Add "publicly-accessible" receiver

app/src/main/AndroidManifest.xml

@@ -221,6 +221,10 @@
 
         <receiver android:name=".android.NewNoteBroadcastReceiver"/>
 
+        <receiver android:name=".android.external.ExternalAccessReceiver"
+            android:exported="true">
+        </receiver>
+
         <receiver android:name=".android.TimeChangeBroadcastReceiver" android:exported="false">
             <intent-filter>
                 <action android:name="android.intent.action.TIME_SET"/>

app/src/main/java/com/orgzly/android/data/DataRepository.kt

@@ -613,7 +613,7 @@ class DataRepository @Inject constructor(
 
         } else {
             db.runInTransaction(Callable {
-                moveSubtrees(noteIds, Place.UNDER, target.noteId)
+                moveSubtrees(noteIds, target.place, target.noteId)
             })
         }
     }
@@ -1280,6 +1280,22 @@ class DataRepository @Inject constructor(
         return db.note().getNoteAndAncestors(noteId)
     }
 
+    fun getNoteAtPath(fullPath: String): NoteView? {
+        val (bookName, path) = run {
+            val pathParts = fullPath.split("/")
+            if (pathParts.isEmpty()) return null
+            pathParts[0] to pathParts.drop(1).joinToString("/")
+        }
+        return if (path.split("/").any { it.isNotEmpty() })
+            getNotes(bookName)
+                    .filter { ("/$path").endsWith("/" + it.note.title) }
+                    .firstOrNull { view ->
+                        getNoteAndAncestors(view.note.id)
+                                .joinToString("/") { it.title } == path
+                    }
+        else null
+    }
+
     fun getNotesAndSubtrees(ids: Set<Long>): List<Note> {
         return db.note().getNotesForSubtrees(ids)
     }

app/src/main/java/com/orgzly/android/di/AppComponent.kt

@@ -7,6 +7,7 @@ import com.orgzly.android.TimeChangeBroadcastReceiver
 import com.orgzly.android.di.module.ApplicationModule
 import com.orgzly.android.di.module.DataModule
 import com.orgzly.android.di.module.DatabaseModule
+import com.orgzly.android.external.actionhandlers.ExternalAccessActionHandler
 import com.orgzly.android.reminders.NoteReminders
 import com.orgzly.android.reminders.RemindersBroadcastReceiver
 import com.orgzly.android.sync.SyncWorker
@@ -86,4 +87,5 @@ interface AppComponent {
     fun inject(arg: RemindersBroadcastReceiver)
     fun inject(arg: NotificationBroadcastReceiver)
     fun inject(arg: SharingShortcutsManager)
+    fun inject(arg: ExternalAccessActionHandler)
 }

app/src/main/java/com/orgzly/android/external/ExternalAccessReceiver.kt

@@ -0,0 +1,27 @@
+package com.orgzly.android.external
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import com.google.gson.GsonBuilder
+import com.orgzly.android.external.actionhandlers.*
+import com.orgzly.android.external.types.Response
+
+class ExternalAccessReceiver : BroadcastReceiver() {
+    val actionHandlers = listOf(
+            GetOrgInfo(),
+            RunSearch(),
+            EditNotes(),
+            EditSavedSearches(),
+            ManageWidgets()
+    )
+
+    override fun onReceive(context: Context?, intent: Intent?) {
+        val response = actionHandlers.asSequence()
+                .mapNotNull { it.handle(intent!!, context!!) }
+                .firstOrNull()
+                ?: Response(false, "Invalid action")
+        val gson = GsonBuilder().serializeNulls().create()
+        resultData = gson.toJson(response)
+    }
+}

