# WeChat Native UI Phase 2 Implementation Plan

> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.

**Goal:** Polish the native Android WeChat-style rollback with better chat feel, clearer OTA download/install feedback, and smoother root navigation memory.

**Architecture:** Keep the approved WeChat-style root surfaces intact and limit this batch to interaction polish. Add small pure-Java helpers for chat UI state and OTA download state so the tricky behavior is unit-tested, then wire those helpers into `ProjectDetailActivity`, `AboutActivity`, and `MainActivity`.

**Tech Stack:** Android AppCompat, XML layouts, Java 21, Gradle 8, JUnit4, DownloadManager, existing Boss APIs, existing release packaging and deploy scripts.

---

## File Structure

### New files

- `android/app/src/main/java/com/hyzq/boss/ProjectChatUiState.java`
  - Pure-Java helper for send-button enabled state, optimistic pending bubble state, and auto-scroll policy.
- `android/app/src/main/java/com/hyzq/boss/OtaDownloadStateMapper.java`
  - Pure-Java helper for mapping `DownloadManager` progress/status into UI strings and retry/install states.
- `android/app/src/main/java/com/hyzq/boss/RootTabMemory.java`
  - Pure-Java helper for resolving explicit root tabs versus stored root tabs.
- `android/app/src/test/java/com/hyzq/boss/ProjectChatUiStateTest.java`
  - Unit tests for chat send/pending/scroll rules.
- `android/app/src/test/java/com/hyzq/boss/OtaDownloadStateMapperTest.java`
  - Unit tests for OTA download state mapping.
- `android/app/src/test/java/com/hyzq/boss/RootTabMemoryTest.java`
  - Unit tests for remembered root tab selection.

### Modified files

- `android/app/src/main/java/com/hyzq/boss/ProjectDetailActivity.java`
- `android/app/src/main/java/com/hyzq/boss/AboutActivity.java`
- `android/app/src/main/java/com/hyzq/boss/MainActivity.java`
- `android/app/src/main/java/com/hyzq/boss/BossUi.java`
- `README.md`
- `docs/architecture/current_runtime_and_deploy_status_cn.md`
- `docs/architecture/api_and_service_inventory_cn.md`

## Task 1: Polish Chat Composer Feedback and Scroll Behavior

**Files:**
- Create: `android/app/src/main/java/com/hyzq/boss/ProjectChatUiState.java`
- Create: `android/app/src/test/java/com/hyzq/boss/ProjectChatUiStateTest.java`
- Modify: `android/app/src/main/java/com/hyzq/boss/ProjectDetailActivity.java`
- Modify: `android/app/src/main/java/com/hyzq/boss/BossUi.java`

- [ ] **Step 1: Write the failing test**

```java
package com.hyzq.boss;

import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;

import org.junit.Test;

public class ProjectChatUiStateTest {
    @Test
    public void sendEnabled_requiresTextAndNotBusy() {
        assertFalse(ProjectChatUiState.canSend("", false));
        assertFalse(ProjectChatUiState.canSend("   ", false));
        assertFalse(ProjectChatUiState.canSend("你好", true));
        assertTrue(ProjectChatUiState.canSend("你好", false));
    }

    @Test
    public void shouldAutoScroll_onlyWhenNearBottomOrForced() {
        assertTrue(ProjectChatUiState.shouldAutoScroll(true, false));
        assertTrue(ProjectChatUiState.shouldAutoScroll(false, true));
        assertFalse(ProjectChatUiState.shouldAutoScroll(false, false));
    }
}
```

- [ ] **Step 2: Run test to verify it fails**

Run:

```bash
cd /Users/kris/code/boss
JAVA_HOME=$(/usr/libexec/java_home) ./android/gradlew -p ./android testDebugUnitTest --tests com.hyzq.boss.ProjectChatUiStateTest --no-daemon
```

Expected: FAIL with missing `ProjectChatUiState`.

