; =============================================================================
; Marine Navigation Display — PlatformIO Configuration
; Target: Waveshare ESP32-S3-Zero + 4.2" E-Ink (400x300)
; =============================================================================

[platformio]
default_envs = esp32s3_marine_display

; -----------------------------------------------------------------------------
; Common settings shared across environments
; -----------------------------------------------------------------------------
[env]
platform               = espressif32 @ ^6.9.0
framework              = arduino
monitor_speed          = 115200
monitor_filters        = esp32_exception_decoder, time

; -----------------------------------------------------------------------------
; Production environment
; -----------------------------------------------------------------------------
[env:esp32s3_marine_display]
board                  = esp32-s3-devkitm-1

; Custom partition table enabling:
;   - OTA_0 / OTA_1 (each 1.5 MB)
;   - LittleFS (1 MB) for config + web assets
board_build.partitions = partitions/custom_ota.csv

; Flash mode: QIO for speed, 80 MHz
board_build.flash_mode = qio
board_build.f_flash     = 80000000L

; Enable PSRAM if available on the S3-Zero variant
build_flags =
    -D ARDUINO_USB_MODE=1
    -D ARDUINO_USB_CDC_ON_BOOT=1
    -D CONFIG_SPIRAM_USE_MALLOC=1
    ; ── Application build flags ──────────────────────────────────────────
    -D APP_VERSION=\"1.0.0\"
    ; ── Display ──────────────────────────────────────────────────────────
    -D DISPLAY_WIDTH=400
    -D DISPLAY_HEIGHT=300
    ; ── BLE UUIDs (Marine Gateway protocol) ──────────────────────────────
    -D BLE_DEVICE_NAME=\"MarineGateway\"
    ; ── Touch pins (ESP32-S3 native capacitive touch) ────────────────────
    -D TOUCH_PIN_NEXT=1
    -D TOUCH_PIN_PREV=2
    -D TOUCH_PIN_ACTION=3
    ; ── NeoPixel status LED ───────────────────────────────────────────────
    -D STATUS_LED_PIN=21
    -D STATUS_LED_COUNT=1
    ; ── Misc ──────────────────────────────────────────────────────────────
    -D CORE_DEBUG_LEVEL=3
    -DCONFIG_NIMBLE_ENABLED=1

; LittleFS filesystem image (contains web UI assets)
board_build.filesystem = littlefs

; Upload filesystem image: pio run -t uploadfs
extra_scripts          = pre:scripts/gen_littlefs.py

; ── Libraries ────────────────────────────────────────────────────────────────
lib_deps =
    ; E-Ink display driver (GxEPD2) — latest stable
    zinggjm/GxEPD2 @ ^1.6.3

    ; Adafruit GFX (required by GxEPD2)
    adafruit/Adafruit GFX Library @ ^1.11.11

    ; JSON parsing/serialisation
    bblanchon/ArduinoJson @ ^7.3.1

    ; BLE stack — NimBLE (much lighter than Bluedroid)
    h2zero/NimBLE-Arduino @ ^2.3.2

    ; Async HTTP server for the web UI + OTA
    ESP32Async/ESPAsyncWebServer @ ^3.7.4
    ESP32Async/AsyncTCP @ ^3.3.7

    ; NeoPixel status LED
    adafruit/Adafruit NeoPixel @ ^1.12.3

; ── Upload / Debug ───────────────────────────────────────────────────────────
upload_speed           = 921600
; OTA upload (uncomment and set IP when device is on the network):
; upload_protocol      = espota
; upload_port          = 192.168.4.1

; -----------------------------------------------------------------------------
; Development / verbose environment (same board, extra logging)
; -----------------------------------------------------------------------------
[env:esp32s3_marine_display_dev]
extends                = env:esp32s3_marine_display
build_flags            =
    ${env:esp32s3_marine_display.build_flags}
    -D CORE_DEBUG_LEVEL=5
    -D DEBUG_BLE=1
    -D DEBUG_DISPLAY=1