Fix LocationOfInterest display name

ground/src/main/java/com/google/android/ground/Config.kt

@@ -26,7 +26,7 @@ object Config {
 
   // Local db settings.
   // TODO(#128): Reset version to 1 before releasing.
-  const val DB_VERSION = 109
+  const val DB_VERSION = 110
   const val DB_NAME = "ground.db"
 
   // Firebase Cloud Firestore settings.

ground/src/main/java/com/google/android/ground/model/locationofinterest/LocationOfInterest.kt

@@ -22,6 +22,9 @@ import com.google.android.ground.model.mutation.LocationOfInterestMutation
 import com.google.android.ground.model.mutation.Mutation
 import com.google.android.ground.model.mutation.Mutation.SyncStatus
 
+/** Alias for a map of properties with string names. */
+typealias LoiProperties = Map<String, Any>
+
 /** User-defined locations of interest (LOI) shown on the map. */
 data class LocationOfInterest(
   /** A system-defined ID for this LOI. */
@@ -31,9 +34,7 @@ data class LocationOfInterest(
   /** The job associated with this LOI. */
   val job: Job,
   /** A user-specified ID for this location of interest. */
-  val customId: String? = null,
-  /** A human readable caption for this location of interest. */
-  val caption: String? = null,
+  val customId: String = "",
   /** User and time audit info pertaining to the creation of this LOI. */
   val created: AuditInfo,
   /** User and time audit info pertaining to the last modification of this LOI. */
@@ -51,7 +52,9 @@ data class LocationOfInterest(
    * Whether this LOI was created opportunistically by the user through the Suggest LOI flow, or
    * false if the LOI was created by the survey organizer.
    */
-  val isOpportunistic: Boolean = false
+  val isOpportunistic: Boolean = false,
+  /** Custom map of properties for this LOI. Corresponds to the properties field in GeoJSON */
+  val properties: LoiProperties = mapOf(),
 ) {
 
   /**
@@ -66,11 +69,12 @@ data class LocationOfInterest(
       surveyId = surveyId,
       locationOfInterestId = id,
       userId = userId,
+      customId = customId,
       clientTimestamp = lastModified.clientTimestamp,
       geometry = geometry,
-      caption = caption,
       submissionCount = submissionCount,
       ownerEmail = ownerEmail,
-      isOpportunistic = isOpportunistic
+      isOpportunistic = isOpportunistic,
+      properties = properties
     )
 }

ground/src/main/java/com/google/android/ground/model/mutation/LocationOfInterestMutation.kt

@@ -16,6 +16,7 @@
 package com.google.android.ground.model.mutation
 
 import com.google.android.ground.model.geometry.Geometry
+import com.google.android.ground.model.locationofinterest.LoiProperties
 import java.util.Date
 
 data class LocationOfInterestMutation(
@@ -29,9 +30,10 @@ data class LocationOfInterestMutation(
   override val retryCount: Long = 0,
   override val lastError: String = "",
   val jobId: String = "",
+  val customId: String = "",
   val geometry: Geometry? = null,
-  val caption: String? = null,
   val submissionCount: Int = 0,
   val ownerEmail: String? = null,
-  val isOpportunistic: Boolean = false
+  val isOpportunistic: Boolean = false,
+  val properties: LoiProperties = mapOf(),
 ) : Mutation()

ground/src/main/java/com/google/android/ground/persistence/local/room/LocalDatabase.kt

@@ -22,6 +22,7 @@ import com.google.android.ground.Config
 import com.google.android.ground.persistence.local.room.converter.GeometryWrapperTypeConverter
 import com.google.android.ground.persistence.local.room.converter.JsonArrayTypeConverter
 import com.google.android.ground.persistence.local.room.converter.JsonObjectTypeConverter
+import com.google.android.ground.persistence.local.room.converter.LoiPropertiesMapConverter
 import com.google.android.ground.persistence.local.room.converter.StyleTypeConverter
 import com.google.android.ground.persistence.local.room.dao.*
 import com.google.android.ground.persistence.local.room.entity.*
@@ -64,7 +65,8 @@ import com.google.android.ground.persistence.local.room.fields.*
   MutationEntitySyncStatus::class,
   OfflineAreaEntityState::class,
   StyleTypeConverter::class,
-  TileSetEntityState::class
+  TileSetEntityState::class,
+  LoiPropertiesMapConverter::class,
 )
 abstract class LocalDatabase : RoomDatabase() {
   abstract fun locationOfInterestDao(): LocationOfInterestDao

ground/src/main/java/com/google/android/ground/persistence/local/room/converter/ConverterExt.kt

