#!/bin/bash

#=================================================
# COMMON VARIABLES
#=================================================

#=================================================
# PERSONAL HELPERS
#=================================================

#=================================================
# EXPERIMENTAL HELPERS
#=================================================

#=================================================
# FUTURE OFFICIAL HELPERS
#=================================================

# Check if a permission exists
#
# While waiting for this new helper https://github.com/YunoHost/yunohost/pull/905
# We have to use another one because the new helper use a new YunoHost command, not available for now.
#
# usage: ynh_permission_has_user --permission=permission --user=user
# | arg: -p, --permission - the permission to check
# | arg: -u, --user - the user seek in the permission
#
# example: ynh_permission_has_user --permission=main --user=visitors
#
# Requires YunoHost version 3.7.1 or higher.
ynh_permission_has_user() {
    local legacy_args=pu
    # Declare an array to define the options of this helper.
    declare -Ar args_array=( [p]=permission= [u]=user= )
    local permission
    local user
    # Manage arguments with getopts
    ynh_handle_getopts_args "$@"

    if ! ynh_permission_exists --permission=$permission
    then
        return 1
    fi

    # List all permissions
    # Filter only the required permission with a multiline sed (Here a cut from the permission to the next one), remove the url and his value 
    perm="$(yunohost user permission list --full --output-as plain | sed --quiet "/^#$app.$permission/,/^#[[:alnum:]]/p" | sed "/^##url/,+1d")"
    # Remove all lines starting by # (got from the plain output before)
    allowed_users="$(echo "$perm" | grep --invert-match '^#')"
    # Grep the list of users an return the result if the user is indeed into the list
    echo "$allowed_users" | grep --quiet --word "$user"
}