app/src/main/java/com/orgzly/android/external/actionhandlers/EditNotes.kt

@@ -0,0 +1,53 @@
+package com.orgzly.android.external.actionhandlers
+
+import android.content.Intent
+import com.orgzly.android.external.types.ExternalHandlerFailure
+
+class EditNotes : ExternalAccessActionHandler() {
+    override val actions = listOf(
+            action(::addNote, "ADD_NOTE"),
+            action(::editNote, "EDIT_NOTE"),
+            action(::refileNote, "REFILE_NOTE", "REFILE_NOTES"),
+            action(::moveNote, "MOVE_NOTE", "MOVE_NOTES"),
+            action(::deleteNote, "DELETE_NOTE", "DELETE_NOTES")
+    )
+
+    private fun addNote(intent: Intent): String {
+        val place = intent.getNotePlace()
+        val newNote = intent.getNotePayload()
+        val note = dataRepository.createNote(newNote, place)
+        return "${note.id}"
+    }
+
+    private fun editNote(intent: Intent) {
+        val noteView = intent.getNote()
+        val newNote = intent.getNotePayload(title=noteView.note.title)
+        dataRepository.updateNote(noteView.note.id, newNote)
+    }
+
+    private fun refileNote(intent: Intent) {
+        val notes = intent.getNoteIds()
+        val place = intent.getNotePlace()
+        dataRepository.refileNotes(notes, place)
+    }
+
+    private fun moveNote(intent: Intent) {
+        val notes = intent.getNoteIds()
+        with(dataRepository) { when (intent.getStringExtra("DIRECTION")) {
+            "UP" -> moveNote(intent.getBook().id, notes, -1)
+            "DOWN" -> moveNote(intent.getBook().id, notes, 1)
+            "LEFT" -> promoteNotes(notes)
+            "RIGHT" -> demoteNotes(notes)
+            else -> throw ExternalHandlerFailure("invalid direction")
+        } }
+    }
+
+    private fun deleteNote(intent: Intent) {
+        intent.getNoteIds().groupBy {
+            dataRepository.getNoteView(it)?.bookName
+                    ?: throw ExternalHandlerFailure("invalid note id $it")
+        }.forEach { (bookName, notes) ->
+            dataRepository.deleteNotes(dataRepository.getBook(bookName)!!.id, notes.toSet())
+        }
+    }
+}

app/src/main/java/com/orgzly/android/external/actionhandlers/EditSavedSearches.kt

@@ -0,0 +1,45 @@
+package com.orgzly.android.external.actionhandlers
+
+import android.content.Intent
+import com.orgzly.android.db.entity.SavedSearch
+import com.orgzly.android.external.types.ExternalHandlerFailure
+
+class EditSavedSearches : ExternalAccessActionHandler() {
+    override val actions = listOf(
+            action(::addSavedSearch, "ADD_SAVED_SEARCH"),
+            action(::editSavedSearch, "EDIT_SAVED_SEARCH"),
+            action(::moveSavedSearch, "MOVE_SAVED_SEARCH"),
+            action(::deleteSavedSearch, "DELETE_SAVED_SEARCH"),
+    )
+
+    private fun addSavedSearch(intent: Intent): String {
+        val savedSearch = intent.getNewSavedSearch()
+        val id = dataRepository.createSavedSearch(savedSearch)
+        return "$id"
+    }
+
+    private fun editSavedSearch(intent: Intent) {
+        val savedSearch = intent.getSavedSearch()
+        val newSavedSearch = intent.getNewSavedSearch(allowBlank = true)
+        dataRepository.updateSavedSearch(SavedSearch(
+                savedSearch.id,
+                newSavedSearch.name.ifBlank { savedSearch.name },
+                newSavedSearch.query.ifBlank { savedSearch.query },
+                savedSearch.position
+        ))
+    }
+
+    private fun moveSavedSearch(intent: Intent) {
+        val savedSearch = intent.getSavedSearch()
+        when (intent.getStringExtra("DIRECTION")) {
+            "UP" -> dataRepository.moveSavedSearchUp(savedSearch.id)
+            "DOWN" -> dataRepository.moveSavedSearchDown(savedSearch.id)
+            else -> throw ExternalHandlerFailure("invalid direction")
+        }
+    }
+
+    private fun deleteSavedSearch(intent: Intent) {
+        val savedSearch = intent.getSavedSearch()
+        dataRepository.deleteSavedSearches(setOf(savedSearch.id))
+    }
+}

app/src/main/java/com/orgzly/android/external/actionhandlers/ExternalAccessActionHandler.kt

