#!/usr/bin/env bash
# update-suite.sh — ensure taler-monitoring code is latest from Forgejo.
#
# Local config (NEVER overwritten by git):
#   ${XDG_CONFIG_HOME:-$HOME/.config}/taler-monitoring/env
#
# Env overrides (also settable in that file):
#   SUITE_GIT_URL   default https://git.hacktivism.ch/hernani/koopa-admin-log.git
#   SUITE_GIT_REF   default main
#   SUITE_DIR       default $HOME/src/koopa-admin-log  (or $HOME/koopa-admin-log)
#   SUITE_UPDATE_MODE  ff (default) | reset  (reset = hard to origin/REF)
#
set -uo pipefail

CFG_DIR="${XDG_CONFIG_HOME:-$HOME/.config}/taler-monitoring"
ENV_FILE="${TALER_MONITORING_ENV:-$CFG_DIR/env}"
# When sourced from run-host-report.sh the env file is already loaded and
# wrapper PHASES/HTML_* must not be clobbered. Only load here if needed.
if [ -f "$ENV_FILE" ] && [ "${_TALER_MON_ENV_LOADED:-0}" != "1" ]; then
  # shellcheck disable=SC1090
  set -a
  # shellcheck source=/dev/null
  source "$ENV_FILE"
  set +a
fi

SUITE_GIT_URL="${SUITE_GIT_URL:-https://git.hacktivism.ch/hernani/koopa-admin-log.git}"
SUITE_GIT_REF="${SUITE_GIT_REF:-main}"
# Host agents default to reset so "always latest from Forgejo" wins over local
# diverged trees. Override with SUITE_UPDATE_MODE=ff for careful pulls.
SUITE_UPDATE_MODE="${SUITE_UPDATE_MODE:-reset}"

if [ -z "${SUITE_DIR:-}" ]; then
  if [ -d "$HOME/src/koopa-admin-log/.git" ]; then
    SUITE_DIR="$HOME/src/koopa-admin-log"
  elif [ -d "$HOME/koopa-admin-log/.git" ]; then
    SUITE_DIR="$HOME/koopa-admin-log"
  else
    SUITE_DIR="$HOME/src/koopa-admin-log"
  fi
fi

export SUITE_DIR

mkdir -p "$(dirname "$SUITE_DIR")" "$CFG_DIR"

if [ ! -d "$SUITE_DIR/.git" ]; then
  echo "clone $SUITE_GIT_URL → $SUITE_DIR"
  git clone --branch "$SUITE_GIT_REF" "$SUITE_GIT_URL" "$SUITE_DIR" \
    || git clone "$SUITE_GIT_URL" "$SUITE_DIR"
fi

cd "$SUITE_DIR" || exit 1
git remote set-url origin "$SUITE_GIT_URL" 2>/dev/null \
  || git remote add origin "$SUITE_GIT_URL" 2>/dev/null || true

echo "fetch origin ($SUITE_GIT_REF) …"
if ! git fetch --tags origin 2>&1; then
  echo "WARN: git fetch failed — using existing tree at $SUITE_DIR" >&2
  git rev-parse HEAD 2>/dev/null || true
  return 0 2>/dev/null || exit 0
fi

case "$SUITE_UPDATE_MODE" in
  reset)
    git checkout -B "$SUITE_GIT_REF" "origin/$SUITE_GIT_REF" 2>/dev/null \
      || git checkout -B "$SUITE_GIT_REF" "FETCH_HEAD"
    git reset --hard "origin/$SUITE_GIT_REF" 2>/dev/null \
      || git reset --hard FETCH_HEAD
    ;;
  *)
    git checkout "$SUITE_GIT_REF" 2>/dev/null || git checkout -B "$SUITE_GIT_REF" "origin/$SUITE_GIT_REF" 2>/dev/null || true
    if ! git pull --ff-only origin "$SUITE_GIT_REF" 2>&1; then
      echo "WARN: ff-only pull failed — try SUITE_UPDATE_MODE=reset or fix local commits" >&2
    fi
    ;;
esac

COMMIT=$(git rev-parse HEAD)
COMMIT_SHORT=$(git rev-parse --short=12 HEAD)
# Forgejo web UI
SOURCE_REPO_WEB="${SOURCE_REPO_WEB:-https://git.hacktivism.ch/hernani/koopa-admin-log}"
COMMIT_URL="${SOURCE_REPO_WEB}/src/commit/${COMMIT}"
export COMMIT COMMIT_SHORT COMMIT_URL SOURCE_REPO_WEB

echo "suite @ $COMMIT_SHORT  $COMMIT_URL"
echo "  dir=$SUITE_DIR"
echo "  config=$ENV_FILE (not touched by git)"
echo "  note: always latest = origin/${SUITE_GIT_REF} on git.hacktivism.ch (push local work there)"

# Symlink convenience path if missing or not a git clone
if [ -d "$SUITE_DIR/.git" ]; then
  if [ ! -e "$HOME/koopa-admin-log" ]; then
    ln -sfn "$SUITE_DIR" "$HOME/koopa-admin-log" 2>/dev/null || true
  elif [ -L "$HOME/koopa-admin-log" ]; then
    ln -sfn "$SUITE_DIR" "$HOME/koopa-admin-log" 2>/dev/null || true
  fi
fi

# Make suite scripts executable after reset
if [ -d "$SUITE_DIR/scripts/taler-monitoring" ]; then
  chmod +x \
    "$SUITE_DIR"/scripts/taler-monitoring/taler-monitoring.sh \
    "$SUITE_DIR"/scripts/taler-monitoring/check_*.sh \
    "$SUITE_DIR"/scripts/taler-monitoring/host-agent/*.sh \
    "$SUITE_DIR"/scripts/taler-monitoring/site-gen/*.sh \
    "$SUITE_DIR"/scripts/taler-monitoring/site-gen/*.py \
    2>/dev/null || true
fi