-- Migration 055: Workforce System Enhancements
-- Adds visibility tracking, slug change tracking, and scope support for workers

-- ============================================================
-- 1. VISIBILITY TRACKING FOR BELLA (Product Sync)
-- ============================================================

-- Add visibility tracking to dutchie_products
ALTER TABLE dutchie_products
  ADD COLUMN IF NOT EXISTS visibility_lost BOOLEAN DEFAULT FALSE,
  ADD COLUMN IF NOT EXISTS visibility_lost_at TIMESTAMPTZ,
  ADD COLUMN IF NOT EXISTS visibility_restored_at TIMESTAMPTZ;

COMMENT ON COLUMN dutchie_products.visibility_lost IS 'True if product disappeared from GraphQL results';
COMMENT ON COLUMN dutchie_products.visibility_lost_at IS 'When product was last marked as visibility lost';
COMMENT ON COLUMN dutchie_products.visibility_restored_at IS 'When product reappeared after being lost';

-- Index for visibility queries
CREATE INDEX IF NOT EXISTS idx_dutchie_products_visibility_lost
  ON dutchie_products(dispensary_id, visibility_lost)
  WHERE visibility_lost = TRUE;

-- ============================================================
-- 2. SLUG CHANGE TRACKING FOR ALICE (Store Discovery)
-- ============================================================

-- Add slug change and retirement tracking to discovery locations
ALTER TABLE dutchie_discovery_locations
  ADD COLUMN IF NOT EXISTS slug_changed_at TIMESTAMPTZ,
  ADD COLUMN IF NOT EXISTS previous_slug VARCHAR(255),
  ADD COLUMN IF NOT EXISTS retired_at TIMESTAMPTZ,
  ADD COLUMN IF NOT EXISTS retirement_reason VARCHAR(100);

COMMENT ON COLUMN dutchie_discovery_locations.slug_changed_at IS 'When the platform slug was last changed';
COMMENT ON COLUMN dutchie_discovery_locations.previous_slug IS 'Previous slug before the last change';
COMMENT ON COLUMN dutchie_discovery_locations.retired_at IS 'When store was marked as retired/removed';
COMMENT ON COLUMN dutchie_discovery_locations.retirement_reason IS 'Reason for retirement (removed_from_source, closed, etc.)';

-- Index for finding retired stores
CREATE INDEX IF NOT EXISTS idx_dutchie_discovery_locations_retired
  ON dutchie_discovery_locations(retired_at)
  WHERE retired_at IS NOT NULL;

-- ============================================================
-- 3. ID RESOLUTION TRACKING FOR HENRY (Entry Point Finder)
-- ============================================================

-- Add resolution tracking to dispensaries
ALTER TABLE dispensaries
  ADD COLUMN IF NOT EXISTS last_id_resolution_at TIMESTAMPTZ,
  ADD COLUMN IF NOT EXISTS id_resolution_attempts INT DEFAULT 0,
  ADD COLUMN IF NOT EXISTS id_resolution_error TEXT;

COMMENT ON COLUMN dispensaries.last_id_resolution_at IS 'When platform_dispensary_id was last resolved/attempted';
COMMENT ON COLUMN dispensaries.id_resolution_attempts IS 'Number of resolution attempts';
COMMENT ON COLUMN dispensaries.id_resolution_error IS 'Last error message from resolution attempt';

-- Index for finding stores needing resolution
CREATE INDEX IF NOT EXISTS idx_dispensaries_needs_resolution
  ON dispensaries(state, menu_type)
  WHERE platform_dispensary_id IS NULL AND menu_type = 'dutchie';

-- ============================================================
-- 4. ENHANCED CITIES TABLE FOR ALICE
-- ============================================================

-- Add tracking columns to cities table
ALTER TABLE dutchie_discovery_cities
  ADD COLUMN IF NOT EXISTS state_name VARCHAR(100),
  ADD COLUMN IF NOT EXISTS discovered_at TIMESTAMPTZ DEFAULT NOW(),
  ADD COLUMN IF NOT EXISTS last_verified_at TIMESTAMPTZ,
  ADD COLUMN IF NOT EXISTS store_count_reported INT,
  ADD COLUMN IF NOT EXISTS store_count_actual INT;

COMMENT ON COLUMN dutchie_discovery_cities.state_name IS 'Full state name from source';
COMMENT ON COLUMN dutchie_discovery_cities.discovered_at IS 'When city was first discovered';
COMMENT ON COLUMN dutchie_discovery_cities.last_verified_at IS 'When city was last verified to exist';
COMMENT ON COLUMN dutchie_discovery_cities.store_count_reported IS 'Store count reported by source';
COMMENT ON COLUMN dutchie_discovery_cities.store_count_actual IS 'Actual store count from discovery';

-- ============================================================
-- 5. UPDATE WORKER ROLES (Standardize naming)
-- ============================================================

-- Update existing workers to use standardized role names
UPDATE job_schedules SET worker_role = 'store_discovery'
  WHERE worker_name = 'Alice' AND worker_role = 'Store Discovery';

UPDATE job_schedules SET worker_role = 'entry_point_finder'
  WHERE worker_name = 'Henry' AND worker_role = 'Entry Point Finder';

UPDATE job_schedules SET worker_role = 'product_sync'
  WHERE worker_name = 'Bella' AND worker_role = 'GraphQL Product Sync';

UPDATE job_schedules SET worker_role = 'analytics_refresh'
  WHERE worker_name = 'Oscar' AND worker_role = 'Analytics Refresh';

-- ============================================================
-- 6. VISIBILITY EVENTS IN SNAPSHOTS (JSONB approach)
-- ============================================================

-- Add visibility_events array to product snapshots metadata
-- This will store: [{event_type, timestamp, worker_name}]
-- No schema change needed - we use existing metadata JSONB column

-- ============================================================
-- 7. INDEXES FOR WORKER QUERIES
-- ============================================================

-- Index for finding recently added stores (for Henry)
CREATE INDEX IF NOT EXISTS idx_dutchie_discovery_locations_created
  ON dutchie_discovery_locations(created_at DESC)
  WHERE active = TRUE;

-- Index for scope-based queries (by state)
CREATE INDEX IF NOT EXISTS idx_dispensaries_state_menu
  ON dispensaries(state, menu_type)
  WHERE menu_type IS NOT NULL;

-- Record migration
INSERT INTO schema_migrations (version, name, applied_at)
VALUES (55, '055_workforce_enhancements', NOW())
ON CONFLICT (version) DO NOTHING;