@@ -130,13 +130,14 @@ fun LocationOfInterest.toLocalDataStoreObject() =
     surveyId = surveyId,
     jobId = job.id,
     state = EntityState.DEFAULT,
-    caption = caption,
     created = created.toLocalDataStoreObject(),
     lastModified = lastModified.toLocalDataStoreObject(),
     geometry = geometry.toLocalDataStoreObject(),
+    customId = customId,
     submissionCount = submissionCount,
     ownerEmail = ownerEmail,
-    isOpportunistic = isOpportunistic
+    isOpportunistic = isOpportunistic,
+    properties = properties,
   )
 
 fun LocationOfInterestEntity.toModelObject(survey: Survey): LocationOfInterest =
@@ -148,9 +149,10 @@ fun LocationOfInterestEntity.toModelObject(survey: Survey): LocationOfInterest =
       surveyId = surveyId,
       created = created.toModelObject(),
       lastModified = lastModified.toModelObject(),
-      caption = caption,
+      customId = customId,
       geometry = geometry.getGeometry(),
       submissionCount = submissionCount,
+      properties = properties,
       job = survey.getJob(jobId = jobId)
           ?: throw LocalDataConsistencyException(
             "Unknown jobId ${this.jobId} in location of interest ${this.id}"
@@ -173,14 +175,15 @@ fun LocationOfInterestMutation.toLocalDataStoreObject(user: User): LocationOfInt
     surveyId = surveyId,
     jobId = jobId,
     state = EntityState.DEFAULT,
-    caption = caption,
     // TODO(#1562): Preserve creation audit info for UPDATE mutations.
     created = auditInfo,
     lastModified = auditInfo,
     geometry = geometry?.toLocalDataStoreObject(),
+    customId = customId,
     submissionCount = submissionCount,
     ownerEmail = ownerEmail,
-    isOpportunistic = isOpportunistic
+    isOpportunistic = isOpportunistic,
+    properties = properties
   )
 }
 
@@ -191,13 +194,14 @@ fun LocationOfInterestMutation.toLocalDataStoreObject() =
     jobId = jobId,
     type = MutationEntityType.fromMutationType(type),
     newGeometry = geometry?.toLocalDataStoreObject(),
-    caption = caption,
+    newCustomId = customId,
     userId = userId,
     locationOfInterestId = locationOfInterestId,
     syncStatus = MutationEntitySyncStatus.fromMutationSyncStatus(syncStatus),
     clientTimestamp = clientTimestamp.time,
     lastError = lastError,
-    retryCount = retryCount
+    retryCount = retryCount,
+    newProperties = properties
   )
 
 fun LocationOfInterestMutationEntity.toModelObject() =
@@ -207,13 +211,14 @@ fun LocationOfInterestMutationEntity.toModelObject() =
     jobId = jobId,
     type = type.toMutationType(),
     geometry = newGeometry?.getGeometry(),
-    caption = caption,
+    customId = newCustomId,
     userId = userId,
     locationOfInterestId = locationOfInterestId,
     syncStatus = syncStatus.toMutationSyncStatus(),
     clientTimestamp = Date(clientTimestamp),
     lastError = lastError,
     retryCount = retryCount,
+    properties = newProperties
   )
 
 fun MultipleChoiceEntity.toModelObject(optionEntities: List<OptionEntity>): MultipleChoice {

ground/src/main/java/com/google/android/ground/persistence/local/room/converter/LoiPropertiesMapConverter.kt