@@ -0,0 +1,45 @@
+package com.orgzly.android.external.actionhandlers
+
+import android.content.Context
+import android.content.Intent
+import com.orgzly.android.App
+import com.orgzly.android.data.DataRepository
+import com.orgzly.android.external.types.Response
+import javax.inject.Inject
+
+abstract class ExternalAccessActionHandler : ExternalIntentParser {
+    @Inject
+    override lateinit var dataRepository: DataRepository
+
+    init {
+        @Suppress("LeakingThis")
+        App.appComponent.inject(this)
+    }
+
+    abstract val actions: List<List<Pair<String, (Intent, Context) -> Any>>>
+    private val fullNameActions by lazy {
+        actions.flatten().toMap().mapKeys { (key, _) -> "com.orgzly.android.$key" }
+    }
+
+    fun action(f: (Intent, Context) -> Any, vararg names: String) = names.map { it to f }
+
+    @JvmName("intentAction")
+    fun action(f: (Intent) -> Any, vararg names: String) =
+            action({ i, _ -> f(i) }, *names)
+
+    @JvmName("contextAction")
+    fun action(f: (Context) -> Any, vararg names: String) =
+            action({ _, c -> f(c) }, *names)
+
+    fun action(f: () -> Any, vararg names: String) =
+            action({ _, _ -> f() }, *names)
+
+
+    fun handle(intent: Intent, context: Context) = try {
+        fullNameActions[intent.action!!]
+                ?.let { it(intent, context) }
+                ?.let { Response(true, if (it is Unit) null else it) }
+    } catch (e: Exception) {
+        Response(false, e.message)
+    }
+}

app/src/main/java/com/orgzly/android/external/actionhandlers/ExternalIntentParser.kt

