#!/bin/sh
# install.sh — set up Claire locally.
#
# Two independent steps, each idempotent and runnable on its own:
#
#   1. venv + editable install via `uv` — requires `uv` on PATH.
#   2. Symlink the `claire` console script into ~/.local/bin — requires only
#      that `.venv/bin/claire` already exists (built by step 1, or by an
#      earlier run).
#
# Re-running the script always re-creates the symlink if the venv exists,
# even if `uv` is missing from the current PATH (the common partial-install
# case: venv was built in an interactive shell but the symlink step is
# being run from a non-interactive shell without uv on PATH).

set -eu

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

# ---------------------------------------------------------------------------
# Step 1: venv + editable install (skipped gracefully if uv is missing)
# ---------------------------------------------------------------------------

if command -v uv >/dev/null 2>&1; then
    if [ ! -d "$ROOT/.venv" ]; then
        uv venv
    fi
    uv pip install -e ".[dev]"
else
    echo "install.sh: uv not on PATH; skipping venv build." >&2
    echo "  (will only succeed if .venv/bin/claire already exists)" >&2
fi

# ---------------------------------------------------------------------------
# Step 2: symlink — only depends on .venv/bin/claire existing
# ---------------------------------------------------------------------------

TARGET="$ROOT/.venv/bin/claire"
LINK="$HOME/.local/bin/claire"

if [ ! -x "$TARGET" ]; then
    echo "install.sh: $TARGET does not exist; cannot create symlink." >&2
    echo "  install uv and re-run from an interactive shell, or run:" >&2
    echo "    cd $ROOT && uv venv && uv pip install -e ." >&2
    exit 1
fi

mkdir -p "$HOME/.local/bin"
ln -sf "$TARGET" "$LINK"
echo "install.sh: linked $LINK -> $TARGET"
echo "install.sh: ensure ~/.local/bin is on your PATH"