add sqlite

migrations/sqlite/20250125000000_init.sql

@@ -0,0 +1,42 @@
+-- Enable foreign key support
+PRAGMA foreign_keys = ON;
+
+-- Add Migration Version
+CREATE TABLE IF NOT EXISTS _sqlx_migrations (
+    version INTEGER PRIMARY KEY,
+    description TEXT NOT NULL,
+    installed_on TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+-- Create users table
+CREATE TABLE users (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    email VARCHAR(255) NOT NULL UNIQUE,
+    password_hash TEXT NOT NULL
+);
+
+-- Create links table
+CREATE TABLE links (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    original_url TEXT NOT NULL,
+    short_code VARCHAR(8) NOT NULL UNIQUE,
+    created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    clicks INTEGER NOT NULL DEFAULT 0,
+    user_id INTEGER,
+    FOREIGN KEY (user_id) REFERENCES users(id)
+);
+
+-- Create clicks table
+CREATE TABLE clicks (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    link_id INTEGER,
+    source TEXT,
+    query_source TEXT,
+    created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (link_id) REFERENCES links(id)
+);
+
+-- Create indexes
+CREATE INDEX idx_short_code ON links(short_code);
+CREATE INDEX idx_user_id ON links(user_id);
+CREATE INDEX idx_link_id ON clicks(link_id);