#!/bin/bash
# dnc-kitty-launcher - Launch kitty with container context

find_dnc_file() {
    local dir="$PWD"
    while [ "$dir" != "/" ]; do
        if [ -f "$dir/.dnc" ]; then
            echo "$dir/.dnc"
            return
        fi
        dir="$(dirname "$dir")"
    done
}

dnc_file=$(find_dnc_file)
if [ -z "$dnc_file" ]; then
    echo "Error: .dnc file not found. Run 'dnc setup' first." >&2
    exit 1
fi

container=""
dnc_dir="$(dirname "$dnc_file")"
while IFS= read -r line; do
    case "$line" in
        container*)
            container="$(echo "$line" | cut -d= -f2 | sed 's/^[[:space:]]*//;s/[[:space:]]*$//')"
            ;;
    esac
done < "$dnc_file"

if [ -z "$container" ]; then
    echo "Error: container= not found in $dnc_file" >&2
    exit 1
fi

container_status=$(docker inspect --format='{{.State.Status}}' "$container" 2>/dev/null || true)
if [ "$container_status" != "running" ]; then
    echo "Starting container $container..." >&2
    docker start "$container" >/dev/null
fi

tmpdir=$(mktemp -d -t dnc-kitty-XXXXXX)
cleanup() { rm -rf "$tmpdir"; }
trap cleanup EXIT

uid=$(id -u)

container_home=$(docker exec "$container" sh -c "
    user_name=\$(getent passwd $uid | cut -d: -f1 2>/dev/null || echo '')
    if [ -z \"\$user_name\" ]; then
        echo /root
    else
        eval echo ~\$user_name
    fi
")

config_src="$container_home/.config/kitty"
docker cp "$container:$config_src/." "$tmpdir/" 2>/dev/null || true

if [ -x "/opt/dnc/kitty/bin/kitty" ]; then
    kitty="/opt/dnc/kitty/bin/kitty"
elif command -v kitty >/dev/null 2>&1; then
    kitty="kitty"
else
    echo "Error: kitty not found (not installed and no system kitty)" >&2
    exit 1
fi

mkdir -p "$tmpdir"

if [ -x "/opt/dnc/libexec/dnc-exec" ]; then
    dnc_exec="/opt/dnc/libexec/dnc-exec"
else
    script_dir="$(cd "$(dirname "$0")" && pwd)"
    dnc_exec="$script_dir/dnc-exec"
fi

if [ -f "$tmpdir/kitty.conf" ]; then
    echo "" >> "$tmpdir/kitty.conf"
    echo "# dnc: all tabs go through docker exec" >> "$tmpdir/kitty.conf"
else
    :
fi

echo "shell $dnc_exec" >> "$tmpdir/kitty.conf"

export KITTY_CONFIG_DIRECTORY="$tmpdir"
export DNC_CONTAINER="$container"

cd "$dnc_dir" || exit 1

exec "$kitty" "$@"