#include <ArduinoJson.h>

#define JSON_SIZE   512

namespace Ha {

    struct Component {
        const char* name;
        const char* uniqueId;
        const char* configTopic;

        Component(const char* name, const char* uniqueId, const char* configTopic) {
            this->name = name;
            this->uniqueId = uniqueId;
            this->configTopic = configTopic;
        }

        virtual void buildConfig(JsonDocument& jsonDoc) {
            buildDeviceConfig(jsonDoc);
            jsonDoc["name"] = name;
            jsonDoc["unique_id"] = uniqueId;
        }

        void buildDeviceConfig(JsonDocument& jsonDoc) {
            JsonObject device = jsonDoc.createNestedObject("device");
            device["name"] = "ESP Clock";
            device["suggested_area"] = "Living room";
            JsonArray connections = device.createNestedArray("connections");
            JsonArray mac = connections.createNestedArray();
            mac.add("mac");
            mac.add(WiFi.macAddress());
        }
    };

    struct Command : Component {
        const char* commandTopic;

        Command(const char* name, const char* uniqueId, const char* configTopic, const char* commandTopic) : Component(name, uniqueId, configTopic) {
            this->commandTopic = commandTopic;
        }

        void buildConfig(JsonDocument& jsonDoc) {
            Component::buildConfig(jsonDoc);
            jsonDoc["command_topic"] = commandTopic;
        }

    };

    struct Sensor : Component {
        const char* deviceClass;
        const char* unitMeasure;
        const char* valueTemplate;
        const char* stateTopic;

        Sensor(const char* name, const char* uniqueId, const char* configTopic, const char* stateTopic) : Component(name, uniqueId, configTopic) {
            this->stateTopic = stateTopic;
        }

        void buildConfig(JsonDocument& jsonDoc) {
            Component::buildConfig(jsonDoc);
            jsonDoc["device_class"] = deviceClass;
            jsonDoc["unit_of_measurement"] = unitMeasure;
            jsonDoc["value_template"] = valueTemplate;
            jsonDoc["state_topic"] = stateTopic;
        }

    };

    struct TemperatureSensor : Sensor {
        TemperatureSensor(const char* name, const char* uniqueId, const char* configTopic, const char* stateTopic) : Sensor(name, uniqueId, configTopic, stateTopic) {
            deviceClass = "temperature";
            unitMeasure = "°C";
            valueTemplate = "{{ value_json.temperature }}";
        }
    };

    struct PressureSensor : Sensor {
        PressureSensor(const char* name, const char* uniqueId, const char* configTopic, const char* stateTopic) : Sensor(name, uniqueId, configTopic, stateTopic) {
            deviceClass = "pressure";
            unitMeasure = "hPa";
            valueTemplate = "{{ value_json.pressure }}";
        }
    };

    struct AltitudeSensor : Sensor {
        AltitudeSensor(const char* name, const char* uniqueId, const char* configTopic, const char* stateTopic) : Sensor(name, uniqueId, configTopic, stateTopic) {
            deviceClass = "distance";
            unitMeasure = "m";
            valueTemplate = "{{ value_json.altitude }}";
        }
    };
}