#!/bin/sh
# Symlink every skill and steering module of this repo into ~/.kiro.
#
# The script is idempotent. A link that already points at this repo is
# left alone. A link that points elsewhere, or a real directory with the
# same name, is reported and skipped, so the script never overwrites work
# that this repo does not own.
#
# Usage:
#   ./install.sh            Install into ~/.kiro.
#   KIRO_HOME=/x ./install.sh   Install into /x instead.
#
# Exit status: 0 when every asset is linked, 1 when at least one was skipped.

set -eu

repo=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)
kiro=${KIRO_HOME:-"$HOME/.kiro"}
status=0

link_asset() {
    # $1: asset type directory (skills or steering)
    # $2: asset directory inside the repo
    type=$1
    src=$2
    name=$(basename -- "$src")
    dest_dir="$kiro/$type"
    dest="$dest_dir/$name"

    mkdir -p -- "$dest_dir"

    if [ -L "$dest" ]; then
        target=$(readlink -- "$dest")
        if [ "$target" = "$src" ]; then
            echo "ok       $dest"
        else
            echo "skip     $dest -> $target (not this repo)" >&2
            status=1
        fi
    elif [ -e "$dest" ]; then
        echo "skip     $dest exists and is not a symlink" >&2
        status=1
    else
        ln -s -- "$src" "$dest"
        echo "linked   $dest"
    fi
}

for type in skills steering; do
    for src in "$repo/$type"/*/; do
        [ -d "$src" ] || continue
        link_asset "$type" "${src%/}"
    done
done

exit "$status"