-
Notifications
You must be signed in to change notification settings - Fork 6
/
bert.rs
184 lines (165 loc) · 5.71 KB
/
bert.rs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
use crate::steins::ai::chain::CACHE_ENG_STR;
use rust_bert::pipelines::conversation::{ ConversationManager, ConversationModel };
use rust_bert::pipelines::question_answering::{ QaInput, QuestionAnsweringModel };
use rust_bert::pipelines::translation::{ Language, TranslationConfig, TranslationModel };
use tch::Device;
use tokio::{task, sync::Mutex };
use std::collections::HashMap;
use uuid::Uuid;
use eyre::Result;
lazy_static! {
pub static ref CONV_MANAGER: Mutex<ConversationManager>
= Mutex::new(ConversationManager::new());
pub static ref CHAT_CONTEXT: Mutex<HashMap<u64, (Uuid, u32, u32)>>
= Mutex::new(HashMap::new());
}
pub async fn en2ru(text: String) -> Result<String> {
if text.is_empty() {
return Ok(String::new());
}
task::spawn_blocking(move || {
let translation_config =
TranslationConfig::new(Language::EnglishToRussian, Device::cuda_if_available());
let model = TranslationModel::new(translation_config)?;
let output = model.translate(&[text.as_str()]);
if output.is_empty() {
error!("Failed to translate with TranslationConfig EnglishToRussian");
Ok(text)
} else {
Ok(output[0].clone())
}
}).await.unwrap()
}
pub async fn ru2en(text: String) -> Result<String> {
if text.is_empty() {
return Ok(String::new());
}
task::spawn_blocking(move || {
let translation_config =
TranslationConfig::new(Language::RussianToEnglish, Device::cuda_if_available());
let model = TranslationModel::new(translation_config)?;
let output = model.translate(&[text.as_str()]);
if output.is_empty() {
error!("Failed to translate with TranslationConfig RussianToEnglish");
Ok(text)
} else {
let translation = &output[0];
Ok(translation.clone())
}
}).await.unwrap()
}
pub async fn ru2en_many(texts: Vec<String>) -> Result<Vec<String>> {
if texts.is_empty() {
return Ok(vec![]);
}
task::spawn_blocking(move || {
let ttt = texts.iter().map(|t| t.as_str()).collect::<Vec<&str>>();
let translation_config =
TranslationConfig::new(Language::RussianToEnglish, Device::cuda_if_available());
let model = TranslationModel::new(translation_config)?;
let output = model.translate(&ttt);
if output.is_empty() {
error!("Failed to translate with TranslationConfig RussianToEnglish");
Ok(Vec::new())
} else {
Ok(output)
}
}).await.unwrap()
}
fn ask_with_cache(q: String, cache: String) -> Result<String> {
// Set-up Question Answering model
let qa_model = QuestionAnsweringModel::new(Default::default())?;
let qa_input = QaInput {
question: q,
context: cache
};
// Get answer
let answers = qa_model.predict(&[qa_input], 1, 32);
if answers.is_empty() {
error!("Failed to ansewer with QuestionAnsweringModel");
// TODO: error should be here
Ok(String::new())
} else {
let my_answers = &answers[0];
// we have several answers (hope they sorted by score)
let answer = &my_answers[0];
Ok(answer.answer.clone())
}
}
pub async fn ask(question: String) -> Result<String> {
let cache_eng_vec = CACHE_ENG_STR.lock().await;
let cache =
if cache_eng_vec.is_empty() {
String::from("Humans imba")
} else {
cache_eng_vec.join(" ")
};
task::spawn_blocking(move || {
ask_with_cache(question, cache)
}).await.unwrap()
}
pub async fn chat(something: String, user_id: u64) -> Result<String> {
let mut conversation_manager = CONV_MANAGER.lock().await;
let mut chat_context = CHAT_CONTEXT.lock().await;
task::spawn_blocking(move || {
let conversation_model = ConversationModel::new(Default::default())?;
let output =
if user_id != 0 {
if let Some((tracking_conversation, passed, x)) = chat_context.get_mut(&user_id) {
if *x > 5 {
*tracking_conversation = conversation_manager.create(&something);
*passed = 0; *x = 0;
conversation_model.generate_responses(&mut conversation_manager)
} else if let Some(found_conversation) = conversation_manager
.get(tracking_conversation) {
let _ = found_conversation.add_user_input(&something);
*passed = 0; *x += 1;
conversation_model.generate_responses(&mut conversation_manager)
} else {
*tracking_conversation = conversation_manager.create(&something);
*passed = 0; *x = 0;
conversation_model.generate_responses(&mut conversation_manager)
}
} else {
chat_context.insert( user_id
, ( conversation_manager.create(&something), 0, 0 )
);
conversation_model.generate_responses(&mut conversation_manager)
}
} else {
conversation_manager.create(&something);
conversation_model.generate_responses(&mut conversation_manager)
};
let out_values = output.values()
.cloned()
.map(str::to_string)
.collect::<Vec<String>>();
if out_values.is_empty() {
error!("Failed to chat with ConversationModel");
// TODO: error should be here
Ok(String::new())
} else {
// just get first
let answer = &out_values[0];
Ok(answer.clone())
}
}).await.unwrap()
}
#[cfg(test)]
mod bert_tests {
use super::*;
#[test]
#[ignore]
fn spell_test() -> Result<(), String> {
let cache = String::from("Humba");
match ask_with_cache(String::from("Humans imba?"), cache) {
Ok(some) => {
if !some.is_empty() {
Ok(())
} else {
Err(String::from("empty output"))
}
}, Err(de) => Err(format!("Failed to get answer {:?}", de))
}
}
}