-- TIP: Transceiver Intelligence Platform
-- Migration 004: Indexes

-- ============================================================
-- FULL-TEXT SEARCH INDEXES (GIN on tsvector)
-- ============================================================
CREATE INDEX IF NOT EXISTS idx_transceivers_search ON transceivers USING GIN(search_vector);
CREATE INDEX IF NOT EXISTS idx_switches_search ON switches USING GIN(search_vector);
CREATE INDEX IF NOT EXISTS idx_kb_search ON knowledge_base USING GIN(search_vector);
CREATE INDEX IF NOT EXISTS idx_news_search ON news_articles USING GIN(search_vector);

-- ============================================================
-- ARRAY INDEXES (GIN on text[])
-- ============================================================
CREATE INDEX IF NOT EXISTS idx_transceivers_tags ON transceivers USING GIN(tags);
CREATE INDEX IF NOT EXISTS idx_switches_tags ON switches USING GIN(tags);
CREATE INDEX IF NOT EXISTS idx_vendors_specialties ON vendors USING GIN(specialties);
CREATE INDEX IF NOT EXISTS idx_standards_form_factors ON standards USING GIN(form_factors);
CREATE INDEX IF NOT EXISTS idx_kb_form_factors ON knowledge_base USING GIN(applies_to_form_factors);
CREATE INDEX IF NOT EXISTS idx_kb_speeds ON knowledge_base USING GIN(applies_to_speeds);
CREATE INDEX IF NOT EXISTS idx_news_vendors ON news_articles USING GIN(mentioned_vendors);

-- ============================================================
-- JSONB INDEXES
-- ============================================================
CREATE INDEX IF NOT EXISTS idx_transceivers_vendor_compat ON transceivers USING GIN(vendor_compat);
CREATE INDEX IF NOT EXISTS idx_switches_ports ON switches USING GIN(ports_config);

-- ============================================================
-- B-TREE INDEXES (lookups, sorting)
-- ============================================================
CREATE INDEX IF NOT EXISTS idx_transceivers_form_factor ON transceivers(form_factor);
CREATE INDEX IF NOT EXISTS idx_transceivers_speed_gbps ON transceivers(speed_gbps);
CREATE INDEX IF NOT EXISTS idx_transceivers_category ON transceivers(category);
CREATE INDEX IF NOT EXISTS idx_transceivers_market_status ON transceivers(market_status);
CREATE INDEX IF NOT EXISTS idx_transceivers_reach ON transceivers(reach_meters);
CREATE INDEX IF NOT EXISTS idx_transceivers_fiber_type ON transceivers(fiber_type);
CREATE INDEX IF NOT EXISTS idx_transceivers_wdm_type ON transceivers(wdm_type);
CREATE INDEX IF NOT EXISTS idx_transceivers_coherent ON transceivers(coherent);

CREATE INDEX IF NOT EXISTS idx_switches_vendor ON switches(vendor_id);
CREATE INDEX IF NOT EXISTS idx_switches_category ON switches(category);
CREATE INDEX IF NOT EXISTS idx_switches_lifecycle ON switches(lifecycle_status);
CREATE INDEX IF NOT EXISTS idx_switches_max_speed ON switches(max_speed_gbps);

CREATE INDEX IF NOT EXISTS idx_compatibility_switch ON compatibility(switch_id);
CREATE INDEX IF NOT EXISTS idx_compatibility_transceiver ON compatibility(transceiver_id);

CREATE INDEX IF NOT EXISTS idx_documents_entity ON documents(entity_type, entity_id);
CREATE INDEX IF NOT EXISTS idx_documents_ocr_status ON documents(ocr_status);

CREATE INDEX IF NOT EXISTS idx_kb_category ON knowledge_base(category);
CREATE INDEX IF NOT EXISTS idx_kb_severity ON knowledge_base(severity);

CREATE INDEX IF NOT EXISTS idx_news_published ON news_articles(published_at DESC);
CREATE INDEX IF NOT EXISTS idx_news_category ON news_articles(category);
CREATE INDEX IF NOT EXISTS idx_news_event ON news_articles(event);

CREATE INDEX IF NOT EXISTS idx_vendors_type ON vendors(type);
CREATE INDEX IF NOT EXISTS idx_vendors_competitor ON vendors(is_competitor) WHERE is_competitor = TRUE;

-- ============================================================
-- TRIGRAM INDEXES (fuzzy search on names)
-- ============================================================
CREATE INDEX IF NOT EXISTS idx_vendors_name_trgm ON vendors USING GIN(name gin_trgm_ops);
CREATE INDEX IF NOT EXISTS idx_switches_model_trgm ON switches USING GIN(model gin_trgm_ops);
CREATE INDEX IF NOT EXISTS idx_standards_name_trgm ON standards USING GIN(name gin_trgm_ops);

-- ============================================================
-- TIMESERIES INDEXES
-- ============================================================
CREATE INDEX IF NOT EXISTS idx_price_transceiver ON price_observations(transceiver_id, time DESC);
CREATE INDEX IF NOT EXISTS idx_price_source ON price_observations(source_vendor_id, time DESC);
CREATE INDEX IF NOT EXISTS idx_stock_transceiver ON stock_observations(transceiver_id, time DESC);
CREATE INDEX IF NOT EXISTS idx_metrics_technology ON market_metrics(technology, metric_type, time DESC);