Add home assistant bare bones panel
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05ae49976b
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9018d83868
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@ -10,10 +10,12 @@
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// A list of all panels to be displayed, in order
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dashboard::panel::panel* PANELS[] = {
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//new dashboard::panel::sample_panel(),
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new dashboard::panel::homeassistant(),
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new dashboard::panel::plex(),
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new dashboard::panel::weather(),
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new dashboard::panel::wifi(),
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};
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size_t PANELS_LENGTH = sizeof(PANELS)/sizeof(PANELS[0]);
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// OVERLAY
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@ -49,7 +51,8 @@ const char* IMAGE_LOCATIONS[] = {
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//plex
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"plex_background.jpg",
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//homeassistant
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};
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size_t IMAGE_LOCATIONS_LENGTH = sizeof(IMAGE_LOCATIONS)/sizeof(IMAGE_LOCATIONS[0]);
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@ -76,6 +79,7 @@ const FONT_SIZE_STRING CONST_STRINGS[] = {
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{ "Weather", { "Roboto_Mono/RobotoMono-Medium.ttf", 50 } },
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{ "Wireless", { "Roboto_Mono/RobotoMono-Medium.ttf", 50 } },
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{ "Plex", { "Roboto_Mono/RobotoMono-Medium.ttf", 50} },
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{ "Homeassistant", { "Roboto_Mono/RobotoMono-Medium.ttf", 50} },
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//sample panel
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//{ "Sample Panel", { "Roboto_Mono/RobotoMono-Medium.ttf", 50} },
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@ -101,5 +105,7 @@ const FONT_SIZE_STRING CONST_STRINGS[] = {
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{ "Playing", {"Roboto_Mono/RobotoMono-Medium.ttf", 28} },
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{ "Top Users", {"Roboto_Mono/RobotoMono-Medium.ttf", 50} },
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//Home assistant
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{ "Home", {"Roboto_Mono/RobotoMono-Medium.ttf", 50} },
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};
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size_t CONST_STRINGS_LENGTH = sizeof(CONST_STRINGS)/sizeof(CONST_STRINGS[0]);
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@ -79,6 +79,7 @@ constexpr int IMG_FLAGS = 0
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#include "panel/def_overlay.hpp"
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#include "panel/wifi.hpp"
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#include "panel/plex.hpp"
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#include "panel/homeassistant.hpp"
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//uncomment this to use the sample panel
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//#include "panel/sample_panel.hpp"
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extern dashboard::panel::panel* PANELS[];
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@ -0,0 +1,225 @@
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///////////////////////////////////////////////////////////////////////////////
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// Tyler Perkins
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// 14-1-22
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// homeassistant panel
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//
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#include "homeassistant.hpp"
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#include "homeassistant_config.hpp"
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using namespace dashboard::panel;
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///////////////////////////////////////////////////////////////////////////////
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// Constructors ///////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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homeassistant::homeassistant(){
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std::cerr << "HOMEASSISTANT CONSTRUCTOR\n";
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_time_on_screen = HOMEASSISTANT_DEFAULT_ON_SCREEN_TIME;
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_update_interval = std::chrono::milliseconds{HOMEASSISTANT_UPDATE_INTERVAL};
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_texture = nullptr;
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_title = HOMEASSISTANT_TITLE;
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std::string api_string = "Authorization: Bearer ";
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api_string += HOMEASSISTANT_APIKEY;
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headers = NULL;
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headers = curl_slist_append(headers, api_string.c_str());
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headers = curl_slist_append(headers, "Content-Type: application/json");
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api_string.clear();
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api_curl = curl_easy_init();
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curl_easy_setopt(api_curl, CURLOPT_HTTPHEADER, headers);
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curl_easy_setopt(api_curl, CURLOPT_URL, HOMEASSISTANT_URL);
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curl_easy_setopt(api_curl, CURLOPT_WRITEFUNCTION,
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dashboard::panel::homeassistant::curl_callback);
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curl_easy_setopt(api_curl, CURLOPT_WRITEDATA, &json_string);
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//Write request string in update function
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}
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homeassistant::~homeassistant(){
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std::cerr << "HOMEASSISTANT DECONSTRUCTOR\n";
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if(_texture != nullptr){
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SDL_DestroyTexture(_texture);
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}
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if(api_curl != nullptr){
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curl_easy_cleanup(api_curl);
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// Draw function //////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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void homeassistant::draw(){
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//create the texture if this is the first time running draw
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if(_texture == nullptr){
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initTexture();
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update();
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update_texture();
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}
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//check if its time to update
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if((std::chrono::high_resolution_clock::now() - _last_update)
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> _update_interval){
