chore: 实现 operation

Storage/Storage/Internal/Codec/LCEncoder.cs

@@ -17,7 +17,7 @@ namespace LeanCloud.Storage.Internal.Codec {
                 return EncodeDictionary(dict);
             } else if (obj is LCObject lcObj) {
                 return EncodeLCObject(lcObj);
-            } else if (obj is LCOperation op) {
+            } else if (obj is ILCOperation op) {
                 return EncodeOperation(op);
             } else if (obj is ILCQueryCondition cond) {
                 return EncodeQueryCondition(cond);
@@ -74,7 +74,7 @@ namespace LeanCloud.Storage.Internal.Codec {
             };
         }
 
-        static object EncodeOperation(LCOperation operation) {
+        static object EncodeOperation(ILCOperation operation) {
             return null;
         }
 

Storage/Storage/Internal/Operation/ILCOperation.cs

@@ -0,0 +1,14 @@
+using System.Collections;
+using System.Collections.Generic;
+
+namespace LeanCloud.Storage.Internal.Operation {
+    internal interface ILCOperation {
+        ILCOperation MergeWithPrevious(ILCOperation previousOp);
+
+        Dictionary<string, object> Encode();
+
+        object Apply(object oldValue, string key);
+
+        IEnumerable GetNewObjectList();
+    }
+}

Storage/Storage/Internal/Operation/LCAddOperation.cs

@@ -1,7 +1,49 @@
 using System;
+using System.Collections;
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
 namespace LeanCloud.Storage.Internal.Operation {
-    public class LCAddOperation {
-        public LCAddOperation() {
+    internal class LCAddOperation : ILCOperation {
+        internal List<object> valueList;
+
+        internal LCAddOperation(IEnumerable<object> values) {
+            valueList = new List<object>(values);
+        }
+
+        ILCOperation ILCOperation.MergeWithPrevious(ILCOperation previousOp) {
+            if (previousOp is LCSetOperation || previousOp is LCDeleteOperation) {
+                return previousOp;
+            }
+            if (previousOp is LCAddOperation addOp) {
+                valueList.AddRange(addOp.valueList);
+                return this;
+            }
+            if (previousOp is LCAddUniqueOperation addUniqueOp) {
+                valueList.AddRange(addUniqueOp.values);
+                return this;
+            }
+            throw new ArgumentException("Operation is invalid after previous operation.");
+        }
+
+        Dictionary<string, object> ILCOperation.Encode() {
+            return new Dictionary<string, object> {
+                { "op", "Add" },
+                { "objects", LCEncoder.Encode(valueList) }
+            };
+        }
+
+        object ILCOperation.Apply(object oldValue, string key) {
+            List<object> list = new List<object>();
+            if (oldValue != null) {
+                list.AddRange(oldValue as IEnumerable<object>);
+            }
+            list.AddRange(valueList);
+            return list;
+        }
+
+        IEnumerable ILCOperation.GetNewObjectList() {
+            return valueList;
         }
     }
 }

Storage/Storage/Internal/Operation/LCAddRelationOperation.cs

@@ -1,7 +1,43 @@
 using System;
+using System.Linq;
+using System.Collections;
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
 namespace LeanCloud.Storage.Internal.Operation {
-    public class LCAddRelationOperation {
-        public LCAddRelationOperation() {
+    internal class LCAddRelationOperation : ILCOperation {
+        List<LCObject> valueList;
+
+        internal LCAddRelationOperation(IEnumerable<LCObject> objects) {
+            valueList = new List<LCObject>(objects);
+        }
+
+        public ILCOperation MergeWithPrevious(ILCOperation previousOp) {
+            if (previousOp is LCSetOperation || previousOp is LCDeleteOperation) {
+                return previousOp;
+            }
+            if (previousOp is LCAddRelationOperation addRelationOp) {
+                valueList.AddRange(addRelationOp.valueList);
+                return this;
+            }
+            throw new ArgumentException("Operation is invalid after previous operation.");
+        }
+
+        public Dictionary<string, object> Encode() {
+            return new Dictionary<string, object> {
+                { "__op", "AddRelation" },
+                { "objects", LCEncoder.Encode(valueList) }
+            };
+        }
+
+        public object Apply(object oldValue, string key) {
+            LCRelation<LCObject> relation = new LCRelation<LCObject>();
+            relation.targetClass = valueList[0].ClassName;
+            return relation;
+        }
+
+        public IEnumerable GetNewObjectList() {
+            return valueList;
         }
     }
 }

