From 838b1269ac2eba5110dece8c17b468343a4f73ee Mon Sep 17 00:00:00 2001
From: bigfoot547 <bigfoot@figboot.dev>
Date: Tue, 26 Dec 2023 04:53:54 -0600
Subject: implement remaining commands (but badly)

TODO: refactor and sanitize inputs more
---
 src/cmd-instance.c | 82 ++++++++++++++++++++++++++++++++++++++++++++++++++++--
 src/instance.c     | 10 +++++++
 src/instance.h     |  1 +
 3 files changed, 91 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/cmd-instance.c b/src/cmd-instance.c
index e187b7d..6982eb3 100644
--- a/src/cmd-instance.c
+++ b/src/cmd-instance.c
@@ -210,7 +210,7 @@ unsigned cmd_instance_remove(struct l2_context_node *ctx, char **args)
   char *removepath = NULL;
 
   for (char **cur = args; *cur; ++cur) {
-    if (!strcmp("--remove", *cur)) {
+    if (!strcmp("--delete", *cur)) {
       flag_remove = true;
     } else if (!strcmp("--id", *cur)) {
       flag_byid = true;
@@ -317,10 +317,88 @@ cleanup:
 
 unsigned cmd_instance_list(struct l2_context_node *ctx, char **args)
 {
-return CMD_RESULT_SUCCESS;
+  L2_UNUSED(ctx);
+
+  if (*args) {
+    fprintf(stderr, "fatal: Unknown argument '%s'.\n", *args);
+    return CMD_RESULT_FAIL;
+  }
+
+  int res = l2_instance_load_all();
+
+  if (res != INSTANCE_SUCCESS) {
+    fprintf(stderr, "fatal: Failed to load instances. (%d)\n", res);
+    return CMD_RESULT_FAIL;
+  }
+
+  if (l2_state.instance_head) {
+    char idstr[UUID_STRLEN + 1];
+    for (struct l2_instance *inst = l2_state.instance_head; inst; inst = inst->next) {
+      l2_uuid_to_string(&inst->uuid, idstr);
+      printf("- %s (%s) at '%s'\n", inst->name, idstr, inst->path);
+    }
+  } else {
+    fputs("There are no instances.\n", stderr);
+  }
+
+  return CMD_RESULT_SUCCESS;
 }
 
 unsigned cmd_instance_rename(struct l2_context_node *ctx, char **args)
 {
+  int res;
+  char *oldname = NULL;
+  char *newname = NULL;
+  struct l2_instance *to_rename = NULL;
+
+  if (*args) {
+    fprintf(stderr, "fatal: Unknown argument '%s'.\n", *args);
+    return CMD_RESULT_FAIL;
+  }
+
+  res = l2_instance_load_all();
+
+  if (res != INSTANCE_SUCCESS) {
+    fprintf(stderr, "fatal: Failed to load instances. (%d)\n", res);
+    return CMD_RESULT_FAIL;
+  }
+
+  for (struct l2_context_node *cur = ctx; cur; cur = cur->next) {
+    if (!strcmp("oldname", cur->node->name)) {
+      oldname = cur->value;
+    } else if (!strcmp("newname", cur->node->name)) {
+      newname = cur->value;
+    }
+  }
+
+  if (!(oldname && newname)) { /* TODO: sanitize newname like in "instance add" */
+    fputs("fatal: Invalid usage.\n", stderr);
+    return CMD_RESULT_FAIL;
+  }
+
+  for (struct l2_instance *cur = l2_state.instance_head; cur; cur = cur->next) {
+    if (!strcmp(cur->name, oldname)) {
+      to_rename = cur;
+    } else if (!strcmp(cur->name, newname)) {
+      fprintf(stderr, "fatal: An instance by the name '%s' already exists.\n", newname);
+      return CMD_RESULT_FAIL;
+    }
+  }
+
+  if (!to_rename) {
+    fprintf(stderr, "fatal: No instance found by the name '%s'.\n", oldname);
+    return CMD_RESULT_FAIL;
+  }
+
+  if ((res = l2_instance_rename_instance(to_rename, newname)) != INSTANCE_SUCCESS) {
+    fprintf(stderr, "fatal: Failed to rename the instance. (%d)\n", res);
+    return CMD_RESULT_FAIL;
+  }
+
+  if ((res = l2_instance_save_all()) != INSTANCE_SUCCESS) {
+    fprintf(stderr, "fatal: Failed to save instances. (%d)\n", res);
+    return CMD_RESULT_FAIL;
+  }
+
   return CMD_RESULT_SUCCESS;
 }
diff --git a/src/instance.c b/src/instance.c
index 148f71d..ca80a45 100644
--- a/src/instance.c
+++ b/src/instance.c
@@ -123,6 +123,16 @@ int l2_instance_del_instance(struct l2_instance *inst)
   return INSTANCE_SUCCESS;
 }
 
+int l2_instance_rename_instance(struct l2_instance *inst, const char *newname)
+{
+  char *nn = strdup(newname);
+  if (!nn) return INSTANCE_ERRNO;
+
+  free((char *)inst->name);
+  inst->name = nn;
+  return INSTANCE_SUCCESS;
+}
+
 /* internal utilities */
 
 int l2_instance__load_all_from_object(json_t *obj)
diff --git a/src/instance.h b/src/instance.h
index e7e5943..1e60df8 100644
--- a/src/instance.h
+++ b/src/instance.h
@@ -26,5 +26,6 @@ int l2_instance_save_all(void);
 
 int l2_instance_add_instance(const struct l2_instance *inst);
 int l2_instance_del_instance(struct l2_instance *inst);
+int l2_instance_rename_instance(struct l2_instance *inst, const char *newname);
 
 #endif /* include guard */
-- 
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