Room-based profile management

[mobile-ledger.git] / app / src / main / java / net / ktnx / mobileledger / model / Currency.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/model/Currency.java b/app/src/main/java/net/ktnx/mobileledger/model/Currency.java
index 596cdf1c493c50c5b308a5b3f63c717ece831b5b..bfe84ea031355d93baf1fc03b375b3ec372a8cb0 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/model/Currency.java
+++ b/app/src/main/java/net/ktnx/mobileledger/model/Currency.java
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2019 Damyan Ivanov.
+ * Copyright © 2020 Damyan Ivanov.
  * This file is part of MoLe.
  * MoLe is free software: you can distribute it and/or modify it
  * under the term of the GNU General Public License as published by
@@ -17,32 +17,10 @@
 
 package net.ktnx.mobileledger.model;
 
-import android.database.Cursor;
-import android.database.sqlite.SQLiteDatabase;
-
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.DiffUtil;
-
-import net.ktnx.mobileledger.App;
 import net.ktnx.mobileledger.utils.Misc;
 
 public class Currency {
-    public static final DiffUtil.ItemCallback<Currency> DIFF_CALLBACK =
-            new DiffUtil.ItemCallback<Currency>() {
-                @Override
-                public boolean areItemsTheSame(@NonNull Currency oldItem,
-                                               @NonNull Currency newItem) {
-                    return oldItem.id == newItem.id;
-                }
-                @Override
-                public boolean areContentsTheSame(@NonNull Currency oldItem,
-                                                  @NonNull Currency newItem) {
-                    return oldItem.name.equals(newItem.name) &&
-                           oldItem.position.equals(newItem.position) &&
-                           (oldItem.hasGap == newItem.hasGap);
-                }
-            };
-    private int id;
+    private final int id;
     private String name;
     private Position position;
     private boolean hasGap;
@@ -58,31 +36,26 @@ public class Currency {
         this.position = position;
         this.hasGap = hasGap;
     }
-    public Currency(MobileLedgerProfile profile, String name, Position position, boolean hasGap) {
-        SQLiteDatabase db = App.getDatabase();
-        int attempts = 0;
-        while (true) {
-            if (++attempts > 10)
-                throw new RuntimeException("Giving up getting next ID after 10 attempts");
-
-            try (Cursor c = db.rawQuery("select max(rowid) from currencies", null)) {
-                c.moveToNext();
-                int nextId = c.getInt(0) + 1;
-                db.execSQL("insert into currencies(id, name, position, has_gap) values(?, ?, ?, ?)",
-                        new Object[]{nextId, name, position.toString(), hasGap});
-
-                this.id = nextId;
-                break;
-            }
+    static public boolean equal(Currency left, Currency right) {
+        if (left == null) {
+            return right == null;
         }
-
-        this.name = name;
-        this.position = position;
-        this.hasGap = hasGap;
+        else
+            return left.equals(right);
     }
-    public static Currency loadByName(String name) {
-        MobileLedgerProfile profile = Data.getProfile();
-        return profile.loadCurrencyByName(name);
+    static public boolean equal(Currency left, String right) {
+        right = Misc.emptyIsNull(right);
+        if (left == null) {
+            return right == null;
+        }
+        else {
+            String leftName = Misc.emptyIsNull(left.getName());
+            if (leftName == null) {
+                return right == null;
+            }
+            else
+                return leftName.equals(right);
+        }
     }
     public int getId() {
         return id;
@@ -105,46 +78,7 @@ public class Currency {
     public void setHasGap(boolean hasGap) {
         this.hasGap = hasGap;
     }
-    static public boolean equal(Currency left, Currency right) {
-        if (left == null) {
-            return right == null;
-        }
-        else
-            return left.equals(right);
-    }
-    static public boolean equal(Currency left, String right) {
-        right = Misc.emptyIsNull(right);
-        if (left == null) {
-            return right == null;
-        }
-        else {
-            String leftName = Misc.emptyIsNull(left.getName());
-            if (leftName == null) {
-                return right == null;
-            }
-            else
-                return leftName.equals(right);
-        }
-    }
     public enum Position {
-        before(-1), after(1), unknown(0), none(-2);
-        private int value;
-        Position(int value) {
-            this.value = value;
-        }
-        static Position valueOf(int value) {
-            switch (value) {
-                case -1:
-                    return before;
-                case +1:
-                    return after;
-                case 0:
-                    return unknown;
-                case -2:
-                    return none;
-                default:
-                    throw new IllegalStateException(String.format("Unexpected value (%d)", value));
-            }
-        }
+        before, after, unknown, none
     }
 }