-- ============================================================
-- Phase 11: 全量物化视图 — 按月预计算所有慢函数
-- 数据导入后调用 analytics.refresh_all_monthly_views() 刷新
-- ============================================================

-- 1. mv_store_risk_rating_monthly
DROP MATERIALIZED VIEW IF EXISTS analytics.mv_store_risk_rating_monthly;
CREATE MATERIALIZED VIEW analytics.mv_store_risk_rating_monthly AS
SELECT m.month_start::date AS month_start, r.*
FROM generate_series(
  (SELECT date_trunc('month', min(closed_at))::date FROM analytics.bill_fact),
  (SELECT date_trunc('month', max(closed_at))::date FROM analytics.bill_fact),
  interval '1 month'
) AS m(month_start)
CROSS JOIN LATERAL analytics.fn_store_risk_rating(m.month_start::date) r;

CREATE UNIQUE INDEX idx_mv_risk_rating_month_store ON analytics.mv_store_risk_rating_monthly (month_start, store_code);
CREATE INDEX idx_mv_risk_rating_month ON analytics.mv_store_risk_rating_monthly (month_start);

-- ============================================================
-- 2. mv_store_platform_economics_monthly
-- ============================================================
DROP MATERIALIZED VIEW IF EXISTS analytics.mv_store_platform_economics_monthly;
CREATE MATERIALIZED VIEW analytics.mv_store_platform_economics_monthly AS
SELECT m.month_start::date AS month_start, r.*
FROM generate_series(
  (SELECT date_trunc('month', min(closed_at))::date FROM analytics.bill_fact),
  (SELECT date_trunc('month', max(closed_at))::date FROM analytics.bill_fact),
  interval '1 month'
) AS m(month_start)
CROSS JOIN LATERAL analytics.fn_store_platform_economics(m.month_start::date) r;

CREATE UNIQUE INDEX idx_mv_platform_econ_month_store ON analytics.mv_store_platform_economics_monthly (month_start, store_code);
CREATE INDEX idx_mv_platform_econ_month ON analytics.mv_store_platform_economics_monthly (month_start);

-- ============================================================
-- 3. mv_store_category_mix_monthly
-- ============================================================
DROP MATERIALIZED VIEW IF EXISTS analytics.mv_store_category_mix_monthly;
CREATE MATERIALIZED VIEW analytics.mv_store_category_mix_monthly AS
SELECT m.month_start::date AS month_start, r.*
FROM generate_series(
  (SELECT date_trunc('month', min(closed_at))::date FROM analytics.bill_fact),
  (SELECT date_trunc('month', max(closed_at))::date FROM analytics.bill_fact),
  interval '1 month'
) AS m(month_start)
CROSS JOIN LATERAL analytics.fn_store_category_mix(m.month_start::date) r;

CREATE UNIQUE INDEX idx_mv_cat_mix_month_store ON analytics.mv_store_category_mix_monthly (month_start, store_code);
CREATE INDEX idx_mv_cat_mix_month ON analytics.mv_store_category_mix_monthly (month_start);

-- ============================================================
-- 4. mv_store_member_opportunity_monthly
-- ============================================================
DROP MATERIALIZED VIEW IF EXISTS analytics.mv_store_member_opportunity_monthly;
CREATE MATERIALIZED VIEW analytics.mv_store_member_opportunity_monthly AS
SELECT m.month_start::date AS month_start, r.*
FROM generate_series(
  (SELECT date_trunc('month', min(closed_at))::date FROM analytics.bill_fact),
  (SELECT date_trunc('month', max(closed_at))::date FROM analytics.bill_fact),
  interval '1 month'
) AS m(month_start)
CROSS JOIN LATERAL analytics.fn_store_member_opportunity(m.month_start::date) r;

CREATE UNIQUE INDEX idx_mv_member_opp_month_store ON analytics.mv_store_member_opportunity_monthly (month_start, store_code);
CREATE INDEX idx_mv_member_opp_month ON analytics.mv_store_member_opportunity_monthly (month_start);

-- ============================================================
-- 5. mv_store_benchmark_composite_monthly
-- ============================================================
DROP MATERIALIZED VIEW IF EXISTS analytics.mv_store_benchmark_composite_monthly;
CREATE MATERIALIZED VIEW analytics.mv_store_benchmark_composite_monthly AS
SELECT m.month_start::date AS month_start, r.*
FROM generate_series(
  (SELECT date_trunc('month', min(closed_at))::date FROM analytics.bill_fact),
  (SELECT date_trunc('month', max(closed_at))::date FROM analytics.bill_fact),
  interval '1 month'
) AS m(month_start)
CROSS JOIN LATERAL analytics.fn_store_benchmark_composite(m.month_start::date) r;

CREATE UNIQUE INDEX idx_mv_benchmark_month_store ON analytics.mv_store_benchmark_composite_monthly (month_start, store_code);
CREATE INDEX idx_mv_benchmark_month ON analytics.mv_store_benchmark_composite_monthly (month_start);

