-- ============================================================================
-- Migration 050: CannaiQ Canonical Schema v2
-- ============================================================================
--
-- Purpose: Add canonical tables for multi-state analytics, pricing engine,
--          promotions, intelligence, and brand/buyer portals.
--
-- RULES:
--   - STRICTLY ADDITIVE (no DROP, DELETE, TRUNCATE, or ALTER column type)
--   - All new tables use IF NOT EXISTS
--   - All new columns use ADD COLUMN IF NOT EXISTS
--   - All indexes use IF NOT EXISTS
--   - Compatible with existing dutchie_products, dispensaries, etc.
--
-- Run with:
--   psql $CANNAIQ_DB_URL -f migrations/050_cannaiq_canonical_v2.sql
--
-- ============================================================================


-- ============================================================================
-- SECTION 1: STATES TABLE
-- ============================================================================
-- Reference table for US states. Already may exist from 041/043.
-- This is idempotent.

CREATE TABLE IF NOT EXISTS states (
    id SERIAL PRIMARY KEY,
    code VARCHAR(2) NOT NULL UNIQUE,
    name VARCHAR(100) NOT NULL,
    timezone VARCHAR(50) DEFAULT 'America/Phoenix',
    is_active BOOLEAN DEFAULT TRUE,
    crawl_enabled BOOLEAN DEFAULT TRUE,
    created_at TIMESTAMPTZ DEFAULT NOW(),
    updated_at TIMESTAMPTZ DEFAULT NOW()
);

-- Insert states if not present
INSERT INTO states (code, name, timezone) VALUES
    ('AZ', 'Arizona', 'America/Phoenix'),
    ('CA', 'California', 'America/Los_Angeles'),
    ('CO', 'Colorado', 'America/Denver'),
    ('FL', 'Florida', 'America/New_York'),
    ('IL', 'Illinois', 'America/Chicago'),
    ('MA', 'Massachusetts', 'America/New_York'),
    ('MD', 'Maryland', 'America/New_York'),
    ('MI', 'Michigan', 'America/Detroit'),
    ('MO', 'Missouri', 'America/Chicago'),
    ('NV', 'Nevada', 'America/Los_Angeles'),
    ('NJ', 'New Jersey', 'America/New_York'),
    ('NY', 'New York', 'America/New_York'),
    ('OH', 'Ohio', 'America/New_York'),
    ('OK', 'Oklahoma', 'America/Chicago'),
    ('OR', 'Oregon', 'America/Los_Angeles'),
    ('PA', 'Pennsylvania', 'America/New_York'),
    ('WA', 'Washington', 'America/Los_Angeles')
ON CONFLICT (code) DO UPDATE SET
    timezone = EXCLUDED.timezone,
    updated_at = NOW();

CREATE INDEX IF NOT EXISTS idx_states_code ON states(code);
CREATE INDEX IF NOT EXISTS idx_states_active ON states(is_active) WHERE is_active = TRUE;

COMMENT ON TABLE states IS 'US states where CannaiQ operates. Single source of truth for state configuration.';


-- ============================================================================
-- SECTION 2: CHAINS TABLE (Retail Groups)
-- ============================================================================
-- Chains are multi-location operators like Curaleaf, Trulieve, Harvest, etc.

CREATE TABLE IF NOT EXISTS chains (
    id SERIAL PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
    slug VARCHAR(255) NOT NULL UNIQUE,

    -- Branding
    website_url TEXT,
    logo_url TEXT,
    description TEXT,

    -- Business info
    headquarters_city VARCHAR(100),
    headquarters_state_id INTEGER REFERENCES states(id),
    founded_year INTEGER,

    -- Status
    is_active BOOLEAN DEFAULT TRUE,
    is_public BOOLEAN DEFAULT FALSE,            -- Publicly traded?
    stock_ticker VARCHAR(10),

    -- Metadata
    created_at TIMESTAMPTZ DEFAULT NOW(),
    updated_at TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_chains_slug ON chains(slug);
CREATE INDEX IF NOT EXISTS idx_chains_active ON chains(is_active) WHERE is_active = TRUE;

COMMENT ON TABLE chains IS 'Retail chains/groups that own multiple dispensary locations.';


-- ============================================================================
-- SECTION 3: CANONICAL BRANDS TABLE
-- ============================================================================
-- This is the master brand catalog across all providers and states.
-- Distinct from the per-store `brands` table which tracks store-level brand presence.

