Added mod update notification (opt-out via /moo config)

Standardized versioning (now includes Minecraft version)

Bug fixes:
- Reduced greediness of login/logout notification detection

1 files changed, 140 insertions, 0 deletions

diff --git a/src/main/java/eu/olli/cowmoonication/util/VersionChecker.java b/src/main/java/eu/olli/cowmoonication/util/VersionChecker.java
new file mode 100644
index 0000000..5c29ae5
--- /dev/null
+++ b/src/main/java/eu/olli/cowmoonication/util/VersionChecker.java
@@ -0,0 +1,140 @@
+package eu.olli.cowmoonication.util;
+
+import eu.olli.cowmoonication.Cowmoonication;
+import eu.olli.cowmoonication.config.MooConfig;
+import net.minecraft.client.Minecraft;
+import net.minecraft.event.ClickEvent;
+import net.minecraft.event.HoverEvent;
+import net.minecraft.util.ChatComponentText;
+import net.minecraft.util.ChatStyle;
+import net.minecraft.util.EnumChatFormatting;
+import net.minecraft.util.IChatComponent;
+import net.minecraftforge.common.ForgeModContainer;
+import net.minecraftforge.common.ForgeVersion;
+import net.minecraftforge.fml.common.Loader;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * @see ForgeVersion
+ */
+public class VersionChecker {
+    /**
+     * Cooldown between to update checks in minutes
+     */
+    private static final int CHECK_COOLDOWN = 15;
+    private static final String CHANGELOG_URL = "https://github.com/cow-mc/Cowmoonication/blob/master/CHANGELOG.md";
+    private final Cowmoonication main;
+    private long lastCheck;
+    private String newVersion;
+    private String downloadUrl;
+
+    public VersionChecker(Cowmoonication main) {
+        this.main = main;
+        this.lastCheck = Minecraft.getSystemTime();
+        newVersion = "[newVersion]";
+        downloadUrl = "https://github.com/cow-mc/Cowmoonication/releases";
+    }
+
+    public boolean runUpdateCheck(boolean isCommandTriggered) {
+        if (isCommandTriggered || (!ForgeModContainer.disableVersionCheck && MooConfig.doUpdateCheck)) {
+            Runnable handleResults = () -> main.getVersionChecker().handleVersionStatus(isCommandTriggered);
+
+            long now = Minecraft.getSystemTime();
+
+            // only re-run if last check was >CHECK_COOLDOWN minutes ago#
+            if (getNextCheck() < 0) { // next allowed check is "in the past", so we're good to go
+                lastCheck = now;
+                ForgeVersion.startVersionCheck();
+
+                // check status after 5 seconds - hopefully that's enough to check
+                new TickDelay(handleResults, 5 * 20);
+                return true;
+            } else {
+                new TickDelay(handleResults, 1);
+            }
+        }
+        return false;
+    }
+
+    public void handleVersionStatus(boolean isCommandTriggered) {
+        ForgeVersion.CheckResult versionResult = ForgeVersion.getResult(Loader.instance().activeModContainer());
+        if (versionResult.target != null) {
+            newVersion = versionResult.target.toString();
+            downloadUrl = "https://github.com/cow-mc/Cowmoonication/releases/download/v" + newVersion + "/" + Cowmoonication.MODNAME + "-" + newVersion + ".jar";
+        }
+
+        IChatComponent statusMsg = null;
+
+        if (isCommandTriggered) {
+            if (versionResult.status == ForgeVersion.Status.UP_TO_DATE) {
+                // up to date
+                statusMsg = new ChatComponentText("\u2714 You're running the latest version (" + Cowmoonication.VERSION + ").").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.GREEN));
+            } else if (versionResult.status == ForgeVersion.Status.PENDING) {
+                // pending
+                statusMsg = new ChatComponentText("\u279C " + "Version check either failed or is still running.").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.YELLOW))
+                        .appendSibling(new ChatComponentText("\n \u278A Check for results again in a few seconds with " + EnumChatFormatting.GOLD + "/moo version").setChatStyle(new ChatStyle()
+                                .setColor(EnumChatFormatting.YELLOW)
+                                .setChatClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/moo version"))
+                                .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.YELLOW + "Run " + EnumChatFormatting.GOLD + "/moo version")))))