-- ============================================================
-- 6. mv_store_deep_diagnosis_monthly
-- ============================================================
DROP MATERIALIZED VIEW IF EXISTS analytics.mv_store_deep_diagnosis_monthly;
CREATE MATERIALIZED VIEW analytics.mv_store_deep_diagnosis_monthly AS
SELECT m.month_start::date AS month_start, r.*
FROM generate_series(
  (SELECT date_trunc('month', min(closed_at))::date FROM analytics.bill_fact),
  (SELECT date_trunc('month', max(closed_at))::date FROM analytics.bill_fact),
  interval '1 month'
) AS m(month_start)
CROSS JOIN LATERAL analytics.fn_store_deep_diagnosis(m.month_start::date) r;

CREATE UNIQUE INDEX idx_mv_deep_diag_month_store ON analytics.mv_store_deep_diagnosis_monthly (month_start, store_code);
CREATE INDEX idx_mv_deep_diag_month ON analytics.mv_store_deep_diagnosis_monthly (month_start);

-- ============================================================
-- 7. mv_dish_basket_monthly
-- ============================================================
DROP MATERIALIZED VIEW IF EXISTS analytics.mv_dish_basket_monthly;
CREATE MATERIALIZED VIEW analytics.mv_dish_basket_monthly AS
SELECT m.month_start::date AS month_start, r.*
FROM generate_series(
  (SELECT date_trunc('month', min(closed_at))::date FROM analytics.bill_fact),
  (SELECT date_trunc('month', max(closed_at))::date FROM analytics.bill_fact),
  interval '1 month'
) AS m(month_start)
CROSS JOIN LATERAL analytics.fn_dish_basket(m.month_start::date) r;

CREATE UNIQUE INDEX idx_mv_dish_basket_month ON analytics.mv_dish_basket_monthly (month_start, store_code, bill_no);
CREATE INDEX idx_mv_dish_basket_month_start ON analytics.mv_dish_basket_monthly (month_start);

-- ============================================================
-- 8. mv_dish_store_summary_monthly
-- ============================================================
DROP MATERIALIZED VIEW IF EXISTS analytics.mv_dish_store_summary_monthly;
CREATE MATERIALIZED VIEW analytics.mv_dish_store_summary_monthly AS
SELECT m.month_start::date AS month_start, r.*
FROM generate_series(
  (SELECT date_trunc('month', min(closed_at))::date FROM analytics.bill_fact),
  (SELECT date_trunc('month', max(closed_at))::date FROM analytics.bill_fact),
  interval '1 month'
) AS m(month_start)
CROSS JOIN LATERAL analytics.fn_dish_store_summary(m.month_start::date) r;

CREATE UNIQUE INDEX idx_mv_dish_store_summary_month ON analytics.mv_dish_store_summary_monthly (month_start, store_code);
CREATE INDEX idx_mv_dish_store_summary_month_start ON analytics.mv_dish_store_summary_monthly (month_start);

-- ============================================================
-- 9. mv_store_theoretical_actual_cost_monthly
-- ============================================================
DROP MATERIALIZED VIEW IF EXISTS analytics.mv_store_theoretical_actual_cost_monthly;
CREATE MATERIALIZED VIEW analytics.mv_store_theoretical_actual_cost_monthly AS
SELECT m.month_start::date AS month_start, r.*
FROM generate_series(
  (SELECT date_trunc('month', min(closed_at))::date FROM analytics.bill_fact),
  (SELECT date_trunc('month', max(closed_at))::date FROM analytics.bill_fact),
  interval '1 month'
) AS m(month_start)
CROSS JOIN LATERAL analytics.fn_store_theoretical_actual_cost(m.month_start::date) r;

CREATE UNIQUE INDEX idx_mv_theor_actual_month_store ON analytics.mv_store_theoretical_actual_cost_monthly (month_start, store_code);
CREATE INDEX idx_mv_theor_actual_month ON analytics.mv_store_theoretical_actual_cost_monthly (month_start);

-- ============================================================
-- 刷新函数 — 数据导入后调用
-- ============================================================
CREATE OR REPLACE FUNCTION analytics.refresh_all_monthly_views()
RETURNS void
LANGUAGE plpgsql
AS $function$
BEGIN
  REFRESH MATERIALIZED VIEW analytics.mv_dish_sku_summary_monthly;
  REFRESH MATERIALIZED VIEW analytics.mv_dish_sku_abc_monthly;
  REFRESH MATERIALIZED VIEW analytics.mv_store_risk_rating_monthly;
  REFRESH MATERIALIZED VIEW analytics.mv_store_platform_economics_monthly;
  REFRESH MATERIALIZED VIEW analytics.mv_store_category_mix_monthly;
  REFRESH MATERIALIZED VIEW analytics.mv_store_member_opportunity_monthly;
  REFRESH MATERIALIZED VIEW analytics.mv_store_benchmark_composite_monthly;
  REFRESH MATERIALIZED VIEW analytics.mv_store_deep_diagnosis_monthly;
  REFRESH MATERIALIZED VIEW analytics.mv_dish_basket_monthly;
  REFRESH MATERIALIZED VIEW analytics.mv_dish_store_summary_monthly;
  REFRESH MATERIALIZED VIEW analytics.mv_store_theoretical_actual_cost_monthly;
END;
$function$;