CREATE TABLE IF NOT EXISTS canonical_brands (
    id SERIAL PRIMARY KEY,
    name VARCHAR(255) NOT NULL,
    slug VARCHAR(255) NOT NULL UNIQUE,

    -- External IDs from various platforms
    dutchie_brand_id VARCHAR(100),
    jane_brand_id VARCHAR(100),
    treez_brand_id VARCHAR(100),
    weedmaps_brand_id VARCHAR(100),

    -- Branding
    logo_url TEXT,
    local_logo_path TEXT,                       -- Local storage path
    website_url TEXT,
    instagram_handle VARCHAR(100),
    description TEXT,

    -- Classification
    is_portfolio_brand BOOLEAN DEFAULT FALSE,   -- TRUE if brand we represent
    is_house_brand BOOLEAN DEFAULT FALSE,       -- TRUE if dispensary house brand
    parent_company VARCHAR(255),                -- Parent company name if subsidiary

    -- State presence
    states_available TEXT[],                    -- Array of state codes where brand is present

    -- Status
    is_active BOOLEAN DEFAULT TRUE,
    is_verified BOOLEAN DEFAULT FALSE,          -- Manually verified brand info
    verified_at TIMESTAMPTZ,

    -- Metadata
    created_at TIMESTAMPTZ DEFAULT NOW(),
    updated_at TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_canonical_brands_slug ON canonical_brands(slug);
CREATE INDEX IF NOT EXISTS idx_canonical_brands_dutchie ON canonical_brands(dutchie_brand_id) WHERE dutchie_brand_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_canonical_brands_portfolio ON canonical_brands(is_portfolio_brand) WHERE is_portfolio_brand = TRUE;
CREATE INDEX IF NOT EXISTS idx_canonical_brands_states ON canonical_brands USING GIN(states_available);

COMMENT ON TABLE canonical_brands IS 'Canonical brand catalog across all providers. Master brand reference.';
COMMENT ON COLUMN canonical_brands.is_portfolio_brand IS 'TRUE if this is a brand CannaiQ represents/manages.';


-- ============================================================================
-- SECTION 4: CRAWL_RUNS TABLE
-- ============================================================================
-- One record per crawl execution. Links to snapshots.

CREATE TABLE IF NOT EXISTS crawl_runs (
    id SERIAL PRIMARY KEY,
    dispensary_id INTEGER NOT NULL REFERENCES dispensaries(id) ON DELETE CASCADE,
    state_id INTEGER REFERENCES states(id),

    -- Provider info
    provider VARCHAR(50) NOT NULL DEFAULT 'dutchie',

    -- Timing
    started_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
    finished_at TIMESTAMPTZ,
    duration_ms INTEGER,

    -- Status
    status VARCHAR(20) NOT NULL DEFAULT 'running',  -- running, success, failed, partial
    error_code VARCHAR(50),
    error_message TEXT,
    http_status INTEGER,

    -- Results
    products_found INTEGER DEFAULT 0,
    products_new INTEGER DEFAULT 0,
    products_updated INTEGER DEFAULT 0,
    products_missing INTEGER DEFAULT 0,             -- Products gone from feed
    snapshots_written INTEGER DEFAULT 0,

    -- Infrastructure
    worker_id VARCHAR(100),
    worker_hostname VARCHAR(100),
    proxy_used TEXT,
    trigger_type VARCHAR(50) DEFAULT 'scheduled',   -- scheduled, manual, api

    -- Metadata
    metadata JSONB DEFAULT '{}',

    created_at TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_crawl_runs_dispensary ON crawl_runs(dispensary_id);
CREATE INDEX IF NOT EXISTS idx_crawl_runs_state ON crawl_runs(state_id) WHERE state_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_crawl_runs_status ON crawl_runs(status);
CREATE INDEX IF NOT EXISTS idx_crawl_runs_started ON crawl_runs(started_at DESC);
CREATE INDEX IF NOT EXISTS idx_crawl_runs_dispensary_started ON crawl_runs(dispensary_id, started_at DESC);

