINT    NOT NULL REFERENCES users (id),
-    telegram_chat_id   BIGINT    NOT NULL,
+    telegram_chat_id   BIGINT,
     telegram_chat_name TEXT,
     created_at         TIMESTAMP NOT NULL DEFAULT NOW(),
     updated_at         TIMESTAMP NOT NULL DEFAULT NOW()

backend/migrations/000004_create_family_threads.down.sql

@@ -1,2 +0,0 @@
-DROP TABLE IF EXISTS threads;
-DROP TYPE IF EXISTS thread_type;

backend/migrations/000004_create_family_threads.up.sql

@@ -1,19 +0,0 @@
-CREATE TABLE  family_threads
-(
-    id                BIGSERIAL PRIMARY KEY,
-    family_id         BIGINT    NOT NULL REFERENCES families (id) ON DELETE CASCADE,
-    type              TEXT      NOT NULL,
-    title             TEXT      NOT NULL,
-    telegram_topic_id BIGINT    NOT NULL,
-    is_system         BOOLEAN   NOT NULL DEFAULT FALSE,
-    created_by        BIGINT    NOT NULL REFERENCES users (id),
-    created_at        TIMESTAMP NOT NULL DEFAULT NOW(),
-
-    UNIQUE (family_id, telegram_topic_id)
-);
-
-CREATE UNIQUE INDEX idx_unique_system_threads ON family_threads (family_id, type) WHERE is_system = TRUE;
-
-CREATE INDEX idx_threads_family_id ON family_threads (family_id);
-
-CREATE INDEX idx_threads_family_type ON family_threads (family_id, type);

backend/migrations/000005_create_receipts.down.sql

@@ -1 +1,2 @@
-DROP TABLE receipts;
+DROP TABLE IF EXISTS receipts;
+DROP TABLE IF EXISTS transactions;

backend/migrations/000005_create_receipts.up.sql

@@ -1,6 +1,25 @@
+CREATE TABLE transactions
+(
+    id          BIGSERIAL PRIMARY KEY,
+    family_id   BIGINT         NOT NULL REFERENCES families (id) ON DELETE CASCADE,
+    description TEXT,
+    type        TEXT           NOT NULL,
+    datetime    TIMESTAMP      NOT NULL,
+    category    TEXT           NOT NULL,
+    amount      NUMERIC(14, 2) NOT NULL,
+    created_at  TIMESTAMP      NOT NULL DEFAULT NOW(),
+    created_by  BIGINT         NOT NULL REFERENCES users (id) ON DELETE RESTRICT
+);
+
+CREATE INDEX idx_transactions_family_id ON transactions (family_id);
+CREATE INDEX idx_transactions_datetime ON transactions (datetime);
+CREATE INDEX idx_transactions_created_by ON transactions (created_by);
+CREATE INDEX idx_transactions_family_datetime ON transactions (family_id, datetime DESC);
+
 CREATE TABLE receipts
 (
     id              BIGSERIAL PRIMARY KEY,
+    transaction_id  BIGINT UNIQUE REFERENCES transactions (id) ON DELETE SET NULL,
     receipt_number  TEXT      NOT NULL UNIQUE,
     ui              TEXT      NOT NULL,
     status          INTEGER   NOT NULL,
@@ -29,7 +48,8 @@ CREATE TABLE receipts
     skno_number     TEXT,
     unp             TEXT,
     success         TEXT,
-    created_at      TIMESTAMP DEFAULT NOW()
+    created_at      TIMESTAMP NOT NULL DEFAULT NOW()
 );
 
-CREATE INDEX idx_receipts_issued_at ON receipts(issued_at);
+CREATE INDEX idx_receipts_issued_at ON receipts (issued_at);
+CREATE INDEX idx_receipts_transaction_id ON receipts (transaction_id);