- [ ] **Step 3: Write minimal implementation**

```java
package com.hyzq.boss;

public final class ProjectChatUiState {
    private ProjectChatUiState() {}

    public static boolean canSend(String text, boolean sending) {
        return !sending && text != null && !text.trim().isEmpty();
    }

    public static boolean shouldAutoScroll(boolean nearBottom, boolean forced) {
        return nearBottom || forced;
    }
}
```

Then integrate it into `ProjectDetailActivity`:

- disable send button when text empty or request busy
- show a local pending outgoing bubble immediately after tapping send
- only auto-scroll on refresh when user was already near bottom or after local send

- [ ] **Step 4: Run tests and compile verification**

Run:

```bash
cd /Users/kris/code/boss
JAVA_HOME=$(/usr/libexec/java_home) ./android/gradlew -p ./android testDebugUnitTest --tests com.hyzq.boss.ProjectChatUiStateTest --no-daemon
JAVA_HOME=$(/usr/libexec/java_home) ./android/gradlew -p ./android :app:compileDebugJavaWithJavac --no-daemon
```

Expected: PASS.

- [ ] **Step 5: Commit**

```bash
cd /Users/kris/code/boss
git add android/app/src/main/java/com/hyzq/boss/ProjectChatUiState.java \
  android/app/src/test/java/com/hyzq/boss/ProjectChatUiStateTest.java \
  android/app/src/main/java/com/hyzq/boss/ProjectDetailActivity.java \
  android/app/src/main/java/com/hyzq/boss/BossUi.java
git commit -m "feat: polish native chat composer feedback"
```

## Task 2: Add OTA Download Progress and Retry Guidance

**Files:**
- Create: `android/app/src/main/java/com/hyzq/boss/OtaDownloadStateMapper.java`
- Create: `android/app/src/test/java/com/hyzq/boss/OtaDownloadStateMapperTest.java`
- Modify: `android/app/src/main/java/com/hyzq/boss/AboutActivity.java`
- Modify: `android/app/src/main/java/com/hyzq/boss/BossUi.java`

- [ ] **Step 1: Write the failing test**

```java
package com.hyzq.boss;

import static org.junit.Assert.assertEquals;

import org.junit.Test;

public class OtaDownloadStateMapperTest {
    @Test
    public void toProgressLabel_formatsKnownProgress() {
        assertEquals("已下载 50%", OtaDownloadStateMapper.toProgressLabel(50, true));
    }

    @Test
    public void toProgressLabel_handlesUnknownProgress() {
        assertEquals("正在准备下载", OtaDownloadStateMapper.toProgressLabel(0, false));
    }
}
```

- [ ] **Step 2: Run test to verify it fails**

Run:

```bash
cd /Users/kris/code/boss
JAVA_HOME=$(/usr/libexec/java_home) ./android/gradlew -p ./android testDebugUnitTest --tests com.hyzq.boss.OtaDownloadStateMapperTest --no-daemon
```

Expected: FAIL with missing `OtaDownloadStateMapper`.

- [ ] **Step 3: Write minimal implementation**

```java
package com.hyzq.boss;

public final class OtaDownloadStateMapper {
    private OtaDownloadStateMapper() {}

    public static String toProgressLabel(int percent, boolean hasKnownTotal) {
        if (!hasKnownTotal) {
            return "正在准备下载";
        }
        return "已下载 " + Math.max(0, Math.min(100, percent)) + "%";
    }
}
```

Then integrate it into `AboutActivity`:

- query `DownloadManager` while download is active
- render a visible progress row in page content
- keep a retry action after failed download
- show install permission guidance row when unknown-source install permission is missing

- [ ] **Step 4: Run tests and compile verification**

Run:

```bash
cd /Users/kris/code/boss
JAVA_HOME=$(/usr/libexec/java_home) ./android/gradlew -p ./android testDebugUnitTest --tests com.hyzq.boss.OtaDownloadStateMapperTest --no-daemon
JAVA_HOME=$(/usr/libexec/java_home) ./android/gradlew -p ./android :app:compileDebugJavaWithJavac --no-daemon
```

Expected: PASS.

- [ ] **Step 5: Commit**

```bash
cd /Users/kris/code/boss
git add android/app/src/main/java/com/hyzq/boss/OtaDownloadStateMapper.java \
  android/app/src/test/java/com/hyzq/boss/OtaDownloadStateMapperTest.java \
  android/app/src/main/java/com/hyzq/boss/AboutActivity.java \
  android/app/src/main/java/com/hyzq/boss/BossUi.java
git commit -m "feat: add native ota progress feedback"
```

## Task 3: Remember Root Tab and Smooth Root Back Behavior

**Files:**
- Create: `android/app/src/main/java/com/hyzq/boss/RootTabMemory.java`
- Create: `android/app/src/test/java/com/hyzq/boss/RootTabMemoryTest.java`
- Modify: `android/app/src/main/java/com/hyzq/boss/MainActivity.java`