Storage/Storage/Internal/Operation/LCAddUniqueOperation.cs

@@ -1,7 +1,46 @@
 using System;
+using System.Linq;
+using System.Collections;
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
 namespace LeanCloud.Storage.Internal.Operation {
-    public class LCAddUniqueOperation {
-        public LCAddUniqueOperation() {
+    internal class LCAddUniqueOperation : ILCOperation {
+        internal HashSet<object> values;
+
+        internal LCAddUniqueOperation(IEnumerable<object> values) {
+            this.values = new HashSet<object>(values);
+        }
+
+        public ILCOperation MergeWithPrevious(ILCOperation previousOp) {
+            if (previousOp is LCSetOperation || previousOp is LCDeleteOperation) {
+                return previousOp;
+            }
+            if (previousOp is LCAddUniqueOperation addUniqueOp) {
+                values.UnionWith(addUniqueOp.values);
+                return this;
+            }
+            throw new ArgumentException("Operation is invalid after previous operation.");
+        }
+
+        public Dictionary<string, object> Encode() {
+            return new Dictionary<string, object> {
+                { "__op", "AddUnique" },
+                { "objects", LCEncoder.Encode(values.ToList()) }
+            };
+        }
+
+        public object Apply(object oldValue, string key) {
+            HashSet<object> set = new HashSet<object>();
+            if (oldValue != null) {
+                set.UnionWith(oldValue as IEnumerable<object>);
+            }
+            set.UnionWith(values);
+            return set;
+        }
+
+        public IEnumerable GetNewObjectList() {
+            return values;
         }
     }
 }

Storage/Storage/Internal/Operation/LCDecrementOperation.cs

@@ -1,7 +1,28 @@
 using System;
+using System.Collections;
+using System.Collections.Generic;
+
 namespace LeanCloud.Storage.Internal.Operation {
-    public class LCDecrementOperation {
-        public LCDecrementOperation() {
+    internal class LCDecrementOperation : ILCOperation {
+        
+
+        internal LCDecrementOperation() {
         }
+
+        public ILCOperation MergeWithPrevious(ILCOperation previousOp) {
+            throw new NotImplementedException();
+        }
+
+        public Dictionary<string, object> Encode() {
+            throw new NotImplementedException();
+        }
+
+        public object Apply(object oldValue, string key) {
+            throw new NotImplementedException();
+        }
+
+        public IEnumerable GetNewObjectList() {
+            throw new NotImplementedException();
+        }        
     }
 }

Storage/Storage/Internal/Operation/LCDeleteOperation.cs

@@ -1,7 +1,28 @@
 using System;
+using System.Collections;
+using System.Collections.Generic;
+
 namespace LeanCloud.Storage.Internal.Operation {
-    public class LCDeleteOperation {
-        public LCDeleteOperation() {
+    internal class LCDeleteOperation : ILCOperation {
+        internal LCDeleteOperation() {
+        }
+
+        public ILCOperation MergeWithPrevious(ILCOperation previousOp) {
+            return this;
+        }
+
+        public Dictionary<string, object> Encode() {
+            return new Dictionary<string, object> {
+                { "__op", "Delete" }
+            };
+        }
+
+        public object Apply(object oldValue, string key) {
+            return null;
+        }
+
+        public IEnumerable GetNewObjectList() {
+            return null;
         }
     }
 }

Storage/Storage/Internal/Operation/LCOperation.cs

@@ -1,7 +0,0 @@
-using System;
-namespace LeanCloud.Storage.Internal.Operation {
-    public class LCOperation {
-        public LCOperation() {
-        }
-    }
-}

