-- ************************************************************************
--
--    The sample handler
--    Copyright 2019 by Sean Conner.  All Rights Reserved.
--
--    This program is free software: you can redistribute it and/or modify
--    it under the terms of the GNU General Public License as published by
--    the Free Software Foundation, either version 3 of the License, or
--    (at your option) any later version.
--
--    This program is distributed in the hope that it will be useful,
--    but WITHOUT ANY WARRANTY; without even the implied warranty of
--    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
--    GNU General Public License for more details.
--
--    You should have received a copy of the GNU General Public License
--    along with this program.  If not, see <http://www.gnu.org/licenses/>.
--
--    Comments, questions and criticisms can be sent to: sean@conman.org
--
-- ************************************************************************
-- luacheck: globals init handler fini
-- luacheck: ignore 611

local syslog = require "org.conman.syslog"
local string = require "string"

_ENV = {}

-- ************************************************************************
-- Usage:       okay[,err] = sample.init(iconf,hconf,gconf)
-- Desc:        Do any initialization of the module
-- Input:       iconf (table) instance configuration block
--              hconf (table) host configuation block
--              gconf (table) global configuration block
-- Return:      okay (boolean) true if okay, false if any error
--              err (string) error message
--
-- NOTE:        This function is optional.
--              Also, any information local to an instance can be stored
--              in the passed in configuration block.
--              Not all modules will use the hconf or gconf block.
-- ************************************************************************

function init(iconf)
  syslog('debug',"init(%s) path pattern=%q",iconf.module,iconf.path)
  return true
end

-- ************************************************************************
-- Usage:       status = sample.handler(conf,auth,loc,pathinfo,ios)
-- Desc:        Handle the request
-- Input:       conf (table) configuration block from configuration file
--              auth (table) authentication information
--              loc (table) Broken down URL from the request
--              pathinfo (string) rest of path string
--              ios (object/iostream) Input/Output stream
-- Return:      status (integer) Gemini status code
-- ************************************************************************

function handler(conf,auth,loc,pathinfo,ios)
  ios:write(
        string.format(
                "20 text/plain; charset=%s; lang=%s\r\n",
                conf.charset,
                conf.language
        ),
        string.format([[
conf.path=%q
conf.module=%q
auth.issuer=%q
auth.subject=%q
loc.host=%s
loc.port=%d
loc.path=%q
loc.query=%q
pathinfo=%q
]],
        conf.path,
        conf.module,
        auth.issuer  or "",
        auth.subject or "",
        loc.host,
        loc.port,
        loc.path,
        loc.query or "",
        pathinfo  or ""
  ))
  return 20
end

-- ************************************************************************
-- Usage:       okay,err = sample.fini(conf)
-- Desc;        Cleanup resources for module
-- Input:       conf (table) configuration block from configuration file
-- Return:      okay (boolean) true if okay, false if any error
--              err (string) error message
--
-- NOTE:        This function is optional.
-- ************************************************************************

function fini(conf)
  syslog('debug',"fini(%s) path pattern=%q",conf.module,conf.path)
  return true
end

-- ************************************************************************

return _ENV