- [ ] **Step 1: Write the failing test**

```java
package com.hyzq.boss;

import static org.junit.Assert.assertEquals;

import org.junit.Test;

public class RootTabMemoryTest {
    @Test
    public void resolveInitialTab_prefersExplicitTab() {
        assertEquals("devices", RootTabMemory.resolveInitialTab("devices", "me"));
    }

    @Test
    public void resolveInitialTab_fallsBackToStoredTab() {
        assertEquals("me", RootTabMemory.resolveInitialTab(null, "me"));
    }

    @Test
    public void resolveInitialTab_defaultsToConversations() {
        assertEquals("conversations", RootTabMemory.resolveInitialTab(null, null));
    }
}
```

- [ ] **Step 2: Run test to verify it fails**

Run the new unit test target after creating it in the same package:

```bash
cd /Users/kris/code/boss
JAVA_HOME=$(/usr/libexec/java_home) ./android/gradlew -p ./android testDebugUnitTest --tests com.hyzq.boss.RootTabMemoryTest --no-daemon
```

Expected: FAIL with missing helper.

- [ ] **Step 3: Write minimal implementation**

Implement the helper:

```java
package com.hyzq.boss;

public final class RootTabMemory {
    private RootTabMemory() {}

    public static String resolveInitialTab(String explicitTab, String storedTab) {
        if ("conversations".equals(explicitTab) || "devices".equals(explicitTab) || "me".equals(explicitTab)) {
            return explicitTab;
        }
        if ("conversations".equals(storedTab) || "devices".equals(storedTab) || "me".equals(storedTab)) {
            return storedTab;
        }
        return "conversations";
    }
}
```

Then wire it into `MainActivity` so that:

- last selected root tab is persisted in `SharedPreferences`
- explicit deep-link tab still wins over stored tab
- when already at root conversations tab, back key shows a soft toast then moves task to back

- [ ] **Step 4: Run tests and full debug verification**

Run:

```bash
cd /Users/kris/code/boss
JAVA_HOME=$(/usr/libexec/java_home) ./android/gradlew -p ./android testDebugUnitTest --no-daemon
JAVA_HOME=$(/usr/libexec/java_home) ./android/gradlew -p ./android assembleDebug --no-daemon
```

Expected: PASS.

- [ ] **Step 5: Commit**

```bash
cd /Users/kris/code/boss
git add android/app/src/main/java/com/hyzq/boss/MainActivity.java \
  android/app/src/main/java/com/hyzq/boss/RootTabMemory.java \
  android/app/src/test/java/com/hyzq/boss/RootTabMemoryTest.java
git commit -m "feat: polish native root tab memory"
```

## Task 4: Verification, Packaging, Deploy, and Docs

**Files:**
- Modify: `README.md`
- Modify: `docs/architecture/current_runtime_and_deploy_status_cn.md`
- Modify: `docs/architecture/api_and_service_inventory_cn.md`
- Modify: `android/app/build.gradle`

- [ ] **Step 1: Update docs and version**

- bump Android version for the next polish release
- document chat send feedback, OTA progress, and root tab memory behavior

- [ ] **Step 2: Run local verification**

Run:

```bash
cd /Users/kris/code/boss
npm run lint
npm run build
curl -sS http://127.0.0.1:3000/api/health
curl -sS http://127.0.0.1:4317/health
JAVA_HOME=$(/usr/libexec/java_home) npm run apk:release
JAVA_HOME=$(/usr/libexec/java_home) npm run aab:release
```

- [ ] **Step 3: Deploy and verify**

Run:

```bash
cd /Users/kris/code/boss
BOSS_SERVER_PASS='your-password' ./scripts/deploy-server.sh
"$HOME/.codex/skills/boss-server-debug/scripts/server_ssh.sh" exec "curl -sS http://127.0.0.1:3000/api/health"
curl -sS https://boss.hyzq.net/api/health
curl -sS https://boss.hyzq.net/downloads/boss-android-latest.json
```

- [ ] **Step 4: Commit**

```bash
cd /Users/kris/code/boss
git add README.md docs/architecture/current_runtime_and_deploy_status_cn.md \
  docs/architecture/api_and_service_inventory_cn.md android/app/build.gradle \
  public/downloads/
git commit -m "chore: publish native ui phase 2 polish release"
```