web_server.h

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#pragma once

#include "list_entities.h"

#include "esphome/components/web_server_base/web_server_base.h"
#include "esphome/core/component.h"
#include "esphome/core/controller.h"

#include <vector>
#ifdef USE_ESP32
#include <deque>
#include <freertos/FreeRTOS.h>
#include <freertos/semphr.h>
#endif

#if USE_WEBSERVER_VERSION == 2
extern const uint8_t ESPHOME_WEBSERVER_INDEX_HTML[] PROGMEM;
extern const size_t ESPHOME_WEBSERVER_INDEX_HTML_SIZE;
#endif

#ifdef USE_WEBSERVER_CSS_INCLUDE
extern const uint8_t ESPHOME_WEBSERVER_CSS_INCLUDE[] PROGMEM;
extern const size_t ESPHOME_WEBSERVER_CSS_INCLUDE_SIZE;
#endif

#ifdef USE_WEBSERVER_JS_INCLUDE
extern const uint8_t ESPHOME_WEBSERVER_JS_INCLUDE[] PROGMEM;
extern const size_t ESPHOME_WEBSERVER_JS_INCLUDE_SIZE;
#endif

namespace esphome {
namespace web_server {

struct UrlMatch {
  std::string domain;  
  std::string id;      
  std::string method;  
  bool valid;          
};

enum JsonDetail { DETAIL_ALL, DETAIL_STATE };

class WebServer : public Controller, public Component, public AsyncWebHandler {
 public:
  WebServer(web_server_base::WebServerBase *base);

#if USE_WEBSERVER_VERSION == 1

  void set_css_url(const char *css_url);

  void set_js_url(const char *js_url);
#endif

#ifdef USE_WEBSERVER_CSS_INCLUDE

  void set_css_include(const char *css_include);
#endif

#ifdef USE_WEBSERVER_JS_INCLUDE

  void set_js_include(const char *js_include);
#endif

  void set_include_internal(bool include_internal) { include_internal_ = include_internal; }
  void set_allow_ota(bool allow_ota) { this->allow_ota_ = allow_ota; }
  void set_expose_log(bool expose_log) { this->expose_log_ = expose_log; }

  // ========== INTERNAL METHODS ==========
  // (In most use cases you won't need these)
  void setup() override;
  void loop() override;

  void dump_config() override;

  float get_setup_priority() const override;

  void handle_index_request(AsyncWebServerRequest *request);

  std::string get_config_json();

#ifdef USE_WEBSERVER_CSS_INCLUDE
  void handle_css_request(AsyncWebServerRequest *request);
#endif

#ifdef USE_WEBSERVER_JS_INCLUDE
  void handle_js_request(AsyncWebServerRequest *request);
#endif

#ifdef USE_SENSOR
  void on_sensor_update(sensor::Sensor *obj, float state) override;
  void handle_sensor_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string sensor_json(sensor::Sensor *obj, float value, JsonDetail start_config);
#endif

#ifdef USE_SWITCH
  void on_switch_update(switch_::Switch *obj, bool state) override;

  void handle_switch_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string switch_json(switch_::Switch *obj, bool value, JsonDetail start_config);
#endif

#ifdef USE_BUTTON
  void handle_button_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string button_json(button::Button *obj, JsonDetail start_config);
#endif

#ifdef USE_BINARY_SENSOR
  void on_binary_sensor_update(binary_sensor::BinarySensor *obj, bool state) override;

  void handle_binary_sensor_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string binary_sensor_json(binary_sensor::BinarySensor *obj, bool value, JsonDetail start_config);
#endif

#ifdef USE_FAN
  void on_fan_update(fan::Fan *obj) override;

  void handle_fan_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string fan_json(fan::Fan *obj, JsonDetail start_config);
#endif

#ifdef USE_LIGHT
  void on_light_update(light::LightState *obj) override;

  void handle_light_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string light_json(light::LightState *obj, JsonDetail start_config);
#endif

#ifdef USE_TEXT_SENSOR
  void on_text_sensor_update(text_sensor::TextSensor *obj, const std::string &state) override;

  void handle_text_sensor_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string text_sensor_json(text_sensor::TextSensor *obj, const std::string &value, JsonDetail start_config);
#endif

#ifdef USE_COVER
  void on_cover_update(cover::Cover *obj) override;

  void handle_cover_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string cover_json(cover::Cover *obj, JsonDetail start_config);
#endif

#ifdef USE_NUMBER
  void on_number_update(number::Number *obj, float state) override;
  void handle_number_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string number_json(number::Number *obj, float value, JsonDetail start_config);
#endif

#ifdef USE_SELECT
  void on_select_update(select::Select *obj, const std::string &state, size_t index) override;
  void handle_select_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string select_json(select::Select *obj, const std::string &value, JsonDetail start_config);
#endif

#ifdef USE_CLIMATE
  void on_climate_update(climate::Climate *obj) override;
  void handle_climate_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string climate_json(climate::Climate *obj, JsonDetail start_config);
#endif

#ifdef USE_LOCK
  void on_lock_update(lock::Lock *obj) override;

  void handle_lock_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string lock_json(lock::Lock *obj, lock::LockState value, JsonDetail start_config);
#endif

#ifdef USE_ALARM_CONTROL_PANEL
  void on_alarm_control_panel_update(alarm_control_panel::AlarmControlPanel *obj) override;

  void handle_alarm_control_panel_request(AsyncWebServerRequest *request, const UrlMatch &match);

  std::string alarm_control_panel_json(alarm_control_panel::AlarmControlPanel *obj,
                                       alarm_control_panel::AlarmControlPanelState value, JsonDetail start_config);
#endif

  bool canHandle(AsyncWebServerRequest *request) override;
  void handleRequest(AsyncWebServerRequest *request) override;
  bool isRequestHandlerTrivial() override;

 protected:
  void schedule_(std::function<void()> &&f);
  friend ListEntitiesIterator;
  web_server_base::WebServerBase *base_;
  AsyncEventSource events_{"/events"};
  ListEntitiesIterator entities_iterator_;
#if USE_WEBSERVER_VERSION == 1
  const char *css_url_{nullptr};
  const char *js_url_{nullptr};
#endif
#ifdef USE_WEBSERVER_CSS_INCLUDE
  const char *css_include_{nullptr};
#endif
#ifdef USE_WEBSERVER_JS_INCLUDE
  const char *js_include_{nullptr};
#endif
  bool include_internal_{false};
  bool allow_ota_{true};
  bool expose_log_{true};
#ifdef USE_ESP32
  std::deque<std::function<void()>> to_schedule_;
  SemaphoreHandle_t to_schedule_lock_;
#endif
};

}  // namespace web_server
}  // namespace esphome