From de500854c4ebe8a47dbe329d73e6cc759176a866 Mon Sep 17 00:00:00 2001
From: Lorenz Stechauner <lorenz.stechauner@necronda.net>
Date: Tue, 17 Oct 2023 23:48:16 +0200
Subject: [PATCH] AppDbContext: Add v_area_commitment_bin

---
 Elwig/Helpers/AppDbContext.cs | 12 +-----------
 Elwig/Helpers/AppDbUpdater.cs | 33 +++++++++++++++++++++++++++++++--
 2 files changed, 32 insertions(+), 13 deletions(-)

diff --git a/Elwig/Helpers/AppDbContext.cs b/Elwig/Helpers/AppDbContext.cs
index 28d73a2..7db9138 100644
--- a/Elwig/Helpers/AppDbContext.cs
+++ b/Elwig/Helpers/AppDbContext.cs
@@ -215,17 +215,7 @@ namespace Elwig.Helpers {
             cnx ??= await ConnectAsync();
             var bins = new Dictionary<int, Dictionary<string, (int, int)>>();
             using (var cmd = cnx.CreateCommand()) {
-                cmd.CommandText = $"""
-                    SELECT mgnr, t.vtrgid,
-                           ROUND(SUM(COALESCE(area * min_kg_per_ha, 0)) / 10000.0) AS min_kg,
-                           ROUND(SUM(COALESCE(area * max_kg_per_ha, 0)) / 10000.0) AS max_kg
-                    FROM area_commitment c
-                    JOIN area_commitment_type t ON t.vtrgid = c.vtrgid
-                    WHERE (year_from IS NULL OR year_from <= {year}) AND
-                          (year_to IS NULL OR year_to >= {year})
-                    GROUP BY mgnr, t.vtrgid
-                    ORDER BY LENGTH(t.vtrgid) DESC, t.vtrgid
-                    """;
+                cmd.CommandText = $"SELECT mgnr, bin, min_kg, max_kg FROM v_area_commitment_bin WHERE year = {year}";
                 using var reader = await cmd.ExecuteReaderAsync();
                 while (await reader.ReadAsync()) {
                     var mgnr = reader.GetInt32(0);
diff --git a/Elwig/Helpers/AppDbUpdater.cs b/Elwig/Helpers/AppDbUpdater.cs
index f493fe8..c3a9a99 100644
--- a/Elwig/Helpers/AppDbUpdater.cs
+++ b/Elwig/Helpers/AppDbUpdater.cs
@@ -4,11 +4,11 @@ using System;
 namespace Elwig.Helpers {
     public static class AppDbUpdater {
 
-        public static readonly int RequiredSchemaVersion = 3;
+        public static readonly int RequiredSchemaVersion = 4;
 
         private static int _versionOffset = 0;
         private static readonly Action<SqliteConnection>[] _updaters = new[] {
-            UpdateDbSchema_1_To_2, UpdateDbSchema_2_To_3
+            UpdateDbSchema_1_To_2, UpdateDbSchema_2_To_3, UpdateDbSchema_3_To_4
         };
 
         private static void ExecuteNonQuery(SqliteConnection cnx, string sql) {
@@ -184,5 +184,34 @@ namespace Elwig.Helpers {
 
             ExecuteNonQuery(cnx, "ALTER TABLE wine_attribute ADD COLUMN fill_lower_bins INTEGER NOT NULL CHECK (fill_lower_bins IN (0, 1, 2)) DEFAULT 0");
         }
+
+        private static void UpdateDbSchema_3_To_4(SqliteConnection cnx) {
+            ExecuteNonQuery(cnx, "DROP VIEW v_payment_bin");
+            ExecuteNonQuery(cnx, """
+                CREATE VIEW v_payment_bin AS
+                SELECT d.year, d.mgnr,
+                       sortid || discr AS bin,
+                       SUM(value) AS weight
+                FROM v_delivery d
+                    JOIN delivery_part_bin b ON (b.year, b.did, b.dpnr) = (d.year, d.did, d.dpnr)
+                GROUP BY d.year, d.mgnr, bin
+                HAVING SUM(value) > 0
+                ORDER BY d.year, d.mgnr, LENGTH(bin) DESC, bin;
+                """);
+
+            ExecuteNonQuery(cnx, """
+                CREATE VIEW v_area_commitment_bin AS
+                SELECT s.year, c.mgnr,
+                       c.vtrgid AS bin,
+                       CAST(ROUND(SUM(COALESCE(area * min_kg_per_ha, 0)) / 10000.0, 0) AS INTEGER) AS min_kg,
+                       CAST(ROUND(SUM(COALESCE(area * max_kg_per_ha, 0)) / 10000.0, 0) AS INTEGER) AS max_kg
+                FROM area_commitment c, season s
+                    JOIN area_commitment_type t ON t.vtrgid = c.vtrgid
+                WHERE (year_from IS NULL OR year_from <= s.year) AND
+                      (year_to IS NULL OR year_to >= s.year)
+                GROUP BY s.year, c.mgnr, c.vtrgid
+                ORDER BY s.year, c.mgnr, LENGTH(c.vtrgid) DESC, c.vtrgid;
+                """);
+        }
     }
 }