UI and machinery for detecting hledger-web version

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

diff --git a/app/src/main/java/net/ktnx/mobileledger/model/HledgerVersion.java b/app/src/main/java/net/ktnx/mobileledger/model/HledgerVersion.java
new file mode 100644 (file)
index 0000000..f3cbba2
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+++ b/app/src/main/java/net/ktnx/mobileledger/model/HledgerVersion.java
@@ -0,0 +1,90 @@
+/*
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your opinion), any later version.
+ *
+ * MoLe is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License terms for details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package net.ktnx.mobileledger.model;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.util.Locale;
+
+public class HledgerVersion {
+    private int major;
+    private int minor;
+    private int patch;
+    private boolean isPre_1_20;
+    private boolean hasPatch;
+    public HledgerVersion(int major, int minor) {
+        this.major = major;
+        this.minor = minor;
+        this.isPre_1_20 = false;
+        this.hasPatch = false;
+    }
+    public HledgerVersion(int major, int minor, int patch) {
+        this.major = major;
+        this.minor = minor;
+        this.patch = patch;
+        this.isPre_1_20 = false;
+        this.hasPatch = true;
+    }
+    public HledgerVersion(boolean pre_1_20) {
+        if (!pre_1_20)
+            throw new IllegalArgumentException("pre_1_20 argument must be true");
+        this.major = this.minor = 0;
+        this.isPre_1_20 = true;
+        this.hasPatch = false;
+    }
+    public HledgerVersion(HledgerVersion origin) {
+        this.major = origin.major;
+        this.minor = origin.minor;
+        this.isPre_1_20 = origin.isPre_1_20;
+        this.patch = origin.patch;
+        this.hasPatch = origin.hasPatch;
+    }
+    @Override
+    public boolean equals(@Nullable Object obj) {
+        if (obj == null)
+            return false;
+        if (!(obj instanceof HledgerVersion))
+            return false;
+        HledgerVersion that = (HledgerVersion) obj;
+
+        return (this.isPre_1_20 == that.isPre_1_20 && this.major == that.major &&
+                this.minor == that.minor && this.patch == that.patch &&
+                this.hasPatch == that.hasPatch);
+    }
+    public boolean isPre_1_20() {
+        return isPre_1_20;
+    }
+    public int getMajor() {
+        return major;
+    }
+    public int getMinor() {
+        return minor;
+    }
+    public int getPatch() {
+        return patch;
+    }
+    @NonNull
+    @Override
+    public String toString() {
+        if (isPre_1_20)
+            return "(before 1.20)";
+        return hasPatch ? String.format(Locale.ROOT, "%d.%d.%d", major, minor, patch)
+                        : String.format(Locale.ROOT, "%d.%d", major, minor);
+    }
+}