COMMENT ON TABLE crawl_runs IS 'Each crawl execution. Links to snapshots and traces.';


-- ============================================================================
-- SECTION 5: STORE_PRODUCTS TABLE (Current Menu State)
-- ============================================================================
-- Canonical representation of what's currently on the menu.
-- Provider-agnostic structure for analytics.

CREATE TABLE IF NOT EXISTS store_products (
    id SERIAL PRIMARY KEY,
    dispensary_id INTEGER NOT NULL REFERENCES dispensaries(id) ON DELETE CASCADE,
    state_id INTEGER REFERENCES states(id),

    -- Links to canonical entities
    canonical_brand_id INTEGER REFERENCES canonical_brands(id) ON DELETE SET NULL,
    category_id INTEGER REFERENCES categories(id) ON DELETE SET NULL,

    -- Provider-specific identifiers
    provider VARCHAR(50) NOT NULL DEFAULT 'dutchie',
    provider_product_id VARCHAR(100) NOT NULL,      -- Platform product ID
    provider_brand_id VARCHAR(100),                  -- Platform brand ID
    enterprise_product_id VARCHAR(100),              -- Cross-store product ID

    -- Raw data from platform (not normalized)
    name VARCHAR(500) NOT NULL,
    brand_name VARCHAR(255),
    category VARCHAR(100),
    subcategory VARCHAR(100),
    strain_type VARCHAR(50),
    description TEXT,

    -- Pricing (current)
    price_rec NUMERIC(10,2),
    price_med NUMERIC(10,2),
    price_rec_special NUMERIC(10,2),
    price_med_special NUMERIC(10,2),
    is_on_special BOOLEAN DEFAULT FALSE,
    special_name TEXT,
    discount_percent NUMERIC(5,2),
    price_unit VARCHAR(20) DEFAULT 'each',          -- gram, ounce, each, mg

    -- Inventory
    is_in_stock BOOLEAN DEFAULT TRUE,
    stock_quantity INTEGER,
    stock_status VARCHAR(50) DEFAULT 'in_stock',    -- in_stock, out_of_stock, low_stock, missing_from_feed

    -- Potency
    thc_percent NUMERIC(5,2),
    cbd_percent NUMERIC(5,2),
    thc_mg NUMERIC(10,2),
    cbd_mg NUMERIC(10,2),

    -- Weight/Size
    weight_value NUMERIC(10,2),
    weight_unit VARCHAR(20),                        -- g, oz, mg

    -- Images
    image_url TEXT,
    local_image_path TEXT,
    thumbnail_url TEXT,

    -- Flags
    is_featured BOOLEAN DEFAULT FALSE,
    medical_only BOOLEAN DEFAULT FALSE,
    rec_only BOOLEAN DEFAULT FALSE,

    -- Menu position (for tracking prominence)
    menu_position INTEGER,

    -- Timestamps
    first_seen_at TIMESTAMPTZ DEFAULT NOW(),
    last_seen_at TIMESTAMPTZ DEFAULT NOW(),
    last_price_change_at TIMESTAMPTZ,
    last_stock_change_at TIMESTAMPTZ,

    created_at TIMESTAMPTZ DEFAULT NOW(),
    updated_at TIMESTAMPTZ DEFAULT NOW(),

    UNIQUE(dispensary_id, provider, provider_product_id)
);

