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

ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
source "$ROOT/scripts/_build-dirs.sh"
cd "$ROOT"

CONFIG_FILE="$HOME/.acord/ios-target"

# resolve target from cli arg, saved config, or auto-detect.
TARGET=""
SELECTED_ID=""
SELECTED_LABEL=""

CLI_ARG="${1:-}"
if [ -n "$CLI_ARG" ]; then
    TARGET="$CLI_ARG"
elif [ -f "$CONFIG_FILE" ]; then
    # shellcheck disable=SC1090
    . "$CONFIG_FILE"
    case "${KIND:-}" in
        device) TARGET="device"; SELECTED_ID="$ID"; SELECTED_LABEL="${LABEL:-}";;
        sim)    TARGET="sim";    SELECTED_ID="$ID"; SELECTED_LABEL="${LABEL:-}";;
        *)      echo "warning: $CONFIG_FILE has unknown KIND='${KIND:-}', falling back to auto-detect" >&2;;
    esac
fi

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

if [ -n "$SELECTED_LABEL" ]; then
    echo "Target: $TARGET — $SELECTED_LABEL ($SELECTED_ID)"
else
    echo "Target: $TARGET (auto-detected)"
fi

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

        DEV="$SELECTED_ID"
        if [ -z "$DEV" ]; then
            DEV="$(xcrun simctl list devices booted | { grep -oE '[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}' || true; } | head -1)"
        fi
        if [ -z "$DEV" ]; then
            DEV="$(xcrun simctl list devices available | awk '/iPad/' | { grep -oE '[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}' || true; } | head -1)"
            if [ -z "$DEV" ]; then
                echo "no iPad simulator available — open Xcode → Window → Devices and Simulators to add one" >&2
                exit 1
            fi
        fi

        # boot the simulator if not already running.
        STATE="$(xcrun simctl list devices | awk -v id="$DEV" '$0 ~ id { for (i=1; i<=NF; i++) if ($i ~ /^\(/) state=$i } END { gsub(/[()]/, "", state); print state }')"
        if [ "$STATE" != "Booted" ]; then
            xcrun simctl boot "$DEV" 2>/dev/null || true
            open -a Simulator
        fi

        echo "Installing to simulator $DEV..."
        xcrun simctl install "$DEV" "$APP"
        if [ "${ACORD_IOS_NOLAUNCH:-0}" = "1" ]; then
            echo "Skipping launch (ACORD_IOS_NOLAUNCH=1)"
        else
            echo "Launching..."
            xcrun simctl launch "$DEV" "$BUNDLE_ID"
        fi
        ;;

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

        DEVICE_ID="${SELECTED_ID:-${ACORD_IOS_DEVICE:-}}"
        if [ -z "$DEVICE_ID" ]; then
            DEVICE_ID="$(xcrun devicectl list devices 2>/dev/null \
                | awk '/available \(paired\)/ {for(i=1;i<=NF;i++) if($i ~ /^[A-F0-9-]{36}$/) {print $i; exit}}')"
        fi

        if [ -z "$DEVICE_ID" ]; then
            echo "no paired device found — connect via cable and trust this Mac on the device" >&2
            echo "  or run: cargo xtask select-ios" >&2
            exit 1
        fi

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

        if [ "${ACORD_IOS_NOLAUNCH:-0}" = "1" ]; then
            echo "Skipping launch (ACORD_IOS_NOLAUNCH=1)"
        else
            echo "Launching..."
            xcrun devicectl device process launch --device "$DEVICE_ID" org.else-if.acord || true
        fi
        ;;

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