From f1f89a745fb46c4b387f3cb6c094e9dd38edf9f6 Mon Sep 17 00:00:00 2001
From: Federico Angelilli <code@fedang.net>
Date: Sun, 8 Sep 2024 22:41:53 +0200
Subject: Add date block

---
 src/blocks/date.c   | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/blocks/fs.c     |  2 --
 src/blocks/ram.c    |  8 +++-----
 src/blocks/scheme.c |  2 ++
 4 files changed, 58 insertions(+), 7 deletions(-)
 create mode 100644 src/blocks/date.c

(limited to 'src/blocks')

diff --git a/src/blocks/date.c b/src/blocks/date.c
new file mode 100644
index 0000000..01c62c3
--- /dev/null
+++ b/src/blocks/date.c
@@ -0,0 +1,53 @@
+#include <string.h>
+#include <assert.h>
+#include <time.h>
+
+#include "scheme.h"
+
+#include "../any_log.h"
+
+static void block_date_update(block_t *block)
+{
+    time_t epoch = time(NULL);
+    struct tm *loc_time = localtime(&epoch);
+
+    char buffer[64];
+    strftime(buffer, sizeof(buffer), block->state, loc_time);
+
+    free(block->text.text);
+    block->text.text = strcopy(buffer);
+    assert(block->text.text != NULL);
+}
+
+static void block_date_finalize(block_t *block)
+{
+    free(block->state);
+}
+
+static bool block_date_validate(block_t *block, const block_scheme_t *scheme)
+{
+    if (block->text.text == NULL) {
+        log_error("Block '%s' requires key '%s'", block->label, "text");
+        return false;
+    }
+
+    block->state = block->text.text;
+    block->text.text = NULL;
+    return true;
+}
+
+const block_scheme_t block_date_scheme = {
+    .name = "date",
+    .block = {
+        .type = BLOCK_TEXT,
+        .update_interval = {
+            .tv_sec = 1,
+            .tv_nsec = 0,
+        },
+        .update_cb = block_date_update,
+        .finalize_cb = block_date_finalize,
+    },
+    .size = sizeof(char *),
+    .entries = NULL,
+    .validate = block_date_validate,
+};
diff --git a/src/blocks/fs.c b/src/blocks/fs.c
index a47eb9c..1a4a178 100644
--- a/src/blocks/fs.c
+++ b/src/blocks/fs.c
@@ -96,5 +96,3 @@ const block_scheme_t block_fs_scheme = {
     .entries = block_fs_entries,
     .validate = block_fs_validate,
 };
-
-
diff --git a/src/blocks/ram.c b/src/blocks/ram.c
index c6ed727..5a95013 100644
--- a/src/blocks/ram.c
+++ b/src/blocks/ram.c
@@ -64,10 +64,7 @@ static bool block_ram_validate(block_t *block, const block_scheme_t *scheme)
         return false;
     }
 
-    block->state = block->text.text;
-    block->text.text = NULL;
-
-    if (strstr(block->state, "%{") == NULL) {
+    if (strstr(block->text.text, "%{") == NULL) {
         log_warn("Block '%s' does not use any ram variable", block->label);
 
         block->update_cb = NULL;
@@ -75,6 +72,8 @@ static bool block_ram_validate(block_t *block, const block_scheme_t *scheme)
         return true;
     }
 
+    block->state = block->text.text;
+    block->text.text = NULL;
     return true;
 }
 
@@ -93,4 +92,3 @@ const block_scheme_t block_ram_scheme = {
     .entries = NULL,
     .validate = block_ram_validate,
 };
-
diff --git a/src/blocks/scheme.c b/src/blocks/scheme.c
index a17ef3a..75519fc 100644
--- a/src/blocks/scheme.c
+++ b/src/blocks/scheme.c
@@ -4,11 +4,13 @@ extern const block_scheme_t block_text_scheme;
 extern const block_scheme_t block_group_scheme;
 extern const block_scheme_t block_ram_scheme;
 extern const block_scheme_t block_fs_scheme;
+extern const block_scheme_t block_date_scheme;
 
 const block_scheme_t *block_schemes[] = {
     &block_text_scheme,
     &block_group_scheme,
     &block_ram_scheme,
     &block_fs_scheme,
+    &block_date_scheme,
     NULL,
 };
-- 
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