35 lines
1.4 KiB
C++
35 lines
1.4 KiB
C++
#include <ESPMegaIoT.hpp>
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void ESPMegaIoT::mqttCallback(char *topic, byte *payload, unsigned int length) {
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// Create a null terminated string from the payload
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memcpy(payload_buffer, payload, length);
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payload_buffer[length] = '\0';
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// Remove the base topic from the topic
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char *topic_without_base = topic + strlen(base_topic) + 1;
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// Call the respective card's mqtt callback
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// Note that after the base topic, there should be the card id
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// /base_topic/card_id/...
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// First, get the card id in integer form
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char *card_id_str = strtok(topic_without_base, "/");
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uint8_t card_id = atoi(card_id_str);
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// Check if the card is registered
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if (expansionCards[card_id] == NULL) {
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return;
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}
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// Get the card type
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uint8_t card_type = expansionCards[card_id]->getType();
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// Cast the card to the respective type
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switch(card_type) {
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case CARD_TYPE_ANALOG_INPUT:
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((AnalogIoT *)expansionCards[card_id])->mqttCallback(topic_without_base + strlen(card_id_str) + 1, payload_buffer);
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break;
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case CARD_TYPE_DIGITAL_INPUT:
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((DigitalInputIoT *)expansionCards[card_id])->mqttCallback(topic_without_base + strlen(card_id_str) + 1, payload_buffer);
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break;
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case CARD_TYPE_DIGITAL_OUTPUT:
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((DigitalOutputIoT *)expansionCards[card_id])->mqttCallback(topic_without_base + strlen(card_id_str) + 1, payload_buffer);
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break;
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}
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}
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