From f1c71f6ef6e2228bda80d8f106c8e82cc83d6e55 Mon Sep 17 00:00:00 2001
From: minie4 <minie4@gmx.de>
Date: Tue, 3 May 2022 17:23:12 +0200
Subject: [PATCH] =?UTF-8?q?=E2=9C=A8=20Find=20and=20handle=20changed=20sub?=
 =?UTF-8?q?stitutions?=
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---
 server/parser/index.js | 56 ++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 54 insertions(+), 2 deletions(-)

diff --git a/server/parser/index.js b/server/parser/index.js
index 392250f..bbcfae0 100644
--- a/server/parser/index.js
+++ b/server/parser/index.js
@@ -143,9 +143,39 @@ export class Parser {
           "Insert / DB",
           `Created new substitution: S:${newSubstitution.id} C:${substitutionChange.id}`
         );
-        // console.log("Oh no...", change);
       } else {
-        console.log("ok");
+        const differences = this.findDifferences(matchingSubstitution, change);
+        if (Object.keys(differences).length > 0) {
+          const prismaOptions = {
+            where: {
+              id: matchingSubstitution.id,
+            },
+            data: {},
+          };
+          if (differences.teacher)
+            prismaOptions.data.changedTeacher = change.changedTeacher;
+          if (differences.room) prismaOptions.data.changedRoom = change.room;
+          if (differences.notes) prismaOptions.data.notes = change.notes;
+
+          await prisma.substitution.update(prismaOptions);
+          const substitutionChange = await prisma.substitutionChange.create({
+            data: {
+              substitutionId: matchingSubstitution.id,
+              type: "change",
+              changes: differences,
+              parseEventId: parseEvent.id,
+            },
+          });
+          log(
+            "Insert / DB",
+            `Found changed substitution: S:${matchingSubstitution.id} C:${substitutionChange.id}`
+          );
+        } else {
+          log(
+            "Insert / DB",
+            `Substitution unchanged: S:${matchingSubstitution.id}`
+          );
+        }
       }
     }
   }
@@ -156,4 +186,26 @@ export class Parser {
     });
     return matchingClasses.map((e) => e.name);
   }
+  findDifferences(currentSubstitution, newChange) {
+    const differences = {};
+    if (newChange.changedTeacher != currentSubstitution.changedTeacher) {
+      differences.teacher = {
+        before: currentSubstitution.changedTeacher,
+        after: newChange.changedTeacher,
+      };
+    }
+    if (newChange.room != currentSubstitution.changedRoom) {
+      differences.room = {
+        before: currentSubstitution.changedRoom,
+        after: newChange.room,
+      };
+    }
+    if (newChange.notes != currentSubstitution.notes) {
+      differences.notes = {
+        before: currentSubstitution.notes,
+        after: newChange.notes,
+      };
+    }
+    return differences;
+  }
 }