1 files changed, 64 insertions, 0 deletions
diff --git a/src/text/action.c b/src/text/action.c
new file mode 100644
index 0000000..3d63bce
--- /dev/null
+++ b/src/text/action.c
@@ -0,0 +1,64 @@
+#include <stdio.h> // fgets()
+#include <stdlib.h> // atoi()
+#include "../libsok/sok.h"
+#include "action.h"
+
+#define CASE_DIGIT \
+  case '0': \
+  case '1': \
+  case '2': \
+  case '3': \
+  case '4': \
+  case '5': \
+  case '6': \
+  case '7': \
+  case '8': \
+  case '9':
+
+static const sok_dir_t
+key_to_dir(const char c) {
+  switch (c) {
+  case 'k': return SOK_DIR_UP;
+  case 'h': return SOK_DIR_LEFT;
+  case 'j': return SOK_DIR_DOWN;
+  case 'l': return SOK_DIR_RIGHT;
+  default:  return SOK_DIR_LAST;
+  }
+}
+
+action_t
+get_action(void) {
+  char buf[128];
+
+  // read input, check for error
+  if (!fgets(buf, sizeof(buf), stdin)) {
+    return (action_t) { .type = ACTION_QUIT };
+  }
+
+  switch (buf[0]) {
+  case EOF:
+  case 'q':
+    return (action_t) { .type = ACTION_QUIT };
+  case 'h':
+  case 'j':
+  case 'k':
+  case 'l':
+    return (action_t) {
+      .type = ACTION_MOVE,
+      .data = key_to_dir(buf[0])
+    };
+  case 'u':
+    return (action_t) { .type = ACTION_UNDO };
+  case 'n':
+    return (action_t) { .type = ACTION_NEXT };
+  CASE_DIGIT
+    return (action_t) {
+      .type = ACTION_WARP,
+      .data = atoi(buf),
+    };
+  case 's':
+    return (action_t) { .type = ACTION_SOLVE };
+  default:
+    return (action_t) { .type = ACTION_NONE };
+  }
+}