@@ -0,0 +1,135 @@
+package com.orgzly.android.external.actionhandlers
+
+import android.content.Intent
+import com.google.gson.JsonElement
+import com.google.gson.JsonObject
+import com.google.gson.JsonParser
+import com.orgzly.android.data.DataRepository
+import com.orgzly.android.db.entity.NoteView
+import com.orgzly.android.db.entity.SavedSearch
+import com.orgzly.android.external.types.ExternalHandlerFailure
+import com.orgzly.android.query.user.InternalQueryParser
+import com.orgzly.android.ui.NotePlace
+import com.orgzly.android.ui.Place
+import com.orgzly.android.ui.note.NotePayload
+import com.orgzly.org.OrgProperties
+
+interface ExternalIntentParser {
+    val dataRepository: DataRepository
+
+    fun Intent.getNotePayload(title: String? = null): NotePayload {
+        val rawJson = getStringExtra("NOTE_PAYLOAD")
+        val json = try {
+            JsonParser.parseString(rawJson)
+                .let { if (it.isJsonObject) it.asJsonObject else null }!!
+        } catch (e: Exception) {
+            throw ExternalHandlerFailure("failed to parse json: ${e.message}\n$rawJson")
+        }
+        return NotePayload(
+            json.getString("title") ?: title
+                ?: throw ExternalHandlerFailure("no title supplied!\n$rawJson"),
+            json.getString("content"),
+            json.getString("state"),
+            json.getString("priority"),
+            json.getString("scheduled"),
+            json.getString("deadline"),
+            json.getString("closed"),
+            (json.getString("tags") ?: "")
+                .split(" +".toRegex())
+                .filter { it.isNotEmpty() },
+            OrgProperties().apply {
+                json["properties"]?.asMap?.forEach { (k, v) -> this[k] = v }
+            }
+        )
+    }
+
+    private fun getNoteByQuery(rawQuery: String?): NoteView {
+        if (rawQuery == null)
+            throw ExternalHandlerFailure("couldn't find note")
+        val query = InternalQueryParser().parse(rawQuery)
+        val notes = dataRepository.selectNotesFromQuery(query)
+        if (notes.isEmpty())
+            throw ExternalHandlerFailure("couldn't find note")
+        if (notes.size > 1)
+            throw ExternalHandlerFailure("query \"$rawQuery\" gave multiple results")
+        return notes[0]
+    }
+
+    fun Intent.getNote(prefix: String = "") =
+        dataRepository.getNoteView(getLongExtra("${prefix}NOTE_ID", -1))
+            ?: dataRepository.getNoteAtPath(getStringExtra("${prefix}NOTE_PATH") ?: "")
+            ?: getNoteByQuery(getStringExtra("${prefix}NOTE_QUERY"))
+
+    fun Intent.getNoteAndProps(prefix: String = "") = getNote(prefix).let {
+        it to dataRepository.getNoteProperties(it.note.id)
+    }
+
+    fun Intent.getBook(prefix: String = "") =
+        dataRepository.getBook(getLongExtra("${prefix}BOOK_ID", -1))
+            ?: dataRepository.getBook(getStringExtra("${prefix}BOOK_NAME") ?: "")
+            ?: throw ExternalHandlerFailure("couldn't find book")
+
+    fun Intent.getNotePlace() = try {
+        getNote(prefix="PARENT_").let { noteView ->
+            val place = try {
+                Place.valueOf(getStringExtra("PLACEMENT") ?: "")
+            } catch (e: IllegalArgumentException) { Place.UNDER }
+            dataRepository.getBook(noteView.bookName)?.let { book ->
+                NotePlace(book.id, noteView.note.id, place)
+            }
+        }
+    } catch (e: ExternalHandlerFailure) { null } ?: try {
+        NotePlace(getBook(prefix="PARENT_").id)
+    } catch (e: ExternalHandlerFailure) {
+        throw ExternalHandlerFailure("couldn't find parent note/book")
+    }
+
+    fun Intent.getNoteIds(allowSingle: Boolean = true, allowEmpty: Boolean = false): Set<Long> {
+        val id = if (allowSingle) getLongExtra("NOTE_ID", -1) else null
+        val ids = getLongArrayExtra("NOTE_IDS")?.toTypedArray() ?: emptyArray()
+        val path =
+            if (allowSingle)
+                getStringExtra("NOTE_PATH")
+                    ?.let { dataRepository.getNoteAtPath(it)?.note?.id }
+            else null
+        val paths = (getStringArrayExtra("NOTE_PATHS") ?: emptyArray())
+            .mapNotNull { dataRepository.getNoteAtPath(it)?.note?.id }
+            .toTypedArray()
+        return listOfNotNull(id, *ids, path, *paths).filter { it >= 0 }.toSet().also {
+            if (it.isEmpty() && !allowEmpty)
+                throw ExternalHandlerFailure("no notes specified")
+        }
+    }
+
+    fun Intent.getSavedSearch() =
+        dataRepository.getSavedSearch(getLongExtra("SAVED_SEARCH_ID", -1))
+            ?: dataRepository.getSavedSearches()
+                .find { it.name == getStringExtra("SAVED_SEARCH_NAME") }
+            ?: throw ExternalHandlerFailure("couldn't find saved search")
+
+    fun Intent.getNewSavedSearch(allowBlank: Boolean = false): SavedSearch {
+        val name = getStringExtra("SAVED_SEARCH_NEW_NAME")
+        val query = getStringExtra("SAVED_SEARCH_NEW_QUERY")
+        if (!allowBlank && (name.isNullOrBlank() || query.isNullOrBlank()))
+            throw ExternalHandlerFailure("invalid parameters for new saved search")
+        return SavedSearch(0, name ?: "", query ?: "", 0)
+    }
+
+    private fun JsonObject.getString(name: String) = this[name]?.let {
+        if (it.isJsonPrimitive && it.asJsonPrimitive.isString)
+            it.asJsonPrimitive.asString
+        else null
+    }
+
+    private val JsonElement.asMap: Map<String, String>?
+        get() = if (this.isJsonObject) {
+            this.asJsonObject
+                .entrySet()
+                .map {
+                    if (it.value.isJsonPrimitive)
+                        it.key to it.value.asJsonPrimitive.asString
+                    else return null
+                }
+                .toMap()
+        } else null
+}

app/src/main/java/com/orgzly/android/external/actionhandlers/GetOrgInfo.kt

@@ -0,0 +1,21 @@
+package com.orgzly.android.external.actionhandlers
+
+import android.content.Intent
+import com.orgzly.android.external.types.*
+
+class GetOrgInfo : ExternalAccessActionHandler() {
+    override val actions = listOf(
+        action(::getBooks, "GET_BOOKS"),
+        action(::getSavedSearches, "GET_SAVED_SEARCHES"),
+        action(::getNote, "GET_NOTE")
+    )
+
+    private fun getBooks() =
+            dataRepository.getBooks().map(Book::from).toTypedArray()
+
+    private fun getSavedSearches() =
+            dataRepository.getSavedSearches().map(SavedSearch::from).toTypedArray()
+
+    private fun getNote(intent: Intent) =
+            Note.from(intent.getNoteAndProps())
+}