Added migration mgmt with goose.

internal/db/migrations/00001_init.sql

@@ -0,0 +1,71 @@
+-- +goose Up
+CREATE TABLE users (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    oidc_subject TEXT UNIQUE NOT NULL,
+    username TEXT NOT NULL,
+    email TEXT UNIQUE NOT NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE sites (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    user_id INTEGER NOT NULL,
+    domain TEXT UNIQUE NOT NULL,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
+);
+
+CREATE TABLE payments (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    user_id INTEGER NOT NULL,
+    amount INTEGER NOT NULL, -- Store amount in cents to avoid floating point issues
+    currency TEXT NOT NULL DEFAULT 'USD',
+    status TEXT NOT NULL, -- e.g., 'succeeded', 'pending', 'failed'
+    payment_processor_id TEXT UNIQUE, -- ID from your payment processor (e.g., Stripe Payment Intent ID)
+    paid_at TIMESTAMP,
+    created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
+);
+
+CREATE INDEX idx_sites_user_id ON sites(user_id);
+CREATE INDEX idx_payments_user_id ON payments(user_id);
+CREATE INDEX idx_users_oidc_subject ON users(oidc_subject);
+CREATE INDEX idx_sites_domain ON sites(domain);
+CREATE INDEX idx_payments_payment_processor_id ON payments(payment_processor_id);
+
+CREATE TRIGGER trigger_users_updated_at
+AFTER UPDATE ON users
+FOR EACH ROW
+BEGIN
+    UPDATE users SET updated_at = CURRENT_TIMESTAMP WHERE id = OLD.id;
+END;
+
+CREATE TRIGGER trigger_sites_updated_at
+AFTER UPDATE ON sites
+FOR EACH ROW
+BEGIN
+    UPDATE sites SET updated_at = CURRENT_TIMESTAMP WHERE id = OLD.id;
+END;
+
+CREATE TRIGGER trigger_payments_updated_at
+AFTER UPDATE ON payments
+FOR EACH ROW
+BEGIN
+    UPDATE payments SET updated_at = CURRENT_TIMESTAMP WHERE id = OLD.id;
+END;
+
+-- +goose Down
+DROP TRIGGER IF EXISTS trigger_payments_updated_at;
+DROP TRIGGER IF EXISTS trigger_sites_updated_at;
+DROP TRIGGER IF EXISTS trigger_users_updated_at;
+DROP INDEX IF EXISTS idx_payments_payment_processor_id;
+DROP INDEX IF EXISTS idx_sites_domain;
+DROP INDEX IF EXISTS idx_users_oidc_subject;
+DROP INDEX IF EXISTS idx_payments_user_id;
+DROP INDEX IF EXISTS idx_sites_user_id;
+DROP TABLE IF EXISTS payments;
+DROP TABLE IF EXISTS sites;
+DROP TABLE IF EXISTS users;