/**
 * TEST SKETCH 4.3 – DisplayManager Verifikation
 *
 * Testet alle Methoden des DisplayManagers:
 *   1. Alle LEDs EIN/AUS (Modul-Check)
 *   2. showLaserTime() mit verschiedenen Werten (Grenzwerttest)
 *   3. showCountdown() hochzählend
 *   4. showIdle()
 *   5. showStatus() mit "Err", "AP", "WiFi"
 *   6. Realistischer Loop: laufende Laserzeit + Countdown simuliert
 *
 * Flash: pio run -e test-display-mgr --target upload
 * Monitor: pio device monitor -e test-display-mgr
 */

#include <Arduino.h>
#include "display_manager.h"

// Pause zwischen Testschritten
#define STEP_MS 2000

static void step(const char* desc) {
    Serial.printf("[STEP] %s\n", desc);
    delay(STEP_MS);
}

// ---------------------------------------------------------------------------
void setup() {
    Serial.begin(115200);
    delay(500);

    Serial.println("\n========================================");
    Serial.println(" TEST 4.3 – DisplayManager");
    Serial.println("========================================");

    display.begin();
    display.printToSerial();

    // ------------------------------------------------------------------
    // 1. Alle LEDs EIN → alle 8 Module müssen leuchten
    // ------------------------------------------------------------------
    Serial.println("\n[1] Alle LEDs EIN (2s) – alle 8 Module pruefen");
    display.allLedsOn();
    delay(2000);
    display.allLedsOff();
    delay(500);

    // ------------------------------------------------------------------
    // 2. showLaserTime() – Grenzwerttests
    // ------------------------------------------------------------------
    Serial.println("\n[2] showLaserTime() Grenzwerte:");

    float testTimes[] = { 0.0f, 0.5f, 1.0f, 9.9f, 10.0f, 42.5f, 99.9f,
                          100.0f, 123.0f, 999.0f, 1000.0f, 9999.0f };
    for (float t : testTimes) {
        Serial.printf("    %.1f min → oben\n", t);
        display.showLaserTime(t);
        delay(1500);
    }
    display.clear();
    delay(500);

    // ------------------------------------------------------------------
    // 3. showCountdown() von 120 → 0 (jede Sekunde)
    // ------------------------------------------------------------------
    Serial.println("\n[3] showCountdown() 5..0:");
    for (int s = 5; s >= 0; s--) {
        Serial.printf("    %d s\n", s);
        display.showCountdown(s);
        delay(1000);
    }
    delay(500);

    // ------------------------------------------------------------------
    // 4. showIdle()
    // ------------------------------------------------------------------
    Serial.println("\n[4] showIdle() (2s)");
    display.showIdle();
    step("Erwarte '  --' auf unterer Reihe");

    // ------------------------------------------------------------------
    // 5. showStatus() mit verschiedenen Strings
    // ------------------------------------------------------------------
    Serial.println("\n[5] showStatus() Tests:");
    const char* statMsgs[] = { "Err ", "AP  ", "WiFi", "  oF" };
    for (const char* m : statMsgs) {
        Serial.printf("    '%s'\n", m);
        display.showStatus(m);
        delay(STEP_MS);
    }
    display.clear();
    delay(500);

    // ------------------------------------------------------------------
    // 6. Realistischer Betrieb: Laserzeit wächst, Countdown läuft
    // ------------------------------------------------------------------
    Serial.println("\n[6] Realistischer Betrieb (30s): Laserzeit + Countdown");
    Serial.println("    Erwarte: oben steigt, unten zaehlt runter, dann '--'");
}

// ---------------------------------------------------------------------------
void loop() {
    static float   totalMin   = 42.3f;
    static int     countdown  = 20;
    static bool    counting   = true;
    static uint32_t lastSec   = 0;
    static uint32_t lastTenth = 0;

    uint32_t now = millis();

    // Jede 100ms: Laserzeit um ~0.001 min erhöhen (0.06 min/min = 1x Normal)
    if (now - lastTenth >= 100) {
        lastTenth = now;
        totalMin += 0.001f;
        display.showLaserTime(totalMin);
    }

    // Jede Sekunde: Countdown herunterzählen
    if (now - lastSec >= 1000) {
        lastSec = now;
        if (counting && countdown > 0) {
            display.showCountdown(countdown);
            countdown--;
        } else if (counting && countdown == 0) {
            counting = false;
            display.showIdle();
            Serial.println("[LIVE] Countdown abgelaufen → Idle");
        }
        Serial.printf("[LIVE] %.2f min, countdown=%d\n", totalMin, countdown);
    }
}