Implement getTableStructure command.

Reviewed By: lblasa

Differential Revision: D48191484

fbshipit-source-id: 6838590f4e10b4613074e9e9d112a62d4688f739

iOS/Plugins/FlipperKitDatabasesPlugin/FlipperKitDatabasesPlugin/Commands/DatabaseGetTableStructure.h

@@ -30,5 +30,7 @@
 @property(nonatomic, copy, readonly) NSString* table;
 
 - (instancetype)initWithDatabaseId:(NSInteger)databaseId table:(NSString*)table;
++ (DatabaseGetTableStructureRequest*)getTableStructureRequestFromDictionary:
+    (NSDictionary*)dictionary;
 
 @end

iOS/Plugins/FlipperKitDatabasesPlugin/FlipperKitDatabasesPlugin/Commands/DatabaseGetTableStructure.m

@@ -38,4 +38,15 @@
   return self;
 }
 
++ (DatabaseGetTableStructureRequest*)getTableStructureRequestFromDictionary:
+    (NSDictionary*)params {
+  int databaseId = [params[@"databaseId"] integerValue];
+  NSString* table = params[@"table"];
+  if (databaseId <= 0 || !table) {
+    return nil;
+  }
+  return [[DatabaseGetTableStructureRequest alloc] initWithDatabaseId:databaseId
+                                                                table:table];
+}
+
 @end

iOS/Plugins/FlipperKitDatabasesPlugin/FlipperKitDatabasesPlugin/DatabaseDriver.h

@@ -8,12 +8,14 @@
 #import <Foundation/Foundation.h>
 
 @protocol DatabaseDescriptor;
+@class DatabaseGetTableStructureRequest;
+@class DatabaseGetTableStructureResponse;
 
 @protocol DatabaseDriver<NSObject>
-@property(nonatomic, strong, readonly) id<DatabaseDescriptor>
-    databaseDescriptor;
-
 - (NSArray<id<DatabaseDescriptor>>*)getDatabases;
 - (NSArray<NSString*>*)getTableNames:(id<DatabaseDescriptor>)databaseDescriptor;
-
+- (DatabaseGetTableStructureResponse*)
+    getTableStructureWithDatabaseDescriptor:
+        (id<DatabaseDescriptor>)databaseDescriptor
+                                   forTable:(NSString*)tableName;
 @end

iOS/Plugins/FlipperKitDatabasesPlugin/FlipperKitDatabasesPlugin/DatabasesManager.m

@@ -77,19 +77,58 @@
           }
         }
 
-        NSDictionary* result = [ObjectMapper
+        id result = [ObjectMapper
-            databaseListToDictionary:self.databaseDescriptorHolderSet];
+            databaseListToFlipperArray:self.databaseDescriptorHolderSet];
         [responder success:result];
       }];
 
   [self.connection
         receive:@"getTableData"
       withBlock:^(NSDictionary* params, id<FlipperResponder> responder){
+
       }];
 
   [self.connection
         receive:@"getTableStructure"
-      withBlock:^(NSDictionary* params, id<FlipperResponder> responder){
+      withBlock:^(NSDictionary* params, id<FlipperResponder> responder) {
+        DatabaseGetTableStructureRequest* request =
+            [DatabaseGetTableStructureRequest
+                getTableStructureRequestFromDictionary:params];
+
+        if (!request) {
+          NSDictionary* errorResponse = [ObjectMapper
+              errorWithCode:DatabasesErrorCodesInvalidRequest
+                    message:kDatabasesErrorCodesInvalidRequestMessage];
+          [responder error:errorResponse];
+          return;
+        }
+
+        DatabaseDescriptorHolder* descriptorHolder =
+            self.databaseDescriptorHolders[@(request.databaseId)];
+        if (!descriptorHolder) {
+          NSDictionary* errorResponse = [ObjectMapper
+              errorWithCode:DatabasesErrorCodesDatabaseInvalid
+                    message:kDatabasesErrorCodesDatabaseInvalidMessage];
+          [responder error:errorResponse];
+          return;
+        }
+
+        @try {
+          DatabaseGetTableStructureResponse* tableStructure =
+              [descriptorHolder.databaseDriver
+                  getTableStructureWithDatabaseDescriptor:
+                      descriptorHolder.databaseDescriptor
+                                                 forTable:request.table];
+          NSDictionary* response = [ObjectMapper
+              databaseGetTableStructureResponseToDictionary:tableStructure];
+          [responder success:response];
+        } @catch (NSException* exception) {
+          NSDictionary* errorResponse = [ObjectMapper
+              errorWithCode:DatabasesErrorCodesSqlExecutionException
+                    message:[kDatabasesErrorCodesSqlExecutionExceptionMessage
+                                stringByAppendingString:exception.reason]];
+          [responder error:errorResponse];
+        }
       }];
 
   [self.connection

iOS/Plugins/FlipperKitDatabasesPlugin/FlipperKitDatabasesPlugin/Mock/MockDatabaseDriver.m

