-- User Profiles Table
-- Stores onboarding form data for each user
CREATE TABLE IF NOT EXISTS user_profiles (
  id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
  user_id UUID NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
  name TEXT NOT NULL,
  email TEXT NOT NULL,
  primary_goal TEXT,
  target_outcome TEXT,
  data_types TEXT[],
  profession TEXT,
  experience TEXT,
  industry TEXT,
  onboarding_completed BOOLEAN DEFAULT FALSE,
  created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
  updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
  UNIQUE(user_id)
);

-- Index for faster lookups
CREATE INDEX IF NOT EXISTS idx_user_profiles_user_id ON user_profiles(user_id);

-- RLS (Row Level Security) Policies
ALTER TABLE user_profiles ENABLE ROW LEVEL SECURITY;

-- Allow users to read their own profile
CREATE POLICY "Users can read own profile" ON user_profiles
  FOR SELECT USING (auth.uid() = user_id);

-- Allow users to insert their own profile
CREATE POLICY "Users can insert own profile" ON user_profiles
  FOR INSERT WITH CHECK (auth.uid() = user_id);

-- Allow users to update their own profile
CREATE POLICY "Users can update own profile" ON user_profiles
  FOR UPDATE USING (auth.uid() = user_id);

-- Usage Analytics Table (if not exists)
CREATE TABLE IF NOT EXISTS usage_analytics (
  id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
  user_id TEXT NOT NULL,
  user_email TEXT,
  session_id TEXT NOT NULL,
  query TEXT NOT NULL,
  agent_used TEXT,
  tools_executed TEXT[],
  tokens_used INTEGER,
  duration_ms INTEGER,
  success BOOLEAN NOT NULL,
  error_message TEXT,
  created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_usage_analytics_user_id ON usage_analytics(user_id);
CREATE INDEX IF NOT EXISTS idx_usage_analytics_created_at ON usage_analytics(created_at);

-- User Sessions Table (if not exists)
CREATE TABLE IF NOT EXISTS user_sessions (
  id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
  user_id TEXT NOT NULL,
  user_email TEXT,
  started_at TIMESTAMP WITH TIME ZONE NOT NULL,
  ended_at TIMESTAMP WITH TIME ZONE,
  queries_count INTEGER DEFAULT 0,
  browser_info TEXT,
  created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_user_sessions_user_id ON user_sessions(user_id);
CREATE INDEX IF NOT EXISTS idx_user_sessions_started_at ON user_sessions(started_at);

-- RPC function for incrementing queries count
CREATE OR REPLACE FUNCTION increment_session_queries(session_id UUID)
RETURNS VOID AS $$
BEGIN
  UPDATE user_sessions 
  SET queries_count = queries_count + 1 
  WHERE id = session_id;
END;
$$ LANGUAGE plpgsql;