Settings: add opt out stats event

- Get rid of keeping track of queued jobs, job scheduler does this and
  all we really want is a new job id to not interfere with old ones
  (unless we hit the max jobs allowed, then start the count over).

- Persist whether we have reported metrics for the owner user (once per
  device)

Ref: CYNGNOS-1131
Change-Id: Ib5bac2944b5ca4259ea82a357b24708377c1dc4c

1 files changed, 38 insertions, 42 deletions

diff --git a/src/com/android/settings/cmstats/AnonymousStats.java b/src/com/android/settings/cmstats/AnonymousStats.java
index 732a579..d85e24d 100644
--- a/src/com/android/settings/cmstats/AnonymousStats.java
+++ b/src/com/android/settings/cmstats/AnonymousStats.java
@@ -20,20 +20,27 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.os.Bundle;
 
-import android.util.ArraySet;
+import android.os.UserHandle;
+import android.preference.Preference;
+import android.preference.PreferenceScreen;
+import android.preference.SwitchPreference;
 import com.android.settings.R;
 import com.android.settings.SettingsPreferenceFragment;
-
-import java.util.Set;
+import cyanogenmod.providers.CMSettings;
 
 public class AnonymousStats extends SettingsPreferenceFragment {
+
     private static final String PREF_FILE_NAME = "CMStats";
     /* package */ static final String ANONYMOUS_OPT_IN = "pref_anonymous_opt_in";
     /* package */ static final String ANONYMOUS_LAST_CHECKED = "pref_anonymous_checked_in";
 
-    /* package */ static final String KEY_JOB_QUEUE = "pref_job_queue";
+    /* package */ static final String KEY_LAST_JOB_ID = "last_job_id";
     /* package */ static final int QUEUE_MAX_THRESHOLD = 1000;
 
+    public static final String KEY_STATS = "stats_collection";
+
+    SwitchPreference mStatsSwitch;
+
     public static SharedPreferences getPreferences(Context context) {
         return context.getSharedPreferences(PREF_FILE_NAME, 0);
     }
@@ -42,62 +49,51 @@ public class AnonymousStats extends SettingsPreferenceFragment {
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         addPreferencesFromResource(R.xml.anonymous_stats);
+        mStatsSwitch = (SwitchPreference) findPreference(KEY_STATS);
     }
 
-    public static Set<String> getJobQueue(Context context) {
-        return getPreferences(context).getStringSet(KEY_JOB_QUEUE, new ArraySet<String>());
+    @Override
+    public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
+        if (preference == mStatsSwitch) {
+            boolean checked = mStatsSwitch.isChecked();
+            if (checked) {
+                // clear opt out flags
+                CMSettings.Secure.putIntForUser(getContentResolver(),
+                        CMSettings.Secure.STATS_COLLECTION_REPORTED, 0, UserHandle.USER_OWNER);
+            }
+            // will initiate opt out sequence if necessary
+            ReportingServiceManager.setAlarm(getActivity());
+            return true;
+        }
+        return super.onPreferenceTreeClick(preferenceScreen, preference);
     }
 
-    public static void clearJobQueue(Context context) {
+    public static void updateLastSynced(Context context) {
         getPreferences(context)
                 .edit()
-                .remove(KEY_JOB_QUEUE)
+                .putLong(ANONYMOUS_LAST_CHECKED,System.currentTimeMillis())
                 .commit();
     }
 
-    public static void addJob(Context context, int jobId) {
-        Set<String> jobQueue = getJobQueue(context);
-        jobQueue.add(String.valueOf(jobId));
-
-        getPreferences(context)
-                .edit()
-                .putStringSet(KEY_JOB_QUEUE, jobQueue)
-                .commit();
+    private static int getLastJobId(Context context) {
+        return getPreferences(context).getInt(KEY_LAST_JOB_ID, 0);
     }
 
-    public static void removeJob(Context context, int jobId) {
-        Set<String> jobQueue = getJobQueue(context);
-        jobQueue.remove(String.valueOf(jobId));
+    private static void setLastJobId(Context context, int id) {
         getPreferences(context)
                 .edit()
-                .remove(KEY_JOB_QUEUE)
-                .commit();
-
-        getPreferences(context)
-                .edit()
-                .putStringSet(KEY_JOB_QUEUE, jobQueue)
+                .putInt(KEY_LAST_JOB_ID, id)
                 .commit();
     }
 
-    /**
-     * @param context context to use to get prefs
-     * @return Returns the next unused int in the job queue, up until {@link #QUEUE_MAX_THRESHOLD}
-     * is reached, then it will return -1
-     */
     public static int getNextJobId(Context context) {
-        Set<String> currentQueue = getJobQueue(context);
-
-        if (currentQueue == null) {
-            return 1;
-        } else if (currentQueue.size() >= QUEUE_MAX_THRESHOLD) {
-            return -1;
+        int lastId = getLastJobId(context);
+        if (lastId >= QUEUE_MAX_THRESHOLD) {
+            lastId = 1;
         } else {
-            int i = 1;
-            while (currentQueue.contains(String.valueOf(i))) {
-                i++;
-            }
-            return i;
-
+            lastId += 1;
         }
+        setLastJobId(context, lastId);
+        return lastId;
     }
 }