#!/bin/sh
# Purser installer — the /purser multi-agent implementation workflow for Claude Code.
#
#   curl -fsSL https://get-purser.pages.dev/install.sh | sh
#
# Installs a single workflow file into ~/.claude/workflows/. No Node, no clone,
# no npm. The source repo stays private; only the built purser.js is served here.
# POSIX sh.
set -eu

BASE="https://get-purser.pages.dev"
DEST="${CLAUDE_WORKFLOWS_DIR:-$HOME/.claude/workflows}"

# Claude Code keeps its config under ~/.claude. Warn, but don't block, if absent.
if [ ! -d "$HOME/.claude" ]; then
  echo "purser: ~/.claude not found — is Claude Code installed?"
  echo "        Get it first:  https://claude.com/claude-code"
  echo "        (continuing anyway and creating $DEST)"
fi

mkdir -p "$DEST"

for f in purser.js PURSER.md; do
  url="$BASE/$f"
  echo "Downloading $f ..."
  tmp=$(mktemp)
  if ! curl -fsSL "$url" -o "$tmp"; then
    rm -f "$tmp"
    echo "purser: download failed — $url"
    echo "        (could not reach the host; check your connection)."
    exit 1
  fi
  mv "$tmp" "$DEST/$f"
done

echo ""
echo "OK  purser installed -> $DEST/purser.js"
echo ""
echo "    In any Claude Code session, inside a git repo:"
echo "      /purser <task>                build it: scout, plan, implement, review, PR"
echo "      /purser --quote <task>        preview the plan + cost, build nothing"
echo "      /purser --explain <task>      + learn the system design of what you build"
echo ""
echo "    Docs: $DEST/PURSER.md"
echo "    Update anytime by re-running this one-liner."