update guidance logic to be the shown price which is great of target or last price but capped at list

procs/approval_logic.ms.sql

@@ -1,6 +1,6 @@
--- CREATE OR ALTER FUNCTION pricing.guidance_logic;
+-- CREATE OR ALTER FUNCTION pricing.approval_logic;
 
-CREATE OR ALTER FUNCTION pricing.guidance_logic(
+CREATE OR ALTER FUNCTION pricing.approval_logic(
     @target       numeric(20,5),
     @last_norm    numeric(20,5),
     @list_eff     numeric(20,5),
@@ -10,8 +10,8 @@ CREATE OR ALTER FUNCTION pricing.guidance_logic(
     @cap_list_pct numeric(10,5) = 1.00
 )
 RETURNS @ret TABLE (
-    guidance_price  numeric(20,5),
+    approval_price  numeric(20,5),
-    guidance_reason nvarchar(4000)
+    approval_reason nvarchar(4000)
 )
 AS
 BEGIN

procs/guidance_logic.ms.sql

@@ -31,34 +31,6 @@ BEGIN
 
     -- Pick starting base price
     SET @base_price = COALESCE(@target, @last_norm, @list_eff);
-
-    -- Step 1: use base price unless it's more than x% below last price
-    SET @after_floor = @base_price;
-    IF @last_norm IS NOT NULL
-        SET @after_floor = ROUND(
-            CASE WHEN @base_price >= @last_norm*@floor_pct
-                 THEN @base_price
-                 ELSE @last_norm*@floor_pct
-            END, 5);
-
-    -- Step 2: use price from previous step but don't allow it to be x% above last price
-    SET @after_cap_last = @after_floor;
-    IF @last_norm IS NOT NULL
-        SET @after_cap_last = ROUND(
-            CASE WHEN @after_floor <= @last_norm*@cap_last_pct
-                 THEN @after_floor
-                 ELSE @last_norm*@cap_last_pct
-            END, 5);
-
-    -- Step 3: use price from last step, but don't allow it to be more than x% above list price
-    SET @final_price = @after_cap_last;
-    IF @list_eff IS NOT NULL
-        SET @final_price = ROUND(
-            CASE WHEN @after_cap_last <= @list_eff*@cap_list_pct
-                 THEN @after_cap_last
-                 ELSE @list_eff*@cap_list_pct
-            END, 5);
-
     -- Reason text
     SET @reason = 
       CASE 
@@ -67,14 +39,22 @@ BEGIN
         WHEN @list_eff IS NOT NULL THEN N'Using list price as base'
       END;
 
-    IF @last_norm IS NOT NULL AND @after_floor > @base_price
+    -- Step 1: use base price less than last price, use last price
-        SET @reason = N'Last price drop limit';
+    IF @base_price < @last_norm
+    BEGIN
+    	SET @base_price = @last_norm;
+    	SET @reason = N'Last price';
+    END
     	
-    IF @last_norm IS NOT NULL AND @after_cap_last < @after_floor
-        SET @reason = N'Last price increase limit';
 
-    IF @list_eff IS NOT NULL AND @final_price < @after_cap_last
+    -- Step 2: use price from previous step but don't allow it to be x% above last price
+    IF @base_price > @list_eff
+    BEGIN
+    	SET @base_price = @list_eff;
     	SET @reason = N'List price ceiling';
+    END
+    
+    SET @final_price = @base_price;
                        
     INSERT INTO @ret VALUES (@final_price, @reason);
     RETURN;

procs/single_price_call.ms.sql

@@ -136,8 +136,8 @@ BEGIN
         ------------step 6 compute guidance------------
 		guidance_price	NUMERIC(20,5),
 		guidance_reason NVARCHAR(MAX),
-		shown_price     NUMERIC(20,5),
+		approval_price	NUMERIC(20,5),
-		shown_logic     NVARCHAR(MAX),
+		approval_reason NVARCHAR(MAX),
         ------------step 7 build json------------------
 		expl        NVARCHAR(MAX),
 		ui_json 	NVARCHAR(MAX)
@@ -379,6 +379,8 @@ BEGIN
 	SET 
 		guidance_price   = g.guidance_price
 		,guidance_reason  = g.guidance_reason
+		,approval_price   = a.approval_price
+		,approval_reason  = a.approval_reason
 	FROM @queue q
     CROSS APPLY pricing.guidance_logic(
         TRY_CAST(q.tprice          AS NUMERIC(20,5)),
@@ -391,7 +393,19 @@ BEGIN
         1.0,
         --cap on list percent
         1.0
-    ) g;
+    ) g
+    CROSS APPLY pricing.approval_logic(
+        TRY_CAST(q.tprice          AS NUMERIC(20,5)),
+        TRY_CAST(q.last_price_norm AS NUMERIC(20,5)),
+        TRY_CAST(q.listprice_eff   AS NUMERIC(20,5)),
+        TRY_CAST(q.last_date       AS DATE),
+        --allowable price drop percent
+        .95,
+        --cap on last price
+        1.0,
+        --cap on list percent
+        1.0
+    ) a;
 
 	--------------------------------------------------------------------------------
 	-- Step 8: Assemble structured 'expl' JSON from populated columns.
@@ -438,6 +452,8 @@ BEGIN
                 ,q.list_relevance                                            AS list_relevance
 		        ,q.guidance_price                                            AS guidance_price
 		        ,q.guidance_reason                                           AS guidance_reason
+		        ,q.approval_price                                            AS approval_price
+		        ,q.approval_reason                                           AS approval_reason
 				-- JSON_QUERY(hist) 															AS [history]
 			FOR JSON PATH, WITHOUT_ARRAY_WRAPPER
 		)