From 87c9ca3c814a9f63eade24bfb6ef2c67114630cb Mon Sep 17 00:00:00 2001
From: Camden Dixie O'Brien <cdo@wip.sh>
Date: Mon, 15 May 2023 12:10:51 +0100
Subject: [PATCH] Add SSID and PSK config items

---
 components/config/config.c | 40 +++++++++++++++++++++++++++
 components/config/config.h | 56 ++++++++++++++++++++++++++++++++++++++
 main/Kconfig.projbuild     |  9 ++++--
 3 files changed, 103 insertions(+), 2 deletions(-)

diff --git a/components/config/config.c b/components/config/config.c
index 1c65c89..9cb9e6e 100644
--- a/components/config/config.c
+++ b/components/config/config.c
@@ -19,6 +19,8 @@
 
 typedef enum {
 	HOSTNAME,
+	SSID,
+	PSK,
 	ITEM_COUNT,
 } ItemIndex;
 
@@ -37,6 +39,14 @@ static Item state[ITEM_COUNT] = {
 	    .id = "hostname",
 	    .default_value = CONFIG_DEFAULT_HOSTNAME,
 	},
+	[SSID] = {
+		.id = "ssid",
+		.default_value = CONFIG_DEFAULT_SSID,
+	},
+	[PSK] = {
+		.id = "psk",
+		.default_value = CONFIG_DEFAULT_PSK,
+	},
 };
 
 static bool load(ItemIndex item)
@@ -185,3 +195,33 @@ void config_add_hostname_callback(ConfigCallback callback)
 {
 	add_callback(HOSTNAME, callback);
 }
+
+void config_set_ssid(const char *ssid)
+{
+	set(SSID, ssid);
+}
+
+size_t config_get_ssid(char *buffer, size_t buffer_size)
+{
+	return get(SSID, buffer, buffer_size);
+}
+
+void config_add_ssid_callback(ConfigCallback callback)
+{
+	add_callback(SSID, callback);
+}
+
+void config_set_psk(const char *psk)
+{
+	set(PSK, psk);
+}
+
+size_t config_get_psk(char *buffer, size_t buffer_size)
+{
+	return get(PSK, buffer, buffer_size);
+}
+
+void config_add_psk_callback(ConfigCallback callback)
+{
+	add_callback(PSK, callback);
+}
diff --git a/components/config/config.h b/components/config/config.h
index 869e26d..1c38106 100644
--- a/components/config/config.h
+++ b/components/config/config.h
@@ -51,4 +51,60 @@ size_t config_get_hostname(char *buffer, size_t buffer_size);
  */
 void config_add_hostname_callback(ConfigCallback callback);
 
+/**
+ * Set the SSID of the WiFi network.
+ *
+ * The argument should be a null-terminated string. If the maximum
+ * length is exceeded, the value will still be used, but will be
+ * truncated.
+ */
+void config_set_ssid(const char *ssid);
+
+/**
+ * Write the SSID of the WiFi network into the given buffer.
+ *
+ * The length of the SSID is returned. If the value's size exceeds
+ * the size of the buffer, nothing will be written to the buffer but
+ * the length is still returned.
+ */
+size_t config_get_ssid(char *buffer, size_t buffer_size);
+
+/**
+ * Add a callback for SSID updates.
+ *
+ * The function specified in the argument will be invoked whenever a
+ * the ssid is updated, with the new value as its argument. The
+ * lifetime of the passed argument will be static, but the value may
+ * be modified once the callback returns.
+ */
+void config_add_ssid_callback(ConfigCallback callback);
+
+/**
+ * Set the PSK for the WiFi network.
+ *
+ * The argument should be a null-terminated string. If the maximum
+ * length is exceeded, the value will still be used, but will be
+ * truncated.
+ */
+void config_set_psk(const char *psk);
+
+/**
+ * Write the PSK for the WiFi network into the given buffer.
+ *
+ * The length of the psk is returned. If the value's size exceeds
+ * the size of the buffer, nothing will be written to the buffer but
+ * the length is still returned.
+ */
+size_t config_get_psk(char *buffer, size_t buffer_size);
+
+/**
+ * Add a callback for PSK updates.
+ *
+ * The function specified in the argument will be invoked whenever a
+ * the psk is updated, with the new value as its argument. The
+ * lifetime of the passed argument will be static, but the value may
+ * be modified once the callback returns.
+ */
+void config_add_psk_callback(ConfigCallback callback);
+
 #endif
diff --git a/main/Kconfig.projbuild b/main/Kconfig.projbuild
index 7194f29..68f73d3 100644
--- a/main/Kconfig.projbuild
+++ b/main/Kconfig.projbuild
@@ -1,6 +1,11 @@
 menu "Bedside clock settings"
      config DEFAULT_HOSTNAME
-            string "The default hostname for the device"
+            string "Default hostname"
             default "bedside-clock"
-            prompt "Default hostname"
+     config DEFAULT_SSID
+            string "SSID of default WiFi network"
+            default ""
+     config DEFAULT_PSK
+            string "PSK for default WiFi network"
+            default ""
 endmenu