CREATE INDEX IF NOT EXISTS idx_store_products_dispensary ON store_products(dispensary_id);
CREATE INDEX IF NOT EXISTS idx_store_products_state ON store_products(state_id) WHERE state_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_store_products_brand ON store_products(canonical_brand_id) WHERE canonical_brand_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_store_products_category ON store_products(category) WHERE category IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_store_products_in_stock ON store_products(dispensary_id, is_in_stock);
CREATE INDEX IF NOT EXISTS idx_store_products_special ON store_products(dispensary_id, is_on_special) WHERE is_on_special = TRUE;
CREATE INDEX IF NOT EXISTS idx_store_products_last_seen ON store_products(last_seen_at DESC);
CREATE INDEX IF NOT EXISTS idx_store_products_provider ON store_products(provider);
CREATE INDEX IF NOT EXISTS idx_store_products_enterprise ON store_products(enterprise_product_id) WHERE enterprise_product_id IS NOT NULL;

COMMENT ON TABLE store_products IS 'Current state of products on each dispensary menu. Provider-agnostic.';


-- ============================================================================
-- SECTION 6: STORE_PRODUCT_SNAPSHOTS TABLE (Historical Data)
-- ============================================================================
-- Time-series data for analytics. One row per product per crawl.
-- CRITICAL: NEVER DELETE from this table.

CREATE TABLE IF NOT EXISTS store_product_snapshots (
    id SERIAL PRIMARY KEY,
    dispensary_id INTEGER NOT NULL REFERENCES dispensaries(id) ON DELETE CASCADE,
    store_product_id INTEGER REFERENCES store_products(id) ON DELETE SET NULL,
    state_id INTEGER REFERENCES states(id),

    -- Provider info
    provider VARCHAR(50) NOT NULL DEFAULT 'dutchie',
    provider_product_id VARCHAR(100),

    -- Link to crawl run
    crawl_run_id INTEGER REFERENCES crawl_runs(id) ON DELETE SET NULL,

    -- Capture timestamp
    captured_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),

    -- Raw data from platform
    name VARCHAR(500),
    brand_name VARCHAR(255),
    category VARCHAR(100),
    subcategory VARCHAR(100),

    -- Pricing at time of capture
    price_rec NUMERIC(10,2),
    price_med NUMERIC(10,2),
    price_rec_special NUMERIC(10,2),
    price_med_special NUMERIC(10,2),
    is_on_special BOOLEAN DEFAULT FALSE,
    discount_percent NUMERIC(5,2),

    -- Inventory at time of capture
    is_in_stock BOOLEAN DEFAULT TRUE,
    stock_quantity INTEGER,
    stock_status VARCHAR(50) DEFAULT 'in_stock',
    is_present_in_feed BOOLEAN DEFAULT TRUE,        -- FALSE = missing from feed

    -- Potency at time of capture
    thc_percent NUMERIC(5,2),
    cbd_percent NUMERIC(5,2),

    -- Menu position (for tracking prominence changes)
    menu_position INTEGER,

    -- Image URL at time of capture
    image_url TEXT,

    -- Full raw response for debugging
    raw_data JSONB,

    created_at TIMESTAMPTZ DEFAULT NOW()
);

-- Partitioning-ready indexes (for future table partitioning by month)
CREATE INDEX IF NOT EXISTS idx_snapshots_dispensary_captured ON store_product_snapshots(dispensary_id, captured_at DESC);
CREATE INDEX IF NOT EXISTS idx_snapshots_state_captured ON store_product_snapshots(state_id, captured_at DESC) WHERE state_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_snapshots_product_captured ON store_product_snapshots(store_product_id, captured_at DESC) WHERE store_product_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_snapshots_crawl_run ON store_product_snapshots(crawl_run_id) WHERE crawl_run_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_snapshots_captured_at ON store_product_snapshots(captured_at DESC);
CREATE INDEX IF NOT EXISTS idx_snapshots_brand ON store_product_snapshots(brand_name) WHERE brand_name IS NOT NULL;

COMMENT ON TABLE store_product_snapshots IS 'Historical crawl data. One row per product per crawl. NEVER DELETE.';


-- ============================================================================
-- SECTION 7: ADD state_id AND chain_id TO DISPENSARIES
-- ============================================================================
-- Link dispensaries to states and chains tables.

