From 8500cddbf3a99778be7d73be187fbb83dc31bd38 Mon Sep 17 00:00:00 2001
From: Adrien Bourmault <neox@os-k.eu>
Date: Thu, 5 Aug 2021 15:14:59 +0200
Subject: [PATCH] New monitor layout

---
 include/cmds.h |  3 ++-
 src/cli.c      | 64 +++++++++++++++++++++++++++++++++-----------------
 src/cmds.c     |  7 ++++++
 3 files changed, 51 insertions(+), 23 deletions(-)

diff --git a/include/cmds.h b/include/cmds.h
index 57d8db5..910254a 100644
--- a/include/cmds.h
+++ b/include/cmds.h
@@ -26,6 +26,7 @@
 //char *CmdHelp(char **, Server_t *);
 char *CmdModel(char*, char**, Server_t*);
 char *CmdShutdown(char*, char**, Server_t*);
+char *CmdHelp(char*, char**, Server_t*);
 
 struct {
     const char *name;
@@ -35,7 +36,7 @@ struct {
 
 Command_t cmdList[] =
 {
-    //{"help", CmdHelp, "Help command"},
+    {"help", CmdHelp, "Help command"},
     {"model", CmdModel, "Model command"},
     {"shutdown", CmdShutdown, "Shutdown command"},
 };
diff --git a/src/cli.c b/src/cli.c
index bb60885..860fc42 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -126,35 +126,58 @@ static inline int getch(bool nonBlocking)
     return buf;
  }
 
- //
- // Get the screen size
- //
- void getScreenSize(int signum)
+//
+// Get the screen size
+//
+void getScreenSize(int signum)
 {
     // Get current terminal size
     ioctl(STDOUT_FILENO, TIOCGWINSZ, &terminalSize);
 }
 
- //
- // Print monitor screen
- //
- void decorateMonitor(int signum)
+//
+// Set cursor location
+//
+void setCursorLocation(char x, char y)
+{
+    printf("\x1b[%d;%dH", y, x);
+}
+
+//
+// Print monitor screen
+//
+void decorateMonitor(int signum)
 {
     getScreenSize(signum);
 
-    printf(C_CLEARSCREEN "\n");
-    fflush(stdout);
+    printf(C_CLEARSCREEN);
 
-    for (int i = 0;
-         i < (terminalSize.ws_row * terminalSize.ws_col);
-         i++) {
-        if ((i < terminalSize.ws_col) ||
-            (i > terminalSize.ws_row * (terminalSize.ws_col - 1)))
-            printf(C_COLOR_REVERSE " " C_COLOR_NORMAL);
-        else
-            printf(C_COLOR_NORMAL " " C_COLOR_NORMAL);
+    setCursorLocation(1,1);
+
+    printf("%sMONITOR",
+        C_COLOR_GREEN C_COLOR_REVERSE
+        );
+
+    for (int i = 0; i < terminalSize.ws_col - sizeof("MONITOR") + 1; i++) {
+        printf(" ");
+    }
+    printf(C_COLOR_NORMAL);
+
+    setCursorLocation(1,terminalSize.ws_row - 1);
+    printf("%s",
+        C_COLOR_GREEN C_COLOR_REVERSE
+        );
+    for (int i = 0; i < terminalSize.ws_col; i++) {
+        printf(" ");
     }
 
+    printf("%sQ%s Quit\t%sS%s Start/Stop",
+           C_COLOR_NORMAL C_COLOR_REVERSE,
+           C_COLOR_NORMAL,
+           C_COLOR_REVERSE,
+           C_COLOR_NORMAL);
+
+    setCursorLocation(1, 2);
     fflush(stdout);
 }
 
@@ -182,10 +205,6 @@ int connectedMonitor(int sockfd)
         // Read command from terminal
         curChar = getch(NON_BLOCKING);
 
-        if (curChar > 0) {
-            printLog("Char detected : %d\n", curChar);
-        }
-
         switch (curChar) {
         case 'q':
             pleaseStop = true;
@@ -212,6 +231,7 @@ int connectedMonitor(int sockfd)
         /*     // Invalid command */
         /* } */
     }
+    printf(C_CLEARSCREEN);
     printf("%sEnd of monitoring session\n\e[0m", C_COLOR_YELLOW);
 
     return 0;
diff --git a/src/cmds.c b/src/cmds.c
index 22e2bd3..b2d82cd 100644
--- a/src/cmds.c
+++ b/src/cmds.c
@@ -187,3 +187,10 @@ char *CmdShutdown(char *buf, char **argv, Server_t *args)
 
     return buf;
 }
+
+char *CmdHelp(char *buf, char **argv, Server_t *args)
+{
+    strcat(buf, "List of known commands:\n");
+
+    return buf;
+}