+                        .appendSibling(new ChatComponentText("\n \u278B Re-run update check with " + EnumChatFormatting.GOLD + "/moo update").setChatStyle(new ChatStyle()
+                                .setColor(EnumChatFormatting.YELLOW)
+                                .setChatClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/moo update"))
+                                .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.YELLOW + "Run " + EnumChatFormatting.GOLD + "/moo update")))));
+            } else if (versionResult.status == ForgeVersion.Status.FAILED) {
+                // check failed
+                statusMsg = new ChatComponentText("\u2716 Version check failed for an unknown reason. Check again in a few seconds with ").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.RED))
+                        .appendSibling(new ChatComponentText("/moo update").setChatStyle(new ChatStyle()
+                                .setColor(EnumChatFormatting.GOLD)
+                                .setChatClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/moo update"))
+                                .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.YELLOW + "Run " + EnumChatFormatting.GOLD + "/moo update")))));
+            }
+        }
+        if (versionResult.status == ForgeVersion.Status.OUTDATED || versionResult.status == ForgeVersion.Status.BETA_OUTDATED) {
+            // outdated
+            IChatComponent spacer = new ChatComponentText(" ").setChatStyle(new ChatStyle().setParentStyle(null));
+
+            IChatComponent text = new ChatComponentText("\u279C New version of " + EnumChatFormatting.DARK_GREEN + "Cowmoonication " + EnumChatFormatting.GREEN + "available (" + Cowmoonication.VERSION + " \u27A1 " + newVersion + ")\n").setChatStyle(new ChatStyle().setColor(EnumChatFormatting.GREEN));
+
+            IChatComponent download = new ChatComponentText("[Download]").setChatStyle(new ChatStyle()
+                    .setColor(EnumChatFormatting.DARK_GREEN).setBold(true)
+                    .setChatClickEvent(new ClickEvent(ClickEvent.Action.OPEN_URL, downloadUrl))
+                    .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.YELLOW + "Download the latest version of Cowmoonication"))));
+
+            IChatComponent changelog = new ChatComponentText("[Changelog]").setChatStyle(new ChatStyle()
+                    .setColor(EnumChatFormatting.DARK_AQUA).setBold(true)
+                    .setChatClickEvent(new ClickEvent(ClickEvent.Action.OPEN_URL, CHANGELOG_URL))
+                    .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.YELLOW + "View changelog"))));
+
+            IChatComponent updateInstructions = new ChatComponentText("[Update instructions]").setChatStyle(new ChatStyle()
+                    .setColor(EnumChatFormatting.GOLD).setBold(true)
+                    .setChatClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/moo updateHelp"))
+                    .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.YELLOW + "Run " + EnumChatFormatting.GOLD + "/moo updateHelp"))));
+
+            IChatComponent openModsFolder = new ChatComponentText("\n[Open Mods folder]").setChatStyle(new ChatStyle()
+                    .setColor(EnumChatFormatting.GREEN).setBold(true)
+                    .setChatClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/moo folder"))
+                    .setChatHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ChatComponentText(EnumChatFormatting.YELLOW + "Open mods folder with command " + EnumChatFormatting.GOLD + "/moo folder\n\u279C Click to open mods folder"))));
+
+            statusMsg = text.appendSibling(download).appendSibling(spacer).appendSibling(changelog).appendSibling(spacer).appendSibling(updateInstructions).appendSibling(spacer).appendSibling(openModsFolder);
+        }
+
+        if (statusMsg != null) {
+            main.getUtils().sendMessage(statusMsg);
+        }
+    }
+
+    public long getNextCheck() {
+        long cooldown = TimeUnit.MINUTES.toMillis(CHECK_COOLDOWN);
+        long systemTime = Minecraft.getSystemTime();
+        return cooldown - (systemTime - lastCheck);
+    }
+
+    public String getNewVersion() {
+        return newVersion;
+    }
+
+    public String getDownloadUrl() {
+        return downloadUrl;
+    }
+}