1 files changed, 57 insertions, 0 deletions

diff --git a/src/blocks/group.c b/src/blocks/group.c
index eeac132..da9e6d6 100644
--- a/src/blocks/group.c
+++ b/src/blocks/group.c
@@ -1,3 +1,5 @@
+#include <assert.h>
+
 #include "../block.h"
 #include "../any_log.h"
 
@@ -12,6 +14,60 @@ static void block_group_clean(block_t *block)
     free(group->children);
 }
 
+static bool block_group_resolve(block_t *block, config_t *config)
+{
+    block_group_t *group = (block_group_t *)block;
+    assert(block->type == BLOCK_GROUP);
+
+    char **children = (char **)group->children;
+    group->children = NULL;
+    group->n_children = 0;
+
+    if (children == NULL)
+        return true;
+
+    while (children[group->n_children] != NULL)
+        group->n_children++;
+
+    group->children = malloc(group->n_children * sizeof(block_t *));
+    bool result = true;
+
+    for (size_t i = 0; i < group->n_children; i++) {
+        for (size_t j = 0; j < config->n_blocks; j++) {
+            if (config->blocks[j] == block)
+                continue;
+
+            if (!strcmp(children[i], config->blocks[j]->label)) {
+                if (config->blocks[j]->grouped) {
+                    log_error("Block '%s' can only be in one group", children[i]);
+                    result = false;
+                    goto end;
+                }
+
+                log_debug("Block '%s' is parent of '%s'", block->label, children[i]);
+                group->children[i] = config->blocks[j];
+                group->children[i]->grouped = true;
+
+                if (!block_resolve(group->children[i], config)) {
+                    result = false;
+                    goto end;
+                }
+
+                goto next;
+            }
+        }
+
+        log_error("Block '%s' not found (referenced by '%s')", children[i], block->label);
+        result = false;
+        goto end;
+next:
+    }
+
+end:
+    strfreelist(children);
+    return result;
+}
+
 static config_status_t block_group_change(block_t *block, config_t *config, const char *key, const char *value)
 {
     if (!strcmp(key, "blocks")) {
@@ -30,5 +86,6 @@ const block_scheme_t block_group_scheme = {
     .init_fn = block_group_init,
     .clean_fn = block_group_clean,
     .validate_fn = NULL,
+    .resolve_fn = block_group_resolve,
     .change_fn = block_group_change,
 };