#!/usr/bin/env bash

set -euo pipefail
umask 0002

#
# wp-dev-bootstrap.sh
#
# Usage (called by panel, but can be used manually):
#   wp-dev-bootstrap.sh \
#     --domain example.local \
#     --project-name "Example Project" \
#     --admin-user vdidev \
#     --admin-email dev@example.com \
#     [--theme-starter-repo git@github.com:org/starter.git] \
#     [--theme-remote-origin git@github.com:org/client-theme.git]
#

# Defaults
DOMAIN=""
PROJECT_NAME=""
ADMIN_USER=""
ADMIN_EMAIL=""
THEME_STARTER_REPO=""
THEME_REMOTE_ORIGIN=""

while [[ $# -gt 0 ]]; do
  case "$1" in
    --domain)
      DOMAIN="$2"
      shift 2
      ;;
    --project-name)
      PROJECT_NAME="$2"
      shift 2
      ;;
    --admin-user)
      ADMIN_USER="$2"
      shift 2
      ;;
    --admin-email)
      ADMIN_EMAIL="$2"
      shift 2
      ;;
    --theme-starter-repo)
      THEME_STARTER_REPO="$2"
      shift 2
      ;;
    --theme-remote-origin)
      THEME_REMOTE_ORIGIN="$2"
      shift 2
      ;;
    *)
      echo "Unknown arg: $1" >&2
      exit 1
      ;;
  esac
done

if [[ -z "$DOMAIN" || -z "$PROJECT_NAME" || -z "$ADMIN_USER" || -z "$ADMIN_EMAIL" ]]; then
  echo "Usage: $0 --domain DOMAIN --project-name NAME --admin-user USER --admin-email EMAIL [--theme-starter-repo REPO] [--theme-remote-origin REPO]" >&2
  exit 1
fi

WEBROOT="/var/www/${DOMAIN}/htdocs"

if [[ ! -d "$WEBROOT" ]]; then
  echo "ERROR: Webroot not found: $WEBROOT" >&2
  exit 1
fi

cd "$WEBROOT"

echo "==> Bootstrapping WordPress site"
echo "Domain:        $DOMAIN"
echo "Project name:  $PROJECT_NAME"
echo "Webroot:       $WEBROOT"
echo

# Basic site options
echo "==> Setting basic site options..."
wp option update blogname "$PROJECT_NAME"
wp option update blogdescription "Development site for $PROJECT_NAME"

# Ensure admin user exists (handle 'email already used' case gracefully)
echo "==> Ensuring admin user exists..."
if wp user get "$ADMIN_USER" >/dev/null 2>&1; then
  echo "User $ADMIN_USER already exists."
else
  if wp user list --field=user_email | grep -q "^${ADMIN_EMAIL}\$"; then
    echo "Admin email ${ADMIN_EMAIL} already in use; skipping user create."
  else
    wp user create "$ADMIN_USER" "$ADMIN_EMAIL" --role=administrator --user_pass="$(openssl rand -base64 16)"
    echo "Admin user $ADMIN_USER created with email $ADMIN_EMAIL (random password)."
  fi
fi

# Home / blog pages
echo "==> Setting up Home / News pages & reading options..."
if ! wp post list --post_type=page --field=post_title | grep -q '^Home$'; then
  HOME_ID=$(wp post create --post_type=page --post_title="Home" --post_status=publish --porcelain)
else
  HOME_ID=$(wp post list --post_type=page --field=ID --title="Home" | head -n1)
fi

if ! wp post list --post_type=page --field=post_title | grep -q '^News$'; then
  NEWS_ID=$(wp post create --post_type=page --post_title="News" --post_status=publish --porcelain)
else
  NEWS_ID=$(wp post list --post_type=page --field=ID --title="News" | head -n1)
fi

wp option update show_on_front 'page'
wp option update page_on_front "$HOME_ID"
wp option update page_for_posts "$NEWS_ID"

# Dev plugins
echo "==> Installing standard dev plugins..."
DEV_PLUGINS=(
  query-monitor
  user-switching
  debug-bar
)

for PLUGIN in "${DEV_PLUGINS[@]}"; do
  echo "Installing plugin: $PLUGIN"
  wp plugin install "$PLUGIN" --activate || true
done

# Theme bootstrap
if [[ -n "$THEME_STARTER_REPO" ]]; then
  echo "==> Bootstrapping theme from starter repo..."
  TMP_DIR=$(mktemp -d)
  git clone "$THEME_STARTER_REPO" "$TMP_DIR"

  # Heuristic: assume theme lives directly under TMP_DIR or a 'theme' subdir
  THEME_SRC=""
  if [[ -f "$TMP_DIR/style.css" ]]; then
    THEME_SRC="$TMP_DIR"
  elif [[ -d "$TMP_DIR/theme" ]]; then
    THEME_SRC="$TMP_DIR/theme"
  else
    # First directory under repo
    FIRST_DIR=$(find "$TMP_DIR" -maxdepth 2 -type d -mindepth 1 | head -n1)
    THEME_SRC="$FIRST_DIR"
  fi

  if [[ -z "$THEME_SRC" || ! -d "$THEME_SRC" ]]; then
    echo "Theme source not found under $TMP_DIR; skipping theme copy." >&2
  else
    THEMES_DIR="${WEBROOT}/wp-content/themes"
    mkdir -p "$THEMES_DIR"

    # Slug from project name
    THEME_SLUG=$(echo "$PROJECT_NAME" | tr '[:upper:]' '[:lower:]' | tr -cs 'a-z0-9' '-')
    [[ -z "$THEME_SLUG" ]] && THEME_SLUG="custom-theme"

    TARGET_THEME_DIR="${THEMES_DIR}/${THEME_SLUG}"

    if [[ -d "$TARGET_THEME_DIR" ]]; then
      echo "Target theme dir already exists ($TARGET_THEME_DIR); skipping copy."
    else
      cp -a "$THEME_SRC" "$TARGET_THEME_DIR"
      echo "Theme copied to $TARGET_THEME_DIR"

      # Reset git and point to remote if requested
      if [[ -d "$TARGET_THEME_DIR/.git" ]]; then
        (cd "$TARGET_THEME_DIR" && rm -rf .git)
      fi

      if [[ -n "$THEME_REMOTE_ORIGIN" ]]; then
        (
          cd "$TARGET_THEME_DIR"
          git init
          git remote add origin "$THEME_REMOTE_ORIGIN"
        )
        echo "Initialized git repo for theme with remote $THEME_REMOTE_ORIGIN"
      fi

      # Try to activate it
      THEME_STYLESHEET=$(basename "$TARGET_THEME_DIR")
      wp theme activate "$THEME_STYLESHEET" || echo "Theme activation failed; check theme headers."
    fi
  fi

  rm -rf "$TMP_DIR"
else
  echo "==> Theme starter repo not provided; skipping theme bootstrap."
fi

echo "==> Bootstrap complete."