From d2867e2d990e0abdb6883d1303fe66c7f1a846c0 Mon Sep 17 00:00:00 2001
From: Masahiko AMANO <hiko-19@ya.ru>
Date: Fri, 17 Feb 2023 23:56:56 +0300
Subject: [PATCH] feat(dbms): add help message to CLI client

---
 tdbms/cli/tdbms-cli.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/tdbms/cli/tdbms-cli.c b/tdbms/cli/tdbms-cli.c
index d28e9fc..7f419f9 100644
--- a/tdbms/cli/tdbms-cli.c
+++ b/tdbms/cli/tdbms-cli.c
@@ -1,9 +1,42 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "../../include/tdbms-client.h"
 
 int main(int argc, char **argv) {
+    if (argc == 1 || strcmp(argv[1], "-h") == 0) {
+        printf("Tanabata Database Management client\n\n"
+               "Usage\n"
+               "  tdb [DB_NAME [REQUEST_CODE [REQUEST_BODY]]]\n\n"
+               "Request codes:\n"
+               "  0\tDB       stats\n"
+               "  3\tDB       init\n"
+               "  2\tDB       load\n"
+               "  4\tDB       save\n"
+               "  6\tDB       edit\n"
+               "  1\tDB       remove soft\n"
+               "  5\tDB       remove hard\n"
+               "  7\tDB       weed\n"
+               " 16\tSasa     get\n"
+               " 40\tSasa     get by tanzaku\n"
+               " 18\tSasa     add\n"
+               " 20\tSasa     update\n"
+               " 17\tSasa     remove\n"
+               " 32\tTanzaku  get\n"
+               " 24\tTanzaku  get by sasa\n"
+               " 34\tTanzaku  add\n"
+               " 36\tTanzaku  update\n"
+               " 33\tTanzaku  remove\n"
+               "  8\tKazari   get\n"
+               " 10\tKazari   add\n"
+               " 26\tKazari   add single sasa to multiple tanzaku\n"
+               " 42\tKazari   add single tanzaku to multiple sasa\n"
+               "  9\tKazari   remove\n"
+               " 25\tKazari   remove single sasa to multiple tanzaku\n"
+               " 41\tKazari   remove single tanzaku to multiple sasa\n");
+        return 0;
+    }
     char *db_name, request_code, *request_body;
     if (argc < 4) {
         request_body = "";