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update();
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update_texture();
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}
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SDL_RenderCopy(board::getRenderer(), _texture, NULL, NULL);
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}
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///////////////////////////////////////////////////////////////////////////////
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// Helper functions ///////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////
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// Update the information of the obj
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// This DOES NOT update the display
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void homeassistant::update(){
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std::cerr << "HOMEASSISTANT::UPDATE\n";
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_last_update = std::chrono::high_resolution_clock::now();
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//perform request
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curl_easy_perform(api_curl);
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std::cerr << json_string << "\n";
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//parse the result
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json_doc.Parse(json_string.c_str());
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//update internal state
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for(rapidjson::SizeType i = 0; i < json_doc.Size(); i++){
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//if is a person entry
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if(strstr(json_doc[i]["entity_id"].GetString(), "person.") != NULL){
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//get the last changed date and convert to a tm
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std::string format_str = json_doc[i]["last_changed"].GetString();
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std::time_t t = datestringToTm(format_str);
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std::stringstream ss;
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ss << std::put_time(std::localtime(&t), "%b %e, %I:%M %p");
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struct home_entry entry = {
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json_doc[i]["attributes"]["friendly_name"].GetString(),
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strcmp(json_doc[i]["state"].GetString(), "home") == 0 ? true : false,
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ss.str(),
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};
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home_entries.push_back(entry);
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}
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//TODO other entries from general home assistant?
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}
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json_string.clear();
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}
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///////////////////////////////////////
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// Update the texture that is being
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// displayed, based on data grabed from json
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void homeassistant::update_texture(){
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std::cerr << "HOMEASSISTANT::UPDATE_TEXTURE\n";
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SDL_Rect tgt;
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SDL_SetRenderTarget(board::getRenderer(), _texture);
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SDL_RenderClear(board::getRenderer());
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constexpr int GAP_SIZE = 10;
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//draw each name and time last seen
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{
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for(size_t i = 0; i < home_entries.size(); ++i){
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tgt.x = (SCREEN_WIDTH / (2 * home_entries.size()))
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+ i * (SCREEN_WIDTH / home_entries.size());
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tgt.y = DEF_OVERLAY_BAR_HEIGHT + GAP_SIZE;
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TTF_SizeText(board::getFont( {"Roboto_Mono/RobotoMono-Medium.ttf", 50} ),
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home_entries[i].name.c_str(),
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&tgt.w, &tgt.h);
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tgt.x -= tgt.w / 2;
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SDL_RenderCopy(board::getRenderer(),
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board::getString(home_entries[i].name,
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{ "Roboto_Mono/RobotoMono-Medium.ttf", 50 }),
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NULL, &tgt);
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//down a new line
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tgt.y += tgt.h + GAP_SIZE;
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tgt.x += tgt.w / 2;
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std::string home = "";
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//if is home
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if(home_entries[i].home){
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home = "Home";
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} else {
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home = home_entries[i].time;
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}
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TTF_SizeText(board::getFont( {"Roboto_Mono/RobotoMono-Medium.ttf", 50} ),
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home.c_str(),
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&tgt.w, &tgt.h);
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tgt.x -= tgt.w / 2;
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SDL_RenderCopy(board::getRenderer(),
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board::getString(home,
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{ "Roboto_Mono/RobotoMono-Medium.ttf", 50 }),
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NULL, &tgt);
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}
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}
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home_entries.clear();
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SDL_SetRenderTarget(board::getRenderer(), NULL);
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}
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///////////////////////////////////////
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// Lazy load the texture object
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// This is to make sure that all of SDL
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// is init before we attempt to draw anything
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void homeassistant::initTexture(){
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if(_texture == nullptr){
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_texture = SDL_CreateTexture(board::getRenderer(),
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SDL_PIXELFORMAT_RGBA8888,
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SDL_TEXTUREACCESS_TARGET,
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SCREEN_WIDTH, SCREEN_HEIGHT);
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SDL_SetTextureBlendMode(_texture, SDL_BLENDMODE_BLEND);
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}
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}
