-- Visitor location analytics for Findagram
-- Tracks visitor locations to understand popular areas

CREATE TABLE IF NOT EXISTS visitor_locations (
  id SERIAL PRIMARY KEY,

  -- Location data (from IP lookup)
  ip_hash VARCHAR(64),           -- Hashed IP for privacy (SHA256)
  city VARCHAR(100),
  state VARCHAR(100),
  state_code VARCHAR(10),
  country VARCHAR(100),
  country_code VARCHAR(10),
  latitude DECIMAL(10, 7),
  longitude DECIMAL(10, 7),

  -- Visit metadata
  domain VARCHAR(50) NOT NULL,    -- 'findagram.co', 'findadispo.com', etc.
  page_path VARCHAR(255),         -- '/products', '/dispensaries/123', etc.
  referrer VARCHAR(500),
  user_agent VARCHAR(500),

  -- Session tracking
  session_id VARCHAR(64),         -- For grouping page views in a session

  -- Timestamps
  created_at TIMESTAMPTZ DEFAULT NOW()
);

-- Indexes for analytics queries
CREATE INDEX IF NOT EXISTS idx_visitor_locations_domain ON visitor_locations(domain);
CREATE INDEX IF NOT EXISTS idx_visitor_locations_city_state ON visitor_locations(city, state_code);
CREATE INDEX IF NOT EXISTS idx_visitor_locations_created_at ON visitor_locations(created_at);
CREATE INDEX IF NOT EXISTS idx_visitor_locations_session ON visitor_locations(session_id);

-- Aggregated daily stats (materialized for performance)
CREATE TABLE IF NOT EXISTS visitor_location_stats (
  id SERIAL PRIMARY KEY,
  date DATE NOT NULL,
  domain VARCHAR(50) NOT NULL,
  city VARCHAR(100),
  state VARCHAR(100),
  state_code VARCHAR(10),
  country_code VARCHAR(10),

  -- Metrics
  visit_count INTEGER DEFAULT 0,
  unique_sessions INTEGER DEFAULT 0,

  UNIQUE(date, domain, city, state_code, country_code)
);

CREATE INDEX IF NOT EXISTS idx_visitor_stats_date ON visitor_location_stats(date);
CREATE INDEX IF NOT EXISTS idx_visitor_stats_domain ON visitor_location_stats(domain);
CREATE INDEX IF NOT EXISTS idx_visitor_stats_state ON visitor_location_stats(state_code);

-- View for easy querying of top locations
CREATE OR REPLACE VIEW v_top_visitor_locations AS
SELECT
  domain,
  city,
  state,
  state_code,
  country_code,
  COUNT(*) as total_visits,
  COUNT(DISTINCT session_id) as unique_sessions,
  MAX(created_at) as last_visit
FROM visitor_locations
WHERE created_at > NOW() - INTERVAL '30 days'
GROUP BY domain, city, state, state_code, country_code
ORDER BY total_visits DESC;