60 lines
2.2 KiB
SQL
60 lines
2.2 KiB
SQL
CREATE OR ALTER FUNCTION pricing.guidance_logic(
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@target numeric(20,5),
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@last_norm numeric(20,5),
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@list_eff numeric(20,5),
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@last_date date,
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@floor_pct numeric(10,5) = 0.05, -- e.g., 5%
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@cap_last_pct numeric(10,5) = 1.00, -- e.g., 100%
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@cap_list_pct numeric(10,5) = 1.00
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)
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RETURNS TABLE
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AS
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RETURN
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WITH base AS (
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SELECT
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CAST(CASE WHEN @target IS NULL THEN NULL ELSE @target END AS numeric(20,5)) AS price
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), floored AS (
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SELECT
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CASE WHEN price IS NULL OR @last_norm IS NULL OR @floor_pct<=0
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THEN price
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ELSE CAST(ROUND(IIF(price>@last_norm*(1-@floor_pct),price,@last_norm*(1-@floor_pct)),5) AS numeric(20,5))
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END AS price
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FROM base
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), cap_last AS (
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SELECT
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CASE WHEN price IS NULL OR @last_norm IS NULL
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THEN price
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ELSE CAST(ROUND(IIF(price<@last_norm*@cap_last_pct,price,@last_norm*@cap_last_pct),5) AS numeric(20,5))
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END AS price
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FROM floored
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), cap_list AS (
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SELECT
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CASE WHEN price IS NULL OR @list_eff IS NULL
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THEN price
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ELSE CAST(ROUND(IIF(price<@list_eff*@cap_list_pct,price,@list_eff*@cap_list_pct),5) AS numeric(20,5))
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END AS price
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FROM cap_last
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)
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SELECT
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price AS guidance_price,
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CASE
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WHEN @target IS NULL THEN 'No target price available'
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WHEN @last_norm IS NULL AND @list_eff IS NULL THEN 'No recent sale or list; using target price'
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ELSE
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CONCAT(
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'Using target price',
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CASE WHEN @last_norm IS NOT NULL AND @floor_pct>0
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THEN CONCAT(', floored to ', FORMAT(@floor_pct*100,'0.##'), '% below last price') ELSE '' END,
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CASE WHEN @last_norm IS NOT NULL AND @cap_last_pct<1
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THEN CONCAT(', capped to ', FORMAT(@cap_last_pct*100,'0.##'), '% of last price')
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WHEN @last_norm IS NOT NULL AND @cap_last_pct=1
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THEN ', capped to not exceed last price'
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ELSE '' END,
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CASE WHEN @list_eff IS NOT NULL AND @cap_list_pct<1
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THEN CONCAT(', capped to ', FORMAT(@cap_list_pct*100,'0.##'), '% of list price')
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WHEN @list_eff IS NOT NULL AND @cap_list_pct=1
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THEN ', capped to not exceed list price'
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ELSE '' END
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)
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END AS guidance_reason;
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