updated to accept only .tar.zstd uploads

ParadoxSaveParser.WebAPI/README.md

@@ -5,30 +5,50 @@ Simple web application created using DTLib.Web.
 ## Important
 Restart web application once per day to delete outdated data and clean RAM.
 
+## Config
+`SaveUpload` section of `config.json`:
+- `MaxSizeCompressedBytes` - max size of uploaded `.tar.zst` (default 60 MiB)
+- `MaxSizePlainTextBytes` - max size of the game data entry after decompression (default 200 MiB)
+
 ## Routes
 ### POST `/uploadSave`
 - **Query Params:**
   - `game` - short name of the game (see [../README.md](../README.md))
-- **Request Body:** `application/octet-stream` - .eu4 file
+  - `originalFileType` - `text` | `zip`
+  - `originalFileName` - name of the original save file (max 255 characters)
+- **Request Body:** `application/zstd` - single zstd frame containing a tar with files of the original save.
+  Game data is read from the entry named in [GameSaveEntryNames](./Game.cs) (`gamestate` for EU4).
+  A plain text save is a tar with just that one entry.
+  The blob is stored byte-for-byte and can be downloaded with `/getSaveFile`.
 - **Response:**
     ```json
-    { "saveId": "string" }
+    { "id": "string" }
     ```
-    or `{ "errorMessage": "string" }`
+    or `{ "errorMessage": "string" }` 
+    (status 413 if upload or uncompressed game data exceeds the limits from config)
 
 ### GET `/getSaveStatus`
 - **Query Params:**
     - `id` - id of uploaded save file
-- **Response:** [SaveFileMetadata](./SaveFileMetadata.cs)
+- **Response:** [SaveFileMetadata](./Database/SaveFileMetadata.cs)
     ```json
     {
         "id": "string",
         "game": "string",
-        "status": "string",
+        "status": "initialized | uploaded | parsing | saving_results | done | error",
+        "uploadDateTime": "string",
+        "originalFileType": "text | zip",
+        "originalFileName": "string",
         "errorMessage": "string?"
     }
     ```
 
+### GET `/getSaveFile`
+- **Query Params:**
+    - `id` - id of uploaded save file
+- **Response:** `application/zstd` - uploaded blob, unchanged
+    or `{ "errorMessage": "string" }`
+
 ### GET `/getSaveData`
 - **Query Params:**
     - `id` - id of uploaded save file