@@ -0,0 +1,50 @@
+/*
+ * Copyright 2023 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.android.ground.persistence.local.room.converter
+
+import androidx.room.TypeConverter
+import com.google.common.reflect.TypeToken
+import com.google.gson.Gson
+import com.google.gson.JsonSyntaxException
+import kotlinx.collections.immutable.toPersistentMap
+import org.json.JSONException
+import org.json.JSONObject
+import timber.log.Timber
+
+object LoiPropertiesMapConverter {
+  @TypeConverter
+  fun toString(properties: Map<String, Any>): String {
+    var jsonString = ""
+    try {
+      jsonString = JSONObject(properties).toString()
+    } catch (e: JSONException) {
+      Timber.e(e, "Error building JSON")
+    }
+    return jsonString
+  }
+
+  @TypeConverter
+  fun fromString(jsonString: String): Map<String, Any> {
+    var map = mutableMapOf<String, Any>()
+    try {
+      val type = object : TypeToken<Map<String, Any>>() {}.type
+      map = Gson().fromJson(jsonString, type)
+    } catch (e: JsonSyntaxException) {
+      Timber.e(e, "Error parsing JSON string")
+    }
+    return map.toPersistentMap()
+  }
+}

ground/src/main/java/com/google/android/ground/persistence/local/room/entity/LocationOfInterestEntity.kt

@@ -16,6 +16,7 @@
 package com.google.android.ground.persistence.local.room.entity
 
 import androidx.room.*
+import com.google.android.ground.model.locationofinterest.LoiProperties
 import com.google.android.ground.persistence.local.room.fields.EntityState
 
 /**
@@ -28,11 +29,12 @@ data class LocationOfInterestEntity(
   @ColumnInfo(name = "survey_id") val surveyId: String,
   @ColumnInfo(name = "job_id") val jobId: String,
   @ColumnInfo(name = "state") val state: EntityState, // TODO: Rename to DeletionState.
-  @ColumnInfo(name = "caption") val caption: String?,
   @Embedded(prefix = "created_") val created: AuditInfoEntity,
   @Embedded(prefix = "modified_") val lastModified: AuditInfoEntity,
   val geometry: GeometryWrapper?,
+  val customId: String,
   val submissionCount: Int,
   val ownerEmail: String?,
-  val isOpportunistic: Boolean
+  val isOpportunistic: Boolean,
+  val properties: LoiProperties,
 )

ground/src/main/java/com/google/android/ground/persistence/local/room/entity/LocationOfInterestMutationEntity.kt

@@ -16,6 +16,7 @@
 package com.google.android.ground.persistence.local.room.entity
 
 import androidx.room.*
+import com.google.android.ground.model.locationofinterest.LoiProperties
 import com.google.android.ground.persistence.local.room.fields.MutationEntitySyncStatus
 import com.google.android.ground.persistence.local.room.fields.MutationEntityType
 
@@ -48,7 +49,8 @@ data class LocationOfInterestMutationEntity(
   @ColumnInfo(name = "client_timestamp") val clientTimestamp: Long,
   @ColumnInfo(name = "location_of_interest_id") val locationOfInterestId: String,
   @ColumnInfo(name = "job_id") val jobId: String,
-  @ColumnInfo(name = "caption") val caption: String?,
   /** Non-null if the LOI's geometry was updated, null if unchanged. */
   val newGeometry: GeometryWrapper?,
+  val newProperties: LoiProperties,
+  val newCustomId: String
 )

ground/src/main/java/com/google/android/ground/persistence/remote/firebase/schema/LoiConverter.kt

@@ -64,14 +64,14 @@ object LoiConverter {
     return LocationOfInterest(
       id = loiId,
       surveyId = survey.id,
-      customId = loiDoc.customId,
-      caption = loiDoc.caption,
+      customId = loiDoc.customId ?: "",
       job = job,
       created = AuditInfoConverter.toAuditInfo(created),
       lastModified = AuditInfoConverter.toAuditInfo(lastModified),
       // TODO(#929): Set geometry once LOI has been updated to use our own model.
       geometry = geometry,
-      submissionCount = submissionCount
+      submissionCount = submissionCount,
+      properties = loiDoc.properties ?: mapOf()
     )
   }
 }

ground/src/main/java/com/google/android/ground/persistence/remote/firebase/schema/LoiDocument.kt