ALTER TABLE dispensaries ADD COLUMN IF NOT EXISTS state_id INTEGER REFERENCES states(id);
ALTER TABLE dispensaries ADD COLUMN IF NOT EXISTS chain_id INTEGER REFERENCES chains(id);

CREATE INDEX IF NOT EXISTS idx_dispensaries_state_id ON dispensaries(state_id);
CREATE INDEX IF NOT EXISTS idx_dispensaries_chain_id ON dispensaries(chain_id) WHERE chain_id IS NOT NULL;

-- Backfill state_id from existing state column
UPDATE dispensaries d
SET state_id = s.id
FROM states s
WHERE d.state = s.code
  AND d.state_id IS NULL;

COMMENT ON COLUMN dispensaries.state_id IS 'FK to states table. Canonical state reference.';
COMMENT ON COLUMN dispensaries.chain_id IS 'FK to chains table. NULL if independent dispensary.';


-- ============================================================================
-- SECTION 8: BRAND PENETRATION TABLE
-- ============================================================================
-- Pre-computed brand presence across stores for analytics dashboards.

CREATE TABLE IF NOT EXISTS brand_penetration (
    id SERIAL PRIMARY KEY,
    canonical_brand_id INTEGER NOT NULL REFERENCES canonical_brands(id) ON DELETE CASCADE,
    state_id INTEGER NOT NULL REFERENCES states(id) ON DELETE CASCADE,

    -- Metrics
    stores_carrying INTEGER DEFAULT 0,
    stores_total INTEGER DEFAULT 0,
    penetration_pct NUMERIC(5,2) DEFAULT 0,

    -- Product breakdown
    products_count INTEGER DEFAULT 0,
    products_in_stock INTEGER DEFAULT 0,
    products_on_special INTEGER DEFAULT 0,

    -- Pricing
    avg_price NUMERIC(10,2),
    min_price NUMERIC(10,2),
    max_price NUMERIC(10,2),

    -- Time range
    calculated_at TIMESTAMPTZ DEFAULT NOW(),
    period_start TIMESTAMPTZ,
    period_end TIMESTAMPTZ,

    UNIQUE(canonical_brand_id, state_id, calculated_at)
);

CREATE INDEX IF NOT EXISTS idx_brand_penetration_brand ON brand_penetration(canonical_brand_id);
CREATE INDEX IF NOT EXISTS idx_brand_penetration_state ON brand_penetration(state_id);
CREATE INDEX IF NOT EXISTS idx_brand_penetration_calculated ON brand_penetration(calculated_at DESC);

COMMENT ON TABLE brand_penetration IS 'Pre-computed brand penetration metrics by state.';


-- ============================================================================
-- SECTION 9: PRICE_ALERTS TABLE
-- ============================================================================
-- Track significant price changes for intelligence/alerts.

CREATE TABLE IF NOT EXISTS price_alerts (
    id SERIAL PRIMARY KEY,
    store_product_id INTEGER REFERENCES store_products(id) ON DELETE CASCADE,
    dispensary_id INTEGER NOT NULL REFERENCES dispensaries(id) ON DELETE CASCADE,
    state_id INTEGER REFERENCES states(id),

    -- What changed
    alert_type VARCHAR(50) NOT NULL,                -- price_drop, price_increase, new_special, special_ended

    -- Values
    old_price NUMERIC(10,2),
    new_price NUMERIC(10,2),
    change_amount NUMERIC(10,2),
    change_percent NUMERIC(5,2),

    -- Context
    product_name VARCHAR(500),
    brand_name VARCHAR(255),
    category VARCHAR(100),

    -- Status
    is_processed BOOLEAN DEFAULT FALSE,
    processed_at TIMESTAMPTZ,

    created_at TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_price_alerts_dispensary ON price_alerts(dispensary_id);
CREATE INDEX IF NOT EXISTS idx_price_alerts_state ON price_alerts(state_id) WHERE state_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_price_alerts_type ON price_alerts(alert_type);
CREATE INDEX IF NOT EXISTS idx_price_alerts_unprocessed ON price_alerts(is_processed) WHERE is_processed = FALSE;
CREATE INDEX IF NOT EXISTS idx_price_alerts_created ON price_alerts(created_at DESC);

COMMENT ON TABLE price_alerts IS 'Significant price changes for intelligence/alerting.';


-- ============================================================================
-- SECTION 10: RAW_PAYLOADS TABLE
-- ============================================================================
-- Store raw API responses for replay/debugging. Separate from snapshots.

