Basic UI with commands

ncac.c

@@ -1,39 +1,80 @@
 #include "ncac.h"
 
 #include <curses.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <term.h>
 
 #include "asana/asana.h"
 #include "asana/fetch.h"
 #include "ui/base.h"
+#include "ui/commands.h"
+#include "ui/model.h"
+
+void append_to_buffer(ui_state *state, char c) {
+  if (state->buffer_size < UI_INPUT_BUFFER_SIZE - 1) {
+    state->input_buffer[state->buffer_size++] = c;
+    state->input_buffer[state->buffer_size] = '\0';
+  }
+}
+
+bool handle_command(ui_state *state) {
+  for (size_t i = 0; i < UI_NUM_COMMANDS; i++) {
+    if (strncmp(state->input_buffer, ui_commands[i].command,
+                UI_INPUT_BUFFER_SIZE) == 0) {
+      return ui_commands[i].handler(state);
+    }
+  }
+
+  state->curs_y = 0;
+  state->curs_x = 0;
+
+  draw_text("Unknown command. Type \":help\" for a list of commands", state);
+
+  return false;
+}
 
 int main(/*int argc, char **argv*/) {
   setup();
 
-  int curs_x = 0;
-  int curs_y = 0;
+  int input;
 
-  char input;
+  ui_state state;
+  state.mode = 0;
+  state.buffer_size = 0;
+  state.input_buffer[0] = '\0';
+
+  while (true) {
+    draw_status_line(&state);
 
-  while (1) {
     switch (input = getch()) {
-      case 'a':
-        draw_text("Hello, world!", &curs_x, &curs_y);
-        break;
-      case 'b':
-        draw_text("Goodbye, world!", &curs_x, &curs_y);
-        break;
-      case 'j':
-        get_me(&curs_x, &curs_y);
-        break;
-      case 'm':
-        get_my_tasks(&curs_x, &curs_y);
-        break;
-      case 'q':
-        finish(SIGTERM);
-        break;
+    case '\r':
+      if (state.mode == COMMAND) {
+        state.mode = NORMAL;
+        if (handle_command(&state)) {
+          finish(SIGTERM);
+        }
+      } else if (state.mode == NORMAL) {
+        state.curs_y++;
+      }
+      break;
+    case KEY_EXIT:
+      state.mode = NORMAL;
+      break;
+    case ':':
+      if (state.mode == NORMAL) {
+        state.mode = COMMAND;
+        state.buffer_size = 0;
+        state.input_buffer[0] = '\0';
+      } else {
+        append_to_buffer(&state, input);
+      }
+      break;
+    default:
+      append_to_buffer(&state, input);
+      break;
     }
   }
   return 0;
@@ -71,6 +112,8 @@ static void setup() {
   }
   noecho();
   nonl();
+  intrflush(stdscr, FALSE);
+  keypad(stdscr, TRUE);
 
   // install handlers
   signal(SIGINT, &finish);
@@ -95,7 +138,7 @@ void get_me(int *curs_x, int *curs_y) {
 
   *curs_x = 0;
   (*curs_y)++;
-  draw_text(gid, curs_x, curs_y);
+  // draw_text(gid, curs_x, curs_y);
 }
 
 void get_my_tasks(int *curs_x, int *curs_y) {
@@ -124,12 +167,12 @@ void get_my_tasks(int *curs_x, int *curs_y) {
   *curs_x = 0;
   *curs_y = 0;
 
-  draw_text("My Tasks", curs_x, curs_y);
+  // draw_text("My Tasks", curs_x, curs_y);
   *curs_x = 0;
   (*curs_y)+=2;
 
   for (size_t i=0; i<my_tasks.tasks_len;i++) {
-    draw_text(my_tasks.tasks[i].name, curs_x, curs_y);
+    // draw_text(my_tasks.tasks[i].name, curs_x, curs_y);
     *curs_x = 0;
     (*curs_y)++;
   }