@@ -16,6 +16,7 @@
 
 package com.google.android.ground.persistence.remote.firebase.schema
 
+import com.google.android.ground.model.locationofinterest.LoiProperties
 import com.google.firebase.firestore.GeoPoint
 import com.google.firebase.firestore.IgnoreExtraProperties
 
@@ -24,11 +25,11 @@ import com.google.firebase.firestore.IgnoreExtraProperties
 data class LoiDocument(
   val jobId: String? = null,
   val customId: String? = null,
-  val caption: String? = null,
   val location: GeoPoint? = null,
   val geoJson: String? = null,
   val geometry: Map<String, Any>? = null,
   val created: AuditInfoNestedObject? = null,
   val lastModified: AuditInfoNestedObject? = null,
-  val submissionCount: Int? = null
+  val submissionCount: Int? = null,
+  val properties: LoiProperties? = null,
 )

ground/src/main/java/com/google/android/ground/ui/common/LocationOfInterestHelper.kt

@@ -34,7 +34,8 @@ class LocationOfInterestHelper @Inject internal constructor(private val resource
     locationOfInterest.map(::getLabel).orElse("")
 
   fun getLabel(loi: LocationOfInterest): String {
-    val caption = loi.caption?.trim { it <= ' ' } ?: ""
+    // TODO(#2046): Reuse logic from card util to display LOI label
+    val caption = loi.customId?.trim { it <= ' ' } ?: ""
     return caption.ifEmpty { getLocationOfInterestType(loi) }
   }
 

ground/src/main/java/com/google/android/ground/ui/home/mapcontainer/cards/LoiCardUtil.kt

@@ -28,15 +28,16 @@ import com.google.android.ground.util.isNotNullOrEmpty
 object LoiCardUtil {
 
   fun getDisplayLoiName(context: Context, loi: LocationOfInterest): String {
-    val caption = loi.caption
-    val customId = loi.customId
+    val loiId =
+      if (loi.customId.isNotNullOrEmpty()) loi.customId else loi.properties?.get("id")?.toString()
     val geometry = loi.geometry
-    return if (caption.isNotNullOrEmpty() && customId.isNotNullOrEmpty()) {
-      "$caption ($customId)"
-    } else if (caption.isNotNullOrEmpty()) {
-      "$caption"
-    } else if (customId.isNotNullOrEmpty()) {
-      "${geometry.toType(context)} ($customId)"
+    val name: String? = loi.properties?.get("name")?.toString()
+    return if (name.isNotNullOrEmpty() && loiId.isNotNullOrEmpty()) {
+      "$name ($loiId)"
+    } else if (name.isNotNullOrEmpty()) {
+      "$name"
+    } else if (loiId.isNotNullOrEmpty()) {
+      "${geometry.toType(context)} ($loiId)"
     } else {
       geometry.toDefaultName(context)
     }

ground/src/test/java/com/google/android/ground/persistence/remote/firebase/schema/LoiLocalDataStoreConverterTest.kt

@@ -58,15 +58,13 @@ class LoiLocalDataStoreConverterTest {
     mockLoiDocumentSnapshot(
       "loi001",
       LoiDocument(
-        /* jobId */
-        "job001", /* customId */
-        null, /* caption */
-        null, /* location */
-        null, /* geoJson */
-        null, /* geometry */
-        null, /* created */
-        AUDIT_INFO_1_NESTED_OBJECT, /* lastModified */
-        AUDIT_INFO_2_NESTED_OBJECT
+        /* jobId */ "job001",
+        /* customId */ null,
+        /* location */ null,
+        /* geoJson */ null,
+        /* geometry */ null,
+        /* created */ AUDIT_INFO_1_NESTED_OBJECT,
+        /* lastModified */ AUDIT_INFO_2_NESTED_OBJECT
       )
     )
     assertThat(toLocationOfInterest().isFailure).isTrue()
@@ -93,7 +91,6 @@ class LoiLocalDataStoreConverterTest {
         null,
         null,
         null,
-        null,
         noVerticesGeometry,
         AUDIT_INFO_1_NESTED_OBJECT,
         AUDIT_INFO_2_NESTED_OBJECT