Storage/Storage/Internal/Operation/LCRemoveOperation.cs

@@ -1,7 +1,46 @@
 using System;
+using System.Linq;
+using System.Collections;
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
 namespace LeanCloud.Storage.Internal.Operation {
-    public class LCRemoveOperation {
-        public LCRemoveOperation() {
+    internal class LCRemoveOperation : ILCOperation {
+        List<object> valueList;
+
+        internal LCRemoveOperation(IEnumerable values) {
+            valueList = new List<object> {
+                values.Cast<object>()
+            };
+        }
+
+        public ILCOperation MergeWithPrevious(ILCOperation previousOp) {
+            if (previousOp is LCSetOperation || previousOp is LCDeleteOperation) {
+                return previousOp;
+            }
+            if (previousOp is LCRemoveOperation removeOp) {
+                valueList.AddRange(removeOp.valueList);
+            }
+            throw new ArgumentException("Operation is invalid after previous operation.");
+        }
+
+        public Dictionary<string, object> Encode() {
+            return new Dictionary<string, object> {
+                { "__op", "Remove" },
+                { "objects", LCEncoder.Encode(valueList) }
+            };
+        }
+
+        public object Apply(object oldValue, string key) {
+            List<object> list = new List<object>();
+            if (oldValue != null) {
+                list.AddRange(oldValue as IEnumerable<object>);
+            }
+            return list;
+        }
+
+        public IEnumerable GetNewObjectList() {
+            return null;
         }
     }
 }

Storage/Storage/Internal/Operation/LCRemoveRelationOperation.cs

@@ -1,7 +1,42 @@
 using System;
+using System.Collections;
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
 namespace LeanCloud.Storage.Internal.Operation {
-    public class LCRemoveRelationOperation {
-        public LCRemoveRelationOperation() {
+    internal class LCRemoveRelationOperation : ILCOperation {
+        List<LCObject> valueList;
+
+        internal LCRemoveRelationOperation(LCObject obj) {
+            valueList = new List<LCObject> { obj };
+        }
+
+        public ILCOperation MergeWithPrevious(ILCOperation previousOp) {
+            if (previousOp is LCSetOperation || previousOp is LCDeleteOperation) {
+                return previousOp;
+            }
+            if (previousOp is LCRemoveRelationOperation removeRelationOp) {
+                valueList.AddRange(removeRelationOp.valueList);
+                return this;
+            }
+            throw new ArgumentException("Operation is invalid after previous operation.");
+        }
+
+        public Dictionary<string, object> Encode() {
+            return new Dictionary<string, object> {
+                { "__op", "RemoveRelation" },
+                { "objects", LCEncoder.Encode(valueList) }
+            };
+        }
+
+        public object Apply(object oldValue, string key) {
+            LCRelation<LCObject> relation = new LCRelation<LCObject>();
+            relation.targetClass = valueList[0].ClassName;
+            return relation;
+        }
+
+        public IEnumerable GetNewObjectList() {
+            return null;
         }
     }
 }

Storage/Storage/Internal/Operation/LCSetOperation.cs

@@ -1,7 +1,33 @@
 using System;
-namespace LeanCloud.Storage.Internal {
-    public class LCSetOperation {
-        public LCSetOperation() {
+using System.Collections;
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
+namespace LeanCloud.Storage.Internal.Operation {
+    internal class LCSetOperation : ILCOperation {
+        object value;
+
+        internal LCSetOperation(object value) {
+            this.value = value;
         }
+
+        public ILCOperation MergeWithPrevious(ILCOperation previousOp) {
+            return this;
+        }
+
+        public Dictionary<string, object> Encode() {
+            return LCEncoder.Encode(value) as Dictionary<string, object>;
+        }
+
+        public object Apply(object oldValue, string key) {
+            return value;
+        }
+
+        public IEnumerable GetNewObjectList() {
+            if (value is IEnumerable enumerable) {
+                return enumerable;
+            }
+            return new List<object> { value };
+        }        
     }
 }

Storage/Storage/LCObject.cs

@@ -20,7 +20,7 @@ namespace LeanCloud.Storage {
         /// <summary>
         /// 操作字典
         /// </summary>
-        Dictionary<string, LCOperation> operationDict;
+        Dictionary<string, ILCOperation> operationDict;
 
         public string ClassName {
             get {

Storage/Storage/LCRole.cs

@@ -1,4 +1,5 @@
 using System;
+
 namespace LeanCloud.Storage {
     public class LCRole : LCObject {
         public LCRole() {