#!/command/with-contenv /usr/bin/bash
# shellcheck shell=bash

declare -r log_prefix="[init-folders]"

declare -r export_dir="/usr/src/paperless/export"
declare -r data_dir="${PAPERLESS_DATA_DIR:-/usr/src/paperless/data}"
declare -r media_root_dir="${PAPERLESS_MEDIA_ROOT:-/usr/src/paperless/media}"
declare -r consume_dir="${PAPERLESS_CONSUMPTION_DIR:-/usr/src/paperless/consume}"
declare -r tmp_dir="${PAPERLESS_SCRATCH_DIR:=/tmp/paperless}"

declare -r main_dirs=(
	"${export_dir}"
	"${data_dir}"
	"${media_root_dir}"
	"${consume_dir}"
	"${tmp_dir}"
)

declare -r extra_dirs=(
	"${main_dirs[@]}"
	"${data_dir}/index"
	"${media_root_dir}/documents"
	"${media_root_dir}/documents/originals"
	"${media_root_dir}/documents/thumbnails"
)

if [[ -n "${USER_IS_NON_ROOT}" ]]; then
	# Non-root mode: Create directories as current user, warn about permission issues
	echo "${log_prefix} Running in non-root mode, checking directories"
	current_uid=$(id --user)
	current_gid=$(id --group)

	for dir in "${extra_dirs[@]}"; do
		if [[ ! -d "${dir}" ]]; then
			mkdir --parents --verbose "${dir}" || echo "${log_prefix} WARNING: Could not create ${dir} - permission denied"
		fi
		# Check permissions on existing directories too
		if [[ -d "${dir}" && ! -w "${dir}" ]]; then
			echo "${log_prefix} WARNING: No write permission to ${dir}"
		fi
	done

	# Warn about ownership issues
	for dir in "${main_dirs[@]}"; do
		if [[ -d "${dir}" ]]; then
			find "${dir}" -not \( -user ${current_uid} -and -group ${current_gid} \) -exec echo "${log_prefix} WARNING: Permission issue on {}: not owned by current user (${current_uid}:${current_gid})" \; 2>/dev/null || echo "${log_prefix} WARNING: Cannot check permissions on ${dir}"
		fi
	done
else
	# Root mode: Create and fix permissions as needed
	echo "${log_prefix} Running with root privileges, adjusting directories and permissions"

	# First create directories
	for dir in "${extra_dirs[@]}"; do
		if [[ ! -d "${dir}" ]]; then
			mkdir --parents --verbose "${dir}"
		fi
	done

	# Then fix permissions on all directories
	for dir in "${main_dirs[@]}"; do
		find "${dir}" -not \( -user paperless -and -group paperless \) -exec chown --changes paperless:paperless {} +
	done
fi