#!/usr/bin/env bash
# Configure the current shell user's git + tea for the hive-forge.
#
# Sets:
#   - git config --global user.name / user.email
#   - tea login (if `tea` is on PATH)
#   - ~/.netrc entry so `git clone http://...` works without prompting
#
# Usage: forge-login.sh <username> [--email <addr>] [--url <forge-url>]
#
# Prompts for an access token on stdin (paste-and-enter). Generate
# one first with `forge-create-token.sh <username>` or in the web UI
# under Settings → Applications → Generate New Token.
set -euo pipefail

if [ $# -lt 1 ]; then
  echo "usage: $0 <username> [--email <addr>] [--url <forge-url>]" >&2
  exit 2
fi

username="$1"; shift
email="${username}@hive.local"
forge_url="http://localhost:3000"

while [ $# -gt 0 ]; do
  case "$1" in
    --email) email="$2"; shift 2 ;;
    --url)   forge_url="$2"; shift 2 ;;
    *) echo "unknown arg: $1" >&2; exit 2 ;;
  esac
done

# Extract host:port for netrc.
host=$(printf '%s' "$forge_url" | sed -E 's|^https?://||; s|/.*$||; s|:.*$||')

read -r -s -p "forgejo access token for $username (input hidden): " token
echo
if [ -z "$token" ]; then
  echo "no token entered; aborting" >&2
  exit 1
fi

git config --global user.name "$username"
git config --global user.email "$email"
echo "git config: $username <$email>"

# netrc entry — git uses this for HTTP basic auth. 0600 because it
# contains the plaintext token.
netrc="$HOME/.netrc"
touch "$netrc"
chmod 600 "$netrc"
if grep -q "^machine $host" "$netrc" 2>/dev/null; then
  # Remove the old block (machine line + the two following lines).
  sed -i.bak "/^machine $host\$/,+2d" "$netrc"
fi
cat >>"$netrc" <<EOF
machine $host
login $username
password $token
EOF
echo "netrc: wrote $host entry"

if command -v tea >/dev/null 2>&1; then
  mkdir -p "$HOME/.config/tea"
  # tea refuses to add a login with a name that already exists; drop
  # it first so re-running this script is idempotent.
  tea login delete forge 2>/dev/null || true
  tea login add --name forge --url "$forge_url" --token "$token"
  echo "tea: configured 'forge' login"
else
  echo "tea: not on PATH — install pkgs.tea if you want the CLI"
fi