CREATE TABLE IF NOT EXISTS raw_payloads (
    id SERIAL PRIMARY KEY,
    dispensary_id INTEGER NOT NULL REFERENCES dispensaries(id) ON DELETE CASCADE,
    crawl_run_id INTEGER REFERENCES crawl_runs(id) ON DELETE SET NULL,

    -- Payload info
    provider VARCHAR(50) NOT NULL DEFAULT 'dutchie',
    payload_type VARCHAR(50) NOT NULL DEFAULT 'products',  -- products, brands, specials

    -- The raw data
    payload JSONB NOT NULL,
    payload_size_bytes INTEGER,

    -- Deduplication
    payload_hash VARCHAR(64),                       -- SHA256 for deduplication

    -- Processing status
    is_processed BOOLEAN DEFAULT FALSE,
    processed_at TIMESTAMPTZ,

    captured_at TIMESTAMPTZ DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_raw_payloads_dispensary ON raw_payloads(dispensary_id, captured_at DESC);
CREATE INDEX IF NOT EXISTS idx_raw_payloads_crawl_run ON raw_payloads(crawl_run_id) WHERE crawl_run_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_raw_payloads_unprocessed ON raw_payloads(is_processed) WHERE is_processed = FALSE;
CREATE INDEX IF NOT EXISTS idx_raw_payloads_hash ON raw_payloads(payload_hash) WHERE payload_hash IS NOT NULL;

COMMENT ON TABLE raw_payloads IS 'Raw API responses for replay/debugging. Enables re-hydration.';


-- ============================================================================
-- SECTION 11: ANALYTICS CACHE TABLES
-- ============================================================================
-- Pre-computed analytics for dashboard performance.

-- Daily store metrics
CREATE TABLE IF NOT EXISTS analytics_store_daily (
    id SERIAL PRIMARY KEY,
    dispensary_id INTEGER NOT NULL REFERENCES dispensaries(id) ON DELETE CASCADE,
    state_id INTEGER REFERENCES states(id),
    date DATE NOT NULL,

    -- Product counts
    total_products INTEGER DEFAULT 0,
    in_stock_products INTEGER DEFAULT 0,
    out_of_stock_products INTEGER DEFAULT 0,
    on_special_products INTEGER DEFAULT 0,

    -- Brand/category diversity
    unique_brands INTEGER DEFAULT 0,
    unique_categories INTEGER DEFAULT 0,

    -- Pricing
    avg_price NUMERIC(10,2),
    median_price NUMERIC(10,2),

    -- Crawl health
    crawl_count INTEGER DEFAULT 0,
    successful_crawls INTEGER DEFAULT 0,

    created_at TIMESTAMPTZ DEFAULT NOW(),

    UNIQUE(dispensary_id, date)
);

CREATE INDEX IF NOT EXISTS idx_analytics_store_daily_dispensary ON analytics_store_daily(dispensary_id, date DESC);
CREATE INDEX IF NOT EXISTS idx_analytics_store_daily_state ON analytics_store_daily(state_id, date DESC) WHERE state_id IS NOT NULL;
CREATE INDEX IF NOT EXISTS idx_analytics_store_daily_date ON analytics_store_daily(date DESC);


-- Daily brand metrics
CREATE TABLE IF NOT EXISTS analytics_brand_daily (
    id SERIAL PRIMARY KEY,
    canonical_brand_id INTEGER NOT NULL REFERENCES canonical_brands(id) ON DELETE CASCADE,
    state_id INTEGER REFERENCES states(id),
    date DATE NOT NULL,

    -- Presence
    stores_carrying INTEGER DEFAULT 0,
    products_count INTEGER DEFAULT 0,

    -- Stock
    in_stock_count INTEGER DEFAULT 0,
    out_of_stock_count INTEGER DEFAULT 0,

