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-- Gemeinschaft 5 module: ivr class
-- (c) AMOOMA GmbH 2013
--
module(...,package.seeall)
Ivr = {}
-- create ivr ivr ;)
function Ivr.new(self, arg)
arg = arg or {}
ivr = arg.ivr or {}
setmetatable(ivr, self);
self.__index = self;
self.class = 'ivr';
self.log = arg.log;
self.caller = arg.caller;
self.dtmf_threshold = arg.dtmf_threshold or 500;
return ivr;
end
function Ivr.ivr_break(self)
return self.exit or not self.caller:ready();
end
function Ivr.ivr_phrase(self, phrase, keys, timeout, ivr_repeat, phrase_data)
ivr_repeat = ivr_repeat or 3;
timeout = timeout or 30;
self.digit = '';
self.exit = false;
self.break_keys = {};
local query_keys = {};
for index=1, #keys do
if type(keys[index]) == 'table' then
if tostring(keys[index].key) ~= '' then
table.insert(query_keys, keys[index].key);
end
self.break_keys[keys[index].key] = keys[index];
else
if tostring(keys[index]) ~= '' then
table.insert(query_keys, keys[index]);
end
self.break_keys[keys[index]] = true;
end
end
global_callback:callback('dtmf', 'ivr_ivr_phrase', self.ivr_phrase_dtmf, self);
local continue = true;
for index=0, ivr_repeat do
continue = self:ivr_break() or self.caller.session:sayPhrase(phrase, phrase_data or table.concat(query_keys, ':'));
continue = self:ivr_break() or self.caller:sleep(timeout * 1000);
if self:ivr_break() then
break;
end
end
global_callback:callback_unset('dtmf', 'ivr_ivr_phrase');
if type(self.break_keys[self.digit]) == 'table' then
return self.digit, self.break_keys[self.digit];
end
return self.digit;
end
function Ivr.ivr_phrase_dtmf(self, dtmf)
if self.break_keys[dtmf.digit] then
self.digit = dtmf.digit;
self.exit = true;
return false;
end
end
function Ivr.read_phrase(self, phrase, phrase_data, max_keys, min_keys, timeout, key_terminator)
self.max_keys = max_keys or 64;
self.min_keys = min_keys or 1;
self.key_terminator = key_terminator or '#';
self.digits = '';
self.exit = false;
timeout = timeout or 30;
global_callback:callback('dtmf', 'ivr_read_phrase', self.read_phrase_dtmf, self);
local continue = self:ivr_break() or self.caller.session:sayPhrase(phrase, phrase_data or key_terminator or '');
continue = self:ivr_break() or self.caller:sleep(timeout * 1000);
global_callback:callback_unset('dtmf', 'ivr_read_phrase');
return self.digits;
end
function Ivr.read_phrase_dtmf(self, dtmf)
if dtmf.duration < self.dtmf_threshold then
return nil;
end
if self.key_terminator == dtmf.digit then
self.exit = true;
return false;
end
self.digits = self.digits .. dtmf.digit;
end
function Ivr.check_pin(self, phrase_enter, phrase_incorrect, pin, pin_timeout, pin_repeat, key_terminator)
if not pin then
return nil;
end
self.exit = false;
pin_timeout = pin_timeout or 30;
pin_repeat = pin_repeat or 3;
key_terminator = key_terminator or '#';
local digits = '';
for i = 1, pin_repeat do
if digits == pin then
self.caller:send_display('PIN: OK');
break;
elseif digits ~= "" then
self.caller:send_display('PIN: wrong');
self.caller.session:sayPhrase(phrase_incorrect, '');
elseif self:ivr_break() then
break;
end
self.caller:send_display('Enter PIN');
digits = ivr:read_phrase(phrase_enter, nil, 0, pin:len() + 1, pin_timeout, key_terminator);
end
if digits ~= pin then
self.caller:send_display('PIN: wrong');
self.caller.session:sayPhrase(phrase_incorrect, '');
return false
end
self.caller:send_display('PIN: OK');
return true;
end
function Ivr.record(self, file_name, beep, phrase_record, phrase_too_short, record_length_max, record_length_min, record_repeat, silence_level, silence_lenght_abort)
local duration = nil;
for index=1, record_repeat do
if (duration and duration >= record_length_min) or not self.caller:ready() then
break;
elseif duration then
self.caller:send_display('Recording too short');
if phrase_too_short then
self.caller.session:sayPhrase(phrase_too_short);
end
end
if phrase_record then
self.caller.session:sayPhrase(phrase_record);
end
if beep then
self.caller:playback(beep);
end
self.caller:send_display('Recording...');
local result = self.caller.session:recordFile(file_name, record_length_max, silence_level, silence_lenght_abort);
duration = self.caller:to_i('record_seconds');
end
return duration or 0;
end
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