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///////////////////////////////////////
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// Convert the homeassistant string
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// format to a tm object
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std::time_t homeassistant::datestringToTm(const std::string& date_string){
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int year = 0, month = 0, day = 0, hour = 0, minuite = 0, second = 0;
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std::tm tm_tmp{};
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if(sscanf(date_string.c_str(), "%4d-%2d-%2dT%2d:%2d:%2d",
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&year, &month, &day, &hour, &minuite, &second) == 6){
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tm_tmp.tm_year = year - 1900;
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tm_tmp.tm_mon = month - 1;
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tm_tmp.tm_mday = day;
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tm_tmp.tm_hour = hour;
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tm_tmp.tm_min = minuite;
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tm_tmp.tm_sec = second;
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}
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return std::mktime(&tm_tmp);
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}
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///////////////////////////////////////
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// Curl callback function
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size_t dashboard::panel::homeassistant::curl_callback(void* contents, size_t size,
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size_t nmemb, void* userp){
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((std::string*)userp)->append((char*)contents, size * nmemb);
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return size * nmemb;
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}
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@ -0,0 +1,59 @@
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///////////////////////////////////////////////////////////////////////////////
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// Tyler Perkins
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// 14-1-22
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// Home assistant panel
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//
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#pragma once
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#include "panel.hpp"
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#include <SDL.h>
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#include <SDL2/SDL_image.h>
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#include <SDL2/SDL_ttf.h>
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#include <curl/curl.h>
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#include "../util/rapidjson/document.h"
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#include <iostream>
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#include <string>
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#include <string.h>
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#include <chrono>
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#include <vector>
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#include <iomanip>
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namespace dashboard::panel {
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class homeassistant : public panel {
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public:
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homeassistant();
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~homeassistant();
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static size_t curl_callback(void*, size_t, size_t, void*);
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void draw();
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private:
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void update();
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void update_texture();
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void initTexture();
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std::time_t datestringToTm(const std::string&);
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struct home_entry {
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std::string name;
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bool home;
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std::string time;
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};
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std::vector<home_entry> home_entries;
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CURL* api_curl;
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struct curl_slist *headers;
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std::string json_string;
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rapidjson::Document json_doc;
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std::chrono::time_point<std::chrono::high_resolution_clock> _last_update;
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std::chrono::milliseconds _update_interval;
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};
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}
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#include "../board.hpp"
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@ -0,0 +1,31 @@
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///////////////////////////////////////////////////////////////////////////////
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// Tyler Perkins
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// 14-1-22
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// homeassistant configuration
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//
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#pragma once
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#include "def_overlay_config.hpp"
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namespace dashboard::panel {
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//This will be displayed at the top left on the status bar. Set to a blank
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//string to not show anything
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constexpr char HOMEASSISTANT_TITLE[] = "Home assistant";
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//API key, you can get this in homeassistant under your profile
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constexpr char HOMEASSISTANT_APIKEY[] = "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiIxYTNhNDhhYTBlZDM0MjkyOTk5OWZhNGVjZGRjMGUwMCIsImlhdCI6MTY0MjE4NDU0MCwiZXhwIjoxOTU3NTQ0NTQwfQ.Zdy7-ZwX0HuwhmUGeLhF5XCluotsKmpDqmi5o-hQZCc";
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//This API endpoint. Sub the IP with the IP of the homeassistant server on
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//your network. Be sure to enable the RESTful API in homeassistant's
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//configuration.yaml
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constexpr char HOMEASSISTANT_URL[] = "http://192.168.1.104:8123/api/states";
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//Default time the slide is shown on screen, in ms
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//Default 15s
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constexpr size_t HOMEASSISTANT_DEFAULT_ON_SCREEN_TIME = 15000;
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//How long should we wait between updates? in ms
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//Default 15
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constexpr size_t HOMEASSISTANT_UPDATE_INTERVAL = 15000;
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}
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