#!/usr/bin/env bash
# fzf package.json script runner with auto-detected package manager.

# ── Locate nearest package.json (walk up) ──────────────────────────
dir=$PWD
pkg=""
while :; do
    if [ -f "$dir/package.json" ]; then
        pkg="$dir/package.json"
        break
    fi
    [ "$dir" = / ] && break
    dir=$(dirname "$dir")
done

if [ -z "$pkg" ]; then
    echo "pj: no package.json found in this tree" >&2
    exit 1
fi
root=$(dirname "$pkg")

# ── Detect package manager ─────────────────────────────────────────
# Priority: packageManager field (corepack) → lockfiles (walking up
# past $root to catch monorepo-root locks) → npm fallback
pm=$(jq -r '.packageManager // empty' "$pkg")
pm=${pm%%@*}

if [ -z "$pm" ]; then
    d=$root
    while [ -z "$pm" ]; do
        if [ -f "$d/bun.lockb" ] || [ -f "$d/bun.lock" ]; then
            pm=bun
        elif [ -f "$d/pnpm-lock.yaml" ]; then
            pm=pnpm
        elif [ -f "$d/yarn.lock" ]; then
            pm=yarn
        elif [ -f "$d/package-lock.json" ]; then
            pm=npm
        fi
        [ "$d" = / ] && break
        d=$(dirname "$d")
    done
    [ -n "$pm" ] || pm=npm
fi

# ── Pick a script ──────────────────────────────────────────────────
script=$(jq -r '.scripts // {} | keys[]' "$pkg" | fzf \
    --prompt="$pm run ❯ " \
    --header="$root" \
    --height=40% --layout=reverse --border \
    --preview="jq -r --arg s {} '.scripts[\$s]' \"$pkg\"" \
    --preview-window=up:2:wrap)

[ -n "$script" ] || exit 0

# ── Run (npm needs `--` to forward extra args) ────────────────────
extra=("$@")
if [ "$pm" = npm ] && [ $# -gt 0 ]; then
    extra=(-- "$@")
fi

# Wrap long-running server scripts in openlogs (live log tail for agents).
# Matches dev/start/serve and namespaced variants like dev:web, start:api.
wrapper=""
if [[ $script =~ ^(dev|start|serve|watch)(:.*)?$ ]]; then
    # Resolve the binary: PATH → mise resolution → mise installs glob
    ol=$(command -v openlogs || true)
    if [ -z "$ol" ] && command -v mise >/dev/null 2>&1; then
        ol=$(mise which openlogs 2>/dev/null || true)
    fi
    if [ -z "$ol" ]; then
        for cand in "$HOME"/.local/share/mise/installs/node/*/bin/openlogs; do
            [ -x "$cand" ] && { ol=$cand; break; }
        done
    fi

    if [ -n "$ol" ] && [ -x "$ol" ]; then
        wrapper=$ol
    else
        echo "pj: openlogs not found, running unwrapped" >&2
    fi
fi

if [ -n "$wrapper" ]; then
    echo "→ $wrapper $pm run $script $*" >&2
    exec "$wrapper" "$pm" run "$script" "${extra[@]}"
else
    echo "→ $pm run $script $*" >&2
    exec "$pm" run "$script" "${extra[@]}"
fi