initial release

2021-08-04 12:24:08 +02:00
parent fe267a81e2
commit bb9da629fb
12 changed files with 883 additions and 0 deletions
--- a/homeassistant.c
+++ b/homeassistant.c
@ -0,0 +1,112 @@
+#include "homeassistant.h"
+#include "mqtt.h"
+#include "logger.h"
+
+#include <json-c/json.h>
+
+#include <stddef.h>
+#include <stdio.h>
+
+
+typedef struct {
+    const char *tag;            // TIC Tag
+    const char *state_class;    // HA State Class
+    const char *device_class;   // HA Device Class
+    const char *name;           // HA name
+    const char *unit;           // HA unit
+    const bool last_reset;      // HA LastReset present
+    const char *value_template; // HA Template for value
+} ha_config_desc;
+
+
+static ha_config_desc ha_config_descs[] = {
+  { "PAPP",  "measurement", "power",   "Puissance Apparente",    "VA", },
+  { "IINST", "measurement", "current", "Intensité Instantanée",  "A", },
+  { "HCHP",  "measurement", "energy",  "Energie Heures Pleines", "kWh", true, "{{ (value | float) / 1000 }}" },
+  { "HCHC",  "measurement", "energy",  "Energie Heures Creuses", "kWh", true, "{{ (value | float) / 1000 }}" },
+  { "PTEC",  NULL,          NULL,      "Période Tarifaire en cours", NULL, false,
+      "{% if value == \"TH..\" %}Toutes les Heures"
+      "{% elif value == \"HC..\" %}Heures Creuses"
+      "{% elif value == \"HP..\" %}Heures Pleines"
+      "{% elif value == \"HN..\" %}Heures Normales"
+      "{% elif value == \"PM..\" %}Heures de Pointe Mobile"
+      "{% else %}{{value}}"
+      "{% endif %}" },
+  { NULL }
+};
+
+/* workaround for libjson-c 0.12 which always escape
+ * strings while serializing
+ */
+static void unescape_str(const char *str)
+{
+  const char *s;
+  char *d;
+
+  for (s = str, d = (char*)str; *s; s++, d++) {
+    if (*s == '\\' && *(s+1) == '/')
+      s++;
+    *d = *s;
+  }
+  *d = '\0';
+}
+
+void ha_config_init(const char *tic_name, struct mosquitto *mosq_tic)
+{
+  ha_config_desc *desc;
+ // char payload[512];
+
+  json_object *device = json_object_new_object();
+  json_object *dev_ids = json_object_new_array();
+  json_object_array_add(dev_ids, json_object_new_string(tic_name));
+  json_object_object_add(device, "identifiers", dev_ids);
+  json_object_object_add(device, "manufacturer", json_object_new_string("Enedis"));
+  json_object_object_add(device, "model", json_object_new_string("Linky Monophasé"));
+  json_object_object_add(device, "name", json_object_new_string(tic_name));
+  json_object_object_add(device, "sw_version", json_object_new_string("0.0.1"));
+
+  for (desc = &ha_config_descs[0]; desc->tag != NULL; desc++) {
+    char topic[TOPIC_MAXLEN+1];
+    char vtopic[TOPIC_MAXLEN+1];
+    char uid[TOPIC_MAXLEN+1];
+    char name[TOPIC_MAXLEN+1];
+
+    snprintf(topic, TOPIC_MAXLEN, "homeassistant/sensor/%s/%s/config", tic_name, desc->tag);
+    snprintf(vtopic, TOPIC_MAXLEN, "tic2mqtt/%s/%s", tic_name, desc->tag);
+    snprintf(name, TOPIC_MAXLEN, "%s %s", tic_name, desc->name);
+    snprintf(uid, TOPIC_MAXLEN, "tic2mqtt_%s_%s", tic_name, desc->tag);
+
+    json_object *obj = json_object_new_object();
+    json_object_object_add(obj, "device", json_object_get(device));
+    json_object_object_add(obj, "name", json_object_new_string(name));
+    json_object_object_add(obj, "unique_id", json_object_new_string(uid));
+    json_object_object_add(obj, "state_topic", json_object_new_string(vtopic));
+    if (desc->state_class)
+      json_object_object_add(obj, "state_class", json_object_new_string(desc->state_class));
+    if (desc->device_class)
+      json_object_object_add(obj, "device_class", json_object_new_string(desc->device_class));
+    if (desc->unit)
+      json_object_object_add(obj, "unit_of_measurement", json_object_new_string(desc->unit));
+    if (desc->value_template)
+      json_object_object_add(obj, "value_template", json_object_new_string(desc->value_template));
+    if (desc->last_reset) {
+      json_object_object_add(obj, "last_reset_topic", json_object_new_string(vtopic));
+      json_object_object_add(obj, "last_reset_value_template", json_object_new_string("1970-01-01T00:00:00+00:00"));
+    }
+
+    const char *payload = json_object_to_json_string(obj);
+    unescape_str(payload);
+
+    log_info("%s\n%s\n", topic, payload);
+
+    if (mosq_tic) {
+      int res = mqtt_publish(mosq_tic, topic, NULL, payload, TIC_QOS);
+      if (res != 0)
+        log_error("Cannot publish topic %s: %s\n", topic, mqtt_strerror(res));
+    }
+    json_object_put(obj);
+  }
+
+  json_object_put(device);
+}
+