    -- Pricing
    avg_price NUMERIC(10,2),
    min_price NUMERIC(10,2),
    max_price NUMERIC(10,2),
    on_special_count INTEGER DEFAULT 0,

    created_at TIMESTAMPTZ DEFAULT NOW(),

    UNIQUE(canonical_brand_id, state_id, date)
);

CREATE INDEX IF NOT EXISTS idx_analytics_brand_daily_brand ON analytics_brand_daily(canonical_brand_id, date DESC);
CREATE INDEX IF NOT EXISTS idx_analytics_brand_daily_state ON analytics_brand_daily(state_id, date DESC) WHERE state_id IS NOT NULL;


-- ============================================================================
-- SECTION 12: VIEWS FOR COMPATIBILITY
-- ============================================================================

-- View: Latest snapshot per store product
CREATE OR REPLACE VIEW v_latest_store_snapshots AS
SELECT DISTINCT ON (dispensary_id, provider_product_id)
    sps.*
FROM store_product_snapshots sps
ORDER BY dispensary_id, provider_product_id, captured_at DESC;

-- View: Crawl run summary per dispensary
CREATE OR REPLACE VIEW v_dispensary_crawl_summary AS
SELECT
    d.id AS dispensary_id,
    COALESCE(d.dba_name, d.name) AS dispensary_name,
    d.city,
    d.state,
    d.state_id,
    s.name AS state_name,
    COUNT(DISTINCT sp.id) AS current_product_count,
    COUNT(DISTINCT sp.id) FILTER (WHERE sp.is_in_stock) AS in_stock_count,
    COUNT(DISTINCT sp.id) FILTER (WHERE sp.is_on_special) AS on_special_count,
    MAX(cr.finished_at) AS last_crawl_at,
    (SELECT status FROM crawl_runs WHERE dispensary_id = d.id ORDER BY started_at DESC LIMIT 1) AS last_crawl_status
FROM dispensaries d
LEFT JOIN states s ON s.id = d.state_id
LEFT JOIN store_products sp ON sp.dispensary_id = d.id
LEFT JOIN crawl_runs cr ON cr.dispensary_id = d.id
GROUP BY d.id, d.dba_name, d.name, d.city, d.state, d.state_id, s.name;

-- View: Brand presence across stores
CREATE OR REPLACE VIEW v_brand_store_presence AS
SELECT
    cb.id AS brand_id,
    cb.name AS brand_name,
    cb.slug AS brand_slug,
    s.id AS state_id,
    s.code AS state_code,
    COUNT(DISTINCT sp.dispensary_id) AS store_count,
    COUNT(sp.id) AS product_count,
    COUNT(sp.id) FILTER (WHERE sp.is_in_stock) AS in_stock_count,
    AVG(sp.price_rec) AS avg_price,
    MIN(sp.price_rec) AS min_price,
    MAX(sp.price_rec) AS max_price
FROM canonical_brands cb
JOIN store_products sp ON sp.canonical_brand_id = cb.id
LEFT JOIN states s ON s.id = sp.state_id
GROUP BY cb.id, cb.name, cb.slug, s.id, s.code;


-- ============================================================================
-- SECTION 13: ADD FK FROM store_product_snapshots TO crawl_runs
-- ============================================================================

DO $$
BEGIN
    IF NOT EXISTS (
        SELECT 1 FROM information_schema.table_constraints
        WHERE constraint_name = 'store_product_snapshots_crawl_run_id_fkey'
    ) THEN
        ALTER TABLE store_product_snapshots
        ADD CONSTRAINT store_product_snapshots_crawl_run_id_fkey
        FOREIGN KEY (crawl_run_id) REFERENCES crawl_runs(id) ON DELETE SET NULL;
    END IF;
END $$;


-- ============================================================================
-- SECTION 14: ADD crawl_run_id TO crawl_orchestration_traces
-- ============================================================================

ALTER TABLE crawl_orchestration_traces
    ADD COLUMN IF NOT EXISTS crawl_run_id INTEGER REFERENCES crawl_runs(id) ON DELETE SET NULL;

CREATE INDEX IF NOT EXISTS idx_traces_crawl_run
    ON crawl_orchestration_traces(crawl_run_id)
    WHERE crawl_run_id IS NOT NULL;


-- ============================================================================
-- SECTION 15: UPDATE dispensary_crawler_profiles
-- ============================================================================
-- Add status columns for profile lifecycle.

