#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source /usr/share/yunohost/helpers

#=================================================
# RETRIEVE ARGUMENTS
#=================================================

app=$YNH_APP_INSTANCE_NAME

final_path=$(ynh_app_setting_get --app=$app --key=final_path)

#=================================================
# SPECIFIC CODE
#=================================================
# DECLARE GENERIC FUNCTION
#=================================================

config_file="$final_path/lutim.conf"

get_config_value() {
    option_name="$1"
    # Get the value of this option in the config file
    grep "$option_name *=>" "$config_file" | cut -d'>' -f2 | sed s'/ //g' | cut -d',' -f1
}

#=================================================
# LOAD VALUES
#=================================================

# Load the real value from the app config or elsewhere.
# Then get the value from the form.
# If the form has a value for a variable, take the value from the form,
# Otherwise, keep the value from the app config.

# always_encrypt
old_always_encrypt="$(get_config_value always_encrypt)"
always_encrypt="${YNH_CONFIG_MAIN_CONFIGURATION_ALWAYS_ENCRYPT:-$old_always_encrypt}"

# antiflood
old_antiflood="$(get_config_value anti_flood_delay)"
antiflood="${YNH_CONFIG_MAIN_CONFIGURATION_ANTIFLOOD:-$old_antiflood}"

# delay
old_delay="$(get_config_value default_delay)"
if [ $old_delay -eq 0 ]; then
    old_delay=None
elif [ $old_delay -eq 1 ]; then
    old_delay=Day
elif [ $old_delay -eq 7 ]; then
    old_delay=Week
elif [ $old_delay -eq 30 ]; then
    old_delay=Month
else
    old_delay=Year
fi
delay="${YNH_CONFIG_MAIN_CONFIGURATION_DELAY:-$old_delay}"

# Overwrite settings.json file
old_overwrite_settings="$(ynh_app_setting_get --app=$app --key=overwrite_settings)"
overwrite_settings="${YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_SETTINGS:-$old_overwrite_settings}"

# Overwrite nginx configuration
old_overwrite_nginx="$(ynh_app_setting_get --app=$app --key=overwrite_nginx)"
overwrite_nginx="${YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_NGINX:-$old_overwrite_nginx}"

# Overwrite systemd configuration
old_overwrite_systemd="$(ynh_app_setting_get --app=$app --key=overwrite_systemd)"
overwrite_systemd="${YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_SYSTEMD:-$old_overwrite_systemd}"

# Type of admin mail configuration
old_admin_mail_html="$(ynh_app_setting_get --app=$app --key=admin_mail_html)"
admin_mail_html="${YNH_CONFIG_MAIN_GLOBAL_CONFIG_EMAIL_TYPE:-$old_admin_mail_html}"

#=================================================
# SHOW_CONFIG FUNCTION FOR 'SHOW' COMMAND
#=================================================

show_config() {
    # here you are supposed to read some config file/database/other then print the values
    # ynh_return "YNH_CONFIG_${PANEL_ID}_${SECTION_ID}_${OPTION_ID}=value"

    ynh_return "YNH_CONFIG_MAIN_CONFIGURATION_ALWAYS_ENCRYPT=$always_encrypt"
    ynh_return "YNH_CONFIG_MAIN_CONFIGURATION_ANTIFLOOD=$antiflood"
    ynh_return "YNH_CONFIG_MAIN_CONFIGURATION_DELAY=$delay"

    ynh_return "YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_SETTINGS=$overwrite_settings"
    ynh_return "YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_NGINX=$overwrite_nginx"
    ynh_return "YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_SYSTEMD=$overwrite_systemd"

    ynh_return "YNH_CONFIG_MAIN_GLOBAL_CONFIG_EMAIL_TYPE=$admin_mail_html"
}

#=================================================
# MODIFY THE CONFIGURATION
#=================================================

apply_config() {

    #=================================================
    # MODIFY LUTIM CONFIGURATION
    #=================================================

    restart_lutim=0

    # Change configuration if needed
    # always_encrypt
    if [ "$always_encrypt" != "$old_always_encrypt" ]
    then
        ynh_replace_string --match_string=".*always_encrypt *=>.*" --replace_string="    always_encrypt    => $always_encrypt," --target_file="$config_file"
        restart_lutim=1
    fi

    # antiflood
    if [ "$antiflood" != "$old_antiflood" ]
    then
        ynh_replace_string --match_string=".*anti_flood_delay *=>.*" --replace_string="    anti_flood_delay  => $antiflood," --target_file="$config_file"
        # Disable anti_flood_delay if the delay is 0
        if [ $antiflood = 0 ]; then
            ynh_replace_string --match_string="\(anti_flood_delay *=>.*\)" --replace_string="#\1" --target_file="$config_file"
        fi
        ynh_app_setting_set --app=$app --key=antiflood --value="$antiflood"
        restart_lutim=1
    fi

    # delay
    if [ "$delay" != "$old_delay" ]
    then
        if [ $delay = None ]; then
            delay=0
        elif [ $delay = Day ]; then
            delay=1
        elif [ $delay = Week ]; then
            delay=7
        elif [ $delay = Month ]; then
            delay=30
        else
            delay=360
        fi
        ynh_replace_string --match_string=".*default_delay *=>.*" --replace_string="    default_delay     => $delay," --target_file="$config_file"
        ynh_app_setting_set --app=$app --key=delay --value="$delay"
        restart_lutim=1
    fi

    if [ $restart_lutim -eq 1 ]
    then
        # Wait for lutim to be fully started
        ynh_systemd_action --action=restart --line_match="Manager.*started" --log_path="/var/log/$app/production.log" --timeout="120"
    fi

    #=================================================
    # MODIFY OVERWRITTING SETTINGS
    #=================================================

    # Set overwrite_settings
    ynh_app_setting_set --app=$app --key=overwrite_settings --value="$overwrite_settings"
    # Set overwrite_nginx
    ynh_app_setting_set --app=$app --key=overwrite_nginx --value="$overwrite_nginx"
    # Set overwrite_systemd
    ynh_app_setting_set --app=$app --key=overwrite_systemd --value="$overwrite_systemd"

    #=================================================
    # MODIFY EMAIL SETTING
    #=================================================

    # Set admin_mail_html
    ynh_app_setting_set --app=$app --key=admin_mail_html --value="$admin_mail_html"
}

#=================================================
# GENERIC FINALIZATION
#=================================================
# SELECT THE ACTION FOLLOWING THE GIVEN ARGUMENT
#=================================================

case $1 in
    show) show_config;;
    apply) apply_config;;
esac