(feat) refactoring, migration, sqlx prepare

migrations/20251106181838_init_banking_schema.sql

@@ -0,0 +1,70 @@
+-- migrations/XXXXXX_init_banking_schema.sql
+-- Complete schema for multi-bank transaction aggregation
+
+-- Table: user_consents
+-- Stores consent IDs granted by users for each bank
+CREATE TABLE IF NOT EXISTS user_consents (
+    id SERIAL PRIMARY KEY,
+    user_id VARCHAR(50) NOT NULL,
+    bank_code VARCHAR(20) NOT NULL,
+    consent_id VARCHAR(100) NOT NULL,
+    status VARCHAR(20) NOT NULL DEFAULT 'active',
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    expires_at TIMESTAMPTZ NOT NULL,
+    
+    UNIQUE(user_id, bank_code)
+);
+
+CREATE INDEX IF NOT EXISTS idx_user_consents_user_bank ON user_consents(user_id, bank_code);
+CREATE INDEX IF NOT EXISTS idx_user_consents_consent_id ON user_consents(consent_id);
+
+-- Table: accounts
+-- Stores all bank accounts across all banks for all users
+CREATE TABLE IF NOT EXISTS accounts (
+    id SERIAL PRIMARY KEY,
+    account_id VARCHAR(50) NOT NULL,
+    user_id VARCHAR(50) NOT NULL,
+    bank_code VARCHAR(20) NOT NULL,
+    
+    status VARCHAR(20),
+    currency VARCHAR(3) NOT NULL,
+    account_type VARCHAR(50) NOT NULL,
+    account_sub_type VARCHAR(50),
+    nickname VARCHAR(255) NOT NULL,
+    description TEXT,
+    opening_date DATE,
+    
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    
+    UNIQUE(account_id, bank_code)
+);
+
+CREATE INDEX IF NOT EXISTS idx_accounts_user_id ON accounts(user_id);
+CREATE INDEX IF NOT EXISTS idx_accounts_bank_code ON accounts(bank_code);
+
+-- Table: transactions
+-- Stores all transactions from all accounts
+CREATE TABLE IF NOT EXISTS transactions (
+    id SERIAL PRIMARY KEY,
+    transaction_id VARCHAR(100) NOT NULL,
+    account_id VARCHAR(50) NOT NULL,
+    bank_code VARCHAR(20) NOT NULL,
+    
+    amount NUMERIC(15, 2) NOT NULL,
+    currency VARCHAR(3) NOT NULL,
+    credit_debit_indicator VARCHAR(10) NOT NULL,
+    status VARCHAR(20) NOT NULL,
+    booking_date_time TIMESTAMPTZ NOT NULL,
+    value_date_time TIMESTAMPTZ,
+    transaction_information TEXT,
+    bank_transaction_code VARCHAR(50),
+    
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    
+    UNIQUE(transaction_id, bank_code)
+);
+
+CREATE INDEX IF NOT EXISTS idx_transactions_account_id ON transactions(account_id);
+CREATE INDEX IF NOT EXISTS idx_transactions_booking_date ON transactions(booking_date_time);
+CREATE INDEX IF NOT EXISTS idx_transactions_bank_code ON transactions(bank_code);