ALTER TABLE dispensary_crawler_profiles
    ADD COLUMN IF NOT EXISTS status VARCHAR(50) DEFAULT 'sandbox';

ALTER TABLE dispensary_crawler_profiles
    ADD COLUMN IF NOT EXISTS allow_autopromote BOOLEAN DEFAULT FALSE;

ALTER TABLE dispensary_crawler_profiles
    ADD COLUMN IF NOT EXISTS validated_at TIMESTAMPTZ;

CREATE INDEX IF NOT EXISTS idx_profiles_status
    ON dispensary_crawler_profiles(status);

COMMENT ON COLUMN dispensary_crawler_profiles.status IS 'Profile status: sandbox, production, needs_manual, disabled';


-- ============================================================================
-- SECTION 16: UPDATE dispensary_crawl_jobs WITH ADDITIONAL COLUMNS
-- ============================================================================
-- Add columns needed for enhanced job tracking.

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS worker_id VARCHAR(100);

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS worker_hostname VARCHAR(100);

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS claimed_by VARCHAR(100);

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS claimed_at TIMESTAMPTZ;

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS locked_until TIMESTAMPTZ;

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS last_heartbeat_at TIMESTAMPTZ;

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS max_retries INTEGER DEFAULT 3;

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS products_upserted INTEGER DEFAULT 0;

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS snapshots_created INTEGER DEFAULT 0;

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS current_page INTEGER DEFAULT 0;

ALTER TABLE dispensary_crawl_jobs
    ADD COLUMN IF NOT EXISTS total_pages INTEGER;

CREATE INDEX IF NOT EXISTS idx_crawl_jobs_status_pending ON dispensary_crawl_jobs(status) WHERE status = 'pending';
CREATE INDEX IF NOT EXISTS idx_crawl_jobs_claimed_by ON dispensary_crawl_jobs(claimed_by) WHERE claimed_by IS NOT NULL;


-- ============================================================================
-- SECTION 17: QUEUE MONITORING VIEWS
-- ============================================================================

CREATE OR REPLACE VIEW v_queue_stats AS
SELECT
    (SELECT COUNT(*) FROM dispensary_crawl_jobs WHERE status = 'pending') AS pending_jobs,
    (SELECT COUNT(*) FROM dispensary_crawl_jobs WHERE status = 'running') AS running_jobs,
    (SELECT COUNT(*) FROM dispensary_crawl_jobs WHERE status = 'completed' AND completed_at > NOW() - INTERVAL '1 hour') AS completed_1h,
    (SELECT COUNT(*) FROM dispensary_crawl_jobs WHERE status = 'failed' AND completed_at > NOW() - INTERVAL '1 hour') AS failed_1h,
    (SELECT COUNT(DISTINCT worker_id) FROM dispensary_crawl_jobs WHERE status = 'running' AND worker_id IS NOT NULL) AS active_workers,
    (SELECT AVG(EXTRACT(EPOCH FROM (completed_at - started_at))) FROM dispensary_crawl_jobs WHERE status = 'completed' AND completed_at > NOW() - INTERVAL '1 hour') AS avg_duration_seconds;

CREATE OR REPLACE VIEW v_active_workers AS
SELECT
    worker_id,
    worker_hostname,
    COUNT(*) AS current_jobs,
    SUM(products_found) AS total_products_found,
    SUM(products_upserted) AS total_products_upserted,
    SUM(snapshots_created) AS total_snapshots,
    MIN(claimed_at) AS first_claimed_at,
    MAX(last_heartbeat_at) AS last_heartbeat
FROM dispensary_crawl_jobs
WHERE status = 'running' AND worker_id IS NOT NULL
GROUP BY worker_id, worker_hostname;


-- ============================================================================
-- DONE
-- ============================================================================

SELECT 'Migration 050 completed successfully. Canonical schema v2 is ready.' AS status;