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "MockDatabaseDriver.h"
+#import "DatabaseGetTableStructure.h"
+#import "MockDatabaseDescriptor.h"
+
+@implementation MockDatabaseDriver
+
+- (NSArray<id<DatabaseDescriptor>>*)getDatabases {
+  MockDatabaseDescriptor* mockDescriptor =
+      [[MockDatabaseDescriptor alloc] init];
+  return @[ mockDescriptor ];
+}
+
+- (NSArray<NSString*>*)getTableNames:
+    (id<DatabaseDescriptor>)databaseDescriptor {
+  return @[ @"MockTable1", @"MockTable2" ];
+}
+
+- (DatabaseGetTableStructureResponse*)
+    getTableStructureWithDatabaseDescriptor:
+        (id<DatabaseDescriptor>)databaseDescriptor
+                                   forTable:(NSString*)tableName {
+  NSMutableArray<NSString*>* structureColumns =
+      [NSMutableArray arrayWithObjects:@"id", @"name", @"age", nil];
+  NSMutableArray<NSArray<NSString*>*>* structureValues =
+      [NSMutableArray arrayWithObjects:@[ @"1", @"John", @"25" ],
+                                       @[ @"2", @"Jane", @"30" ],
+                                       nil];
+  NSMutableArray<NSString*>* indexesColumns = [NSMutableArray
+      arrayWithObjects:@"index_name", @"unique", @"indexed_column_name", nil];
+  NSMutableArray<NSArray<NSString*>*>* indexesValues = [NSMutableArray
+      arrayWithObjects:@[ @"index_name1", @"false", @"id,name" ],
+                       @[ @"index_name2", @"true", @"age" ],
+                       nil];
+
+  return [[DatabaseGetTableStructureResponse alloc]
+      initWithStructureColumns:[structureColumns copy]
+               structureValues:[structureValues copy]
+                indexesColumns:[indexesColumns copy]
+                 indexesValues:[indexesValues copy]];
+}
+
+@end

iOS/Plugins/FlipperKitDatabasesPlugin/FlipperKitDatabasesPlugin/MockDatabaseDriver.m

@@ -1,26 +0,0 @@
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-#import "MockDatabaseDriver.h"
-#import "MockDatabaseDescriptor.h"
-
-@implementation MockDatabaseDriver
-
-- (NSArray<id<DatabaseDescriptor>>*)getDatabases {
-  MockDatabaseDescriptor* mockDescriptor =
-      [[MockDatabaseDescriptor alloc] init];
-  return @[ mockDescriptor ];
-}
-
-- (NSArray<NSString*>*)getTableNames:
-    (id<DatabaseDescriptor>)databaseDescriptor {
-  return @[ @"MockTable1", @"MockTable2" ];
-}
-
-@synthesize databaseDescriptor;
-
-@end

iOS/Plugins/FlipperKitDatabasesPlugin/FlipperKitDatabasesPlugin/ObjectMapper.h

@@ -15,7 +15,7 @@
 
 @interface ObjectMapper : NSObject
 
-+ (NSDictionary*)databaseListToDictionary:
++ (NSMutableArray*)databaseListToFlipperArray:
     (NSMutableSet<DatabaseDescriptorHolder*>*)databaseDescriptorHolderSet;
 + (NSDictionary*)databaseGetTableDataResponseToDictionary:
     (DatabaseGetTableDataResponse*)response;

iOS/Plugins/FlipperKitDatabasesPlugin/FlipperKitDatabasesPlugin/ObjectMapper.m

@@ -15,9 +15,9 @@
 
 @implementation ObjectMapper
 
-+ (NSDictionary*)databaseListToDictionary:
++ (NSMutableArray*)databaseListToFlipperArray:
     (NSMutableSet<DatabaseDescriptorHolder*>*)databaseDescriptorHolderSet {
-  NSMutableDictionary* result = [NSMutableDictionary new];
+  NSMutableArray* result = [NSMutableArray new];
 
   for (DatabaseDescriptorHolder* holder in databaseDescriptorHolderSet) {
     NSArray<NSString*>* tables =
@@ -25,12 +25,13 @@
     NSArray<NSString*>* sortedTableNames =
         [tables sortedArrayUsingSelector:@selector(compare:)];
     NSString* idString = [NSString stringWithFormat:@"%ld", holder.identifier];
+
     NSDictionary* databaseInfo = @{
       @"id" : idString,
       @"name" : holder.databaseDescriptor.name,
       @"tables" : sortedTableNames
     };
-    [result setObject:databaseInfo forKey:idString];
+    [result addObject:databaseInfo];
   }
 
   return result;
@@ -47,7 +48,12 @@
 
 + (NSDictionary*)databaseGetTableStructureResponseToDictionary:
     (DatabaseGetTableStructureResponse*)response {
-  return @{};
+  return @{
+    @"structureColumns" : response.structureColumns,
+    @"structureValues" : response.structureValues,
+    @"indexesColumns" : response.indexesColumns,
+    @"indexesValues" : response.indexesValues
+  };
 }
 
 + (NSDictionary*)databaseGetTableInfoResponseToDictionary: