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| 1 | +// Copyright Valkey GLIDE Project Contributors - SPDX Identifier: Apache-2.0 |
| 2 | + |
| 3 | +namespace Valkey.Glide.ServerModules; |
| 4 | + |
| 5 | +/// <summary> |
| 6 | +/// Module for JSON commands - Array operations. |
| 7 | +/// </summary> |
| 8 | +public static partial class GlideJson |
| 9 | +{ |
| 10 | + #region JSON.ARRAPPEND |
| 11 | + |
| 12 | + /// <summary> |
| 13 | + /// Appends one or more values to the array at the specified path in the JSON document stored at the key. |
| 14 | + /// </summary> |
| 15 | + /// <param name="client">The Glide client to use for the command.</param> |
| 16 | + /// <param name="key">The key where the JSON document is stored.</param> |
| 17 | + /// <param name="path">The JSONPath or legacy path within the JSON document.</param> |
| 18 | + /// <param name="values">The JSON values to append to the array.</param> |
| 19 | + /// <returns> |
| 20 | + /// An array of new array lengths for each matching path. |
| 21 | + /// Elements are <see langword="null"/> for paths where the value is not an array. |
| 22 | + /// </returns> |
| 23 | + /// <exception cref="Exception">Thrown if the key does not exist.</exception> |
| 24 | + /// <seealso href="https://valkey.io/commands/json.arrappend/">Valkey commands – JSON.ARRAPPEND</seealso> |
| 25 | + /// <remarks> |
| 26 | + /// <example> |
| 27 | + /// <code> |
| 28 | + /// await GlideJson.SetAsync(client, "mykey", "$", "{\"arr\":[1,2],\"str\":\"hello\"}"); |
| 29 | + /// var lengths = await GlideJson.ArrAppendAsync(client, "mykey", "$.*", ["3"]); |
| 30 | + /// // lengths = [3, null] - arr now has 3 elements, str is not an array (null) |
| 31 | + /// </code> |
| 32 | + /// </example> |
| 33 | + /// </remarks> |
| 34 | + public static async Task<long?[]> ArrAppendAsync(BaseClient client, ValkeyKey key, ValkeyValue path, IEnumerable<ValkeyValue> values) |
| 35 | + { |
| 36 | + GlideString[] args = BuildArrAppendArgs(ToGlideString(key), ToGlideString(path), [.. values.Select(v => ToGlideString(v))]); |
| 37 | + object? result = await ExecuteCommandAsync(client, args); |
| 38 | + return ConvertToNullableLongArrayNonNull(result); |
| 39 | + } |
| 40 | + |
| 41 | + private static GlideString[] BuildArrAppendArgs(GlideString key, GlideString path, GlideString[] values) |
| 42 | + { |
| 43 | + List<GlideString> args = [JsonArrAppend, key, path]; |
| 44 | + args.AddRange(values); |
| 45 | + return [.. args]; |
| 46 | + } |
| 47 | + |
| 48 | + #endregion |
| 49 | + |
| 50 | + #region JSON.ARRINSERT |
| 51 | + |
| 52 | + /// <summary> |
| 53 | + /// Inserts one or more values into the array at the specified path and index in the JSON document stored at the key. |
| 54 | + /// </summary> |
| 55 | + /// <param name="client">The Glide client to use for the command.</param> |
| 56 | + /// <param name="key">The key where the JSON document is stored.</param> |
| 57 | + /// <param name="path">The JSONPath or legacy path within the JSON document.</param> |
| 58 | + /// <param name="index">The index before which to insert the values. Negative indices count from the end.</param> |
| 59 | + /// <param name="values">The JSON values to insert into the array.</param> |
| 60 | + /// <returns> |
| 61 | + /// An array of new array lengths for each matching path. |
| 62 | + /// Elements are <see langword="null"/> for paths where the value is not an array. |
| 63 | + /// </returns> |
| 64 | + /// <exception cref="Exception">Thrown if the key does not exist.</exception> |
| 65 | + /// <seealso href="https://valkey.io/commands/json.arrinsert/">Valkey commands – JSON.ARRINSERT</seealso> |
| 66 | + /// <remarks> |
| 67 | + /// <example> |
| 68 | + /// <code> |
| 69 | + /// await GlideJson.SetAsync(client, "mykey", "$", "{\"arr\":[1,3],\"str\":\"hello\"}"); |
| 70 | + /// var lengths = await GlideJson.ArrInsertAsync(client, "mykey", "$.*", 1, ["2"]); |
| 71 | + /// // lengths = [3, null] - arr now has 3 elements, str is not an array (null) |
| 72 | + /// </code> |
| 73 | + /// </example> |
| 74 | + /// </remarks> |
| 75 | + public static async Task<long?[]> ArrInsertAsync(BaseClient client, ValkeyKey key, ValkeyValue path, long index, IEnumerable<ValkeyValue> values) |
| 76 | + { |
| 77 | + GlideString[] args = BuildArrInsertArgs(ToGlideString(key), ToGlideString(path), index, [.. values.Select(v => ToGlideString(v))]); |
| 78 | + object? result = await ExecuteCommandAsync(client, args); |
| 79 | + return ConvertToNullableLongArrayNonNull(result); |
| 80 | + } |
| 81 | + |
| 82 | + private static GlideString[] BuildArrInsertArgs(GlideString key, GlideString path, long index, GlideString[] values) |
| 83 | + { |
| 84 | + List<GlideString> args = [JsonArrInsert, key, path, index.ToString()]; |
| 85 | + args.AddRange(values); |
| 86 | + return [.. args]; |
| 87 | + } |
| 88 | + |
| 89 | + #endregion |
| 90 | + |
| 91 | + #region JSON.ARRINDEX |
| 92 | + |
| 93 | + /// <summary> |
| 94 | + /// Searches for the first occurrence of a value in the array at the specified path. |
| 95 | + /// </summary> |
| 96 | + /// <param name="client">The Glide client to use for the command.</param> |
| 97 | + /// <param name="key">The key where the JSON document is stored.</param> |
| 98 | + /// <param name="path">The JSONPath or legacy path within the JSON document.</param> |
| 99 | + /// <param name="value">The JSON value to search for.</param> |
| 100 | + /// <returns> |
| 101 | + /// An array of indices for each matching path, or <see langword="null"/> if the key does not exist. |
| 102 | + /// Elements are -1 if not found, or <see langword="null"/> for paths where the value is not an array. |
| 103 | + /// </returns> |
| 104 | + /// <seealso href="https://valkey.io/commands/json.arrindex/">Valkey commands – JSON.ARRINDEX</seealso> |
| 105 | + /// <remarks> |
| 106 | + /// <example> |
| 107 | + /// <code> |
| 108 | + /// await GlideJson.SetAsync(client, "mykey", "$", "{\"arr\":[1,2,3],\"str\":\"hello\"}"); |
| 109 | + /// var indices = await GlideJson.ArrIndexAsync(client, "mykey", "$.*", "2"); |
| 110 | + /// // indices = [1, null] - found at index 1 in arr, str is not an array (null) |
| 111 | + /// |
| 112 | + /// var missing = await GlideJson.ArrIndexAsync(client, "nonexistent", "$.*", "2"); |
| 113 | + /// // missing = null - key doesn't exist |
| 114 | + /// </code> |
| 115 | + /// </example> |
| 116 | + /// </remarks> |
| 117 | + public static async Task<long?[]?> ArrIndexAsync(BaseClient client, ValkeyKey key, ValkeyValue path, ValkeyValue value) |
| 118 | + { |
| 119 | + GlideString[] args = [JsonArrIndex, ToGlideString(key), ToGlideString(path), ToGlideString(value)]; |
| 120 | + object? result = await ExecuteCommandAsync(client, args); |
| 121 | + return ConvertToNullableLongArray(result); |
| 122 | + } |
| 123 | + |
| 124 | + /// <summary> |
| 125 | + /// Searches for the first occurrence of a value in the array at the specified path with range options. |
| 126 | + /// </summary> |
| 127 | + /// <param name="client">The Glide client to use for the command.</param> |
| 128 | + /// <param name="key">The key where the JSON document is stored.</param> |
| 129 | + /// <param name="path">The JSONPath or legacy path within the JSON document.</param> |
| 130 | + /// <param name="value">The JSON value to search for.</param> |
| 131 | + /// <param name="range">Range options for the search.</param> |
| 132 | + /// <returns> |
| 133 | + /// An array of indices for each matching path, or <see langword="null"/> if the key does not exist. |
| 134 | + /// Elements are -1 if not found, or <see langword="null"/> for paths where the value is not an array. |
| 135 | + /// </returns> |
| 136 | + /// <seealso href="https://valkey.io/commands/json.arrindex/">Valkey commands – JSON.ARRINDEX</seealso> |
| 137 | + /// <remarks> |
| 138 | + /// <example> |
| 139 | + /// <code> |
| 140 | + /// await GlideJson.SetAsync(client, "mykey", "$", "{\"arr\":[1,2,3,2]}"); |
| 141 | + /// var range = GlideJson.ArrIndexRange.Between(2, 4); |
| 142 | + /// var indices = await GlideJson.ArrIndexAsync(client, "mykey", "$.arr", "2", range); // [3] |
| 143 | + /// </code> |
| 144 | + /// </example> |
| 145 | + /// </remarks> |
| 146 | + public static async Task<long?[]?> ArrIndexAsync(BaseClient client, ValkeyKey key, ValkeyValue path, ValkeyValue value, ArrIndexRange range) |
| 147 | + { |
| 148 | + GlideString[] args = BuildArrIndexArgs(ToGlideString(key), ToGlideString(path), ToGlideString(value), range); |
| 149 | + object? result = await ExecuteCommandAsync(client, args); |
| 150 | + return ConvertToNullableLongArray(result); |
| 151 | + } |
| 152 | + |
| 153 | + private static GlideString[] BuildArrIndexArgs(GlideString key, GlideString path, GlideString value, ArrIndexRange range) |
| 154 | + { |
| 155 | + List<GlideString> args = [JsonArrIndex, key, path, value]; |
| 156 | + args.AddRange(range.ToArgs()); |
| 157 | + return [.. args]; |
| 158 | + } |
| 159 | + |
| 160 | + #endregion |
| 161 | + |
| 162 | + #region JSON.ARRLEN |
| 163 | + |
| 164 | + /// <summary> |
| 165 | + /// Gets the length of the array at the specified path in the JSON document stored at the key. |
| 166 | + /// </summary> |
| 167 | + /// <param name="client">The Glide client to use for the command.</param> |
| 168 | + /// <param name="key">The key where the JSON document is stored.</param> |
| 169 | + /// <param name="path">The JSONPath or legacy path within the JSON document.</param> |
| 170 | + /// <returns> |
| 171 | + /// An array of lengths for each matching path, or <see langword="null"/> if the key does not exist. |
| 172 | + /// Elements are <see langword="null"/> for paths where the value is not an array. |
| 173 | + /// </returns> |
| 174 | + /// <seealso href="https://valkey.io/commands/json.arrlen/">Valkey commands – JSON.ARRLEN</seealso> |
| 175 | + /// <remarks> |
| 176 | + /// <example> |
| 177 | + /// <code> |
| 178 | + /// await GlideJson.SetAsync(client, "mykey", "$", "{\"arr\":[1,2,3],\"str\":\"hello\"}"); |
| 179 | + /// var lengths = await GlideJson.ArrLenAsync(client, "mykey", "$.*"); |
| 180 | + /// // lengths = [3, null] - arr has 3 elements, str is not an array (null) |
| 181 | + /// |
| 182 | + /// var missing = await GlideJson.ArrLenAsync(client, "nonexistent", "$.*"); |
| 183 | + /// // missing = null - key doesn't exist |
| 184 | + /// </code> |
| 185 | + /// </example> |
| 186 | + /// </remarks> |
| 187 | + public static async Task<long?[]?> ArrLenAsync(BaseClient client, ValkeyKey key, ValkeyValue path) |
| 188 | + { |
| 189 | + GlideString[] args = [JsonArrLen, ToGlideString(key), ToGlideString(path)]; |
| 190 | + object? result = await ExecuteCommandAsync(client, args); |
| 191 | + return ConvertToNullableLongArray(result); |
| 192 | + } |
| 193 | + |
| 194 | + /// <summary> |
| 195 | + /// Gets the length of the array at the root path in the JSON document stored at the key. |
| 196 | + /// </summary> |
| 197 | + /// <param name="client">The Glide client to use for the command.</param> |
| 198 | + /// <param name="key">The key where the JSON document is stored.</param> |
| 199 | + /// <returns>The array length at the root path, or <see langword="null"/> if the key does not exist or root is not an array.</returns> |
| 200 | + /// <seealso href="https://valkey.io/commands/json.arrlen/">Valkey commands – JSON.ARRLEN</seealso> |
| 201 | + /// <remarks> |
| 202 | + /// <example> |
| 203 | + /// <code> |
| 204 | + /// await GlideJson.SetAsync(client, "mykey", "$", "[1,2,3]"); |
| 205 | + /// var length = await GlideJson.ArrLenAsync(client, "mykey"); // 3 |
| 206 | + /// </code> |
| 207 | + /// </example> |
| 208 | + /// </remarks> |
| 209 | + public static async Task<long?> ArrLenAsync(BaseClient client, ValkeyKey key) |
| 210 | + { |
| 211 | + GlideString[] args = [JsonArrLen, ToGlideString(key)]; |
| 212 | + object? result = await ExecuteCommandAsync(client, args); |
| 213 | + return result is null ? null : (long)result; |
| 214 | + } |
| 215 | + |
| 216 | + #endregion |
| 217 | + |
| 218 | + #region JSON.ARRPOP |
| 219 | + |
| 220 | + /// <summary> |
| 221 | + /// Pops an element from the array at the specified path and index in the JSON document stored at the key. |
| 222 | + /// </summary> |
| 223 | + /// <param name="client">The Glide client to use for the command.</param> |
| 224 | + /// <param name="key">The key where the JSON document is stored.</param> |
| 225 | + /// <param name="path">The JSONPath or legacy path within the JSON document.</param> |
| 226 | + /// <param name="index">The index of the element to pop. Negative indices count from the end. Default is -1 (last element).</param> |
| 227 | + /// <returns> |
| 228 | + /// An array of popped elements (as JSON strings) for each matching path. Returns <see langword="null"/> for non-array/empty matches. |
| 229 | + /// </returns> |
| 230 | + /// <seealso href="https://valkey.io/commands/json.arrpop/">Valkey commands – JSON.ARRPOP</seealso> |
| 231 | + /// <remarks> |
| 232 | + /// <example> |
| 233 | + /// <code> |
| 234 | + /// await GlideJson.SetAsync(client, "mykey", "$", "{\"arr\":[1,2,3]}"); |
| 235 | + /// var popped = await GlideJson.ArrPopAsync(client, "mykey", "$.arr", -1); // ["3"] |
| 236 | + /// </code> |
| 237 | + /// </example> |
| 238 | + /// </remarks> |
| 239 | + public static async Task<ValkeyValue?[]?> ArrPopAsync(BaseClient client, ValkeyKey key, ValkeyValue path, long index = -1) |
| 240 | + { |
| 241 | + GlideString[] args = [JsonArrPop, ToGlideString(key), ToGlideString(path), index.ToString()]; |
| 242 | + object? result = await ExecuteCommandAsync(client, args); |
| 243 | + return ConvertToNullableValkeyValueArray(result); |
| 244 | + } |
| 245 | + |
| 246 | + private static ValkeyValue?[]? ConvertToNullableValkeyValueArray(object? result) |
| 247 | + { |
| 248 | + if (result is null) |
| 249 | + return null; |
| 250 | + if (result is object?[] arr) |
| 251 | + return [.. arr.Select(o => o is null ? (ValkeyValue?)null : ToValkeyValue(o))]; |
| 252 | + // Single value (legacy path) - wrap in array for consistent return type |
| 253 | + return [ToValkeyValue(result)]; |
| 254 | + } |
| 255 | + |
| 256 | + /// <summary> |
| 257 | + /// Pops the last element from the array at the root path in the JSON document stored at the key. |
| 258 | + /// </summary> |
| 259 | + /// <param name="client">The Glide client to use for the command.</param> |
| 260 | + /// <param name="key">The key where the JSON document is stored.</param> |
| 261 | + /// <returns>The popped element as a JSON string, or <see cref="ValkeyValue.Null"/> if the array is empty or key does not exist.</returns> |
| 262 | + /// <seealso href="https://valkey.io/commands/json.arrpop/">Valkey commands – JSON.ARRPOP</seealso> |
| 263 | + /// <remarks> |
| 264 | + /// <example> |
| 265 | + /// <code> |
| 266 | + /// await GlideJson.SetAsync(client, "mykey", "$", "[1,2,3]"); |
| 267 | + /// var popped = await GlideJson.ArrPopAsync(client, "mykey"); // "3" |
| 268 | + /// </code> |
| 269 | + /// </example> |
| 270 | + /// </remarks> |
| 271 | + public static async Task<ValkeyValue> ArrPopAsync(BaseClient client, ValkeyKey key) |
| 272 | + { |
| 273 | + GlideString[] args = [JsonArrPop, ToGlideString(key)]; |
| 274 | + object? result = await ExecuteCommandAsync(client, args); |
| 275 | + return ToValkeyValue(result); |
| 276 | + } |
| 277 | + |
| 278 | + #endregion |
| 279 | + |
| 280 | + #region JSON.ARRTRIM |
| 281 | + |
| 282 | + /// <summary> |
| 283 | + /// Trims the array at the specified path to contain only elements within the specified range. |
| 284 | + /// </summary> |
| 285 | + /// <param name="client">The Glide client to use for the command.</param> |
| 286 | + /// <param name="key">The key where the JSON document is stored.</param> |
| 287 | + /// <param name="path">The JSONPath or legacy path within the JSON document.</param> |
| 288 | + /// <param name="start">The start index (inclusive).</param> |
| 289 | + /// <param name="end">The end index (inclusive). Negative indices count from the end.</param> |
| 290 | + /// <returns> |
| 291 | + /// An array of new array lengths for each matching path. |
| 292 | + /// Elements are <see langword="null"/> for paths where the value is not an array. |
| 293 | + /// </returns> |
| 294 | + /// <exception cref="Exception">Thrown if the key does not exist.</exception> |
| 295 | + /// <seealso href="https://valkey.io/commands/json.arrtrim/">Valkey commands – JSON.ARRTRIM</seealso> |
| 296 | + /// <remarks> |
| 297 | + /// <example> |
| 298 | + /// <code> |
| 299 | + /// await GlideJson.SetAsync(client, "mykey", "$", "{\"arr\":[1,2,3,4,5],\"str\":\"hello\"}"); |
| 300 | + /// var lengths = await GlideJson.ArrTrimAsync(client, "mykey", "$.*", 1, 3); |
| 301 | + /// // lengths = [3, null] - arr now has 3 elements [2,3,4], str is not an array (null) |
| 302 | + /// </code> |
| 303 | + /// </example> |
| 304 | + /// </remarks> |
| 305 | + public static async Task<long?[]> ArrTrimAsync(BaseClient client, ValkeyKey key, ValkeyValue path, long start, long end) |
| 306 | + { |
| 307 | + GlideString[] args = [JsonArrTrim, ToGlideString(key), ToGlideString(path), start.ToString(), end.ToString()]; |
| 308 | + object? result = await ExecuteCommandAsync(client, args); |
| 309 | + return ConvertToNullableLongArrayNonNull(result); |
| 310 | + } |
| 311 | + |
| 312 | + #endregion |
| 313 | +} |
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