#!/usr/bin/env bash
set -euo pipefail

ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
cd "$ROOT"

[ -f "$ROOT/.yrxtls-ios-target" ] && . "$ROOT/.yrxtls-ios-target"

TARGET="${1:-${YRXTALS_IOS_KIND:-}}"
if [ -z "$TARGET" ]; then
    if xcrun devicectl list devices 2>/dev/null | grep -q "available (paired)"; then
        TARGET="device"
    else
        TARGET="sim"
    fi
fi

case "$TARGET" in
    device) export YRXTALS_IOS_DEVICE="${YRXTALS_IOS_DEVICE:-${YRXTALS_IOS_UDID:-}}" ;;
    sim)    export YRXTALS_IOS_SIM="${YRXTALS_IOS_SIM:-${YRXTALS_IOS_UDID:-}}" ;;
esac

case "$TARGET" in
    sim)
        bash "$ROOT/scripts/ios/build.sh" sim
        APP="$ROOT/build/ios/YrXtals.app"
        BUNDLE_ID="org.else-if.yrxtals"

        DEV="${YRXTALS_IOS_SIM:-}"
        if [ -z "$DEV" ]; then
            DEV="$(xcrun simctl list devices booted | awk '/Booted/ {print $NF}' | tr -d '()' | head -1 || true)"
        fi
        if [ -z "$DEV" ]; then
            DEV="$(xcrun simctl list devices available | awk '/iPad/ && /\([A-F0-9\-]+\)/ {gsub(/[\(\)]/,"",$NF); print $NF; exit}')"
            if [ -z "$DEV" ]; then
                echo "no iPad simulator available, open Xcode > Window > Devices and Simulators to add one" >&2
                exit 1
            fi
        fi
        xcrun simctl boot "$DEV" 2>/dev/null || true
        open -a Simulator

        echo "Installing to simulator $DEV..."
        xcrun simctl install "$DEV" "$APP"
        echo "Launching..."
        xcrun simctl launch "$DEV" "$BUNDLE_ID"
        ;;

    device)
        bash "$ROOT/scripts/ios/build.sh" device
        APP="$ROOT/build/ios/YrXtals.app"

        AVAILABLE_LINES="$(xcrun devicectl list devices 2>/dev/null \
            | grep 'available (paired)' \
            | grep -E 'iPad|iPhone' || true)"

        DEVICE_ID="${YRXTALS_IOS_DEVICE:-}"
        if [ -n "$DEVICE_ID" ] && ! echo "$AVAILABLE_LINES" | grep -q "$DEVICE_ID"; then
            echo "saved device $DEVICE_ID not currently available, falling back to first paired device" >&2
            DEVICE_ID=""
        fi
        if [ -z "$DEVICE_ID" ]; then
            DEVICE_ID="$(echo "$AVAILABLE_LINES" \
                | awk '{for(i=1;i<=NF;i++) if($i ~ /^[A-F0-9-]{36}$/) {print $i; exit}}')"
        fi

        if [ -z "$DEVICE_ID" ]; then
            echo "no paired iPad/iPhone found, connect via cable and trust the host on the device" >&2
            exit 1
        fi

        echo "Installing to device $DEVICE_ID..."
        xcrun devicectl device install app --device "$DEVICE_ID" "$APP"

        echo "Launching..."
        xcrun devicectl device process launch --device "$DEVICE_ID" org.else-if.yrxtals || true
        ;;

    *)
        echo "usage: $0 [sim|device]" >&2
        exit 2
        ;;
esac