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//
// Copyright 2025 Formata, Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
mod ops;
use ops::{prompt_str};
use std::{ops::{Deref, DerefMut}, sync::Arc};
use arcstr::{literal, ArcStr};
use imbl::Vector;
use lazy_static::lazy_static;
use serde::{Deserialize, Serialize};
use crate::{model::{prompt::ops::{prompt_any, prompt_at, prompt_clear, prompt_empty, prompt_insert, prompt_len, prompt_pop, prompt_prompts, prompt_push, prompt_remove, prompt_replace, prompt_reverse, prompt_set_tag, prompt_set_text, prompt_tag, prompt_text}, Graph}, runtime::{instruction::{Instruction, Instructions}, proc::ProcEnv, Error, Num, Prompt, Val, ValRef, Variable}};
/// Prompt lib.
pub(self) const PROMPT_LIB: ArcStr = literal!("Prompt");
/// Add the prompt lib to a graph.
pub fn insert_prompt_lib(graph: &mut Graph) {
graph.insert_libfunc(prompt_str());
graph.insert_libfunc(prompt_text());
graph.insert_libfunc(prompt_tag());
graph.insert_libfunc(prompt_prompts());
graph.insert_libfunc(prompt_set_text());
graph.insert_libfunc(prompt_set_tag());
graph.insert_libfunc(prompt_len());
graph.insert_libfunc(prompt_at());
graph.insert_libfunc(prompt_any());
graph.insert_libfunc(prompt_empty());
graph.insert_libfunc(prompt_push());
graph.insert_libfunc(prompt_pop());
graph.insert_libfunc(prompt_clear());
graph.insert_libfunc(prompt_reverse());
graph.insert_libfunc(prompt_remove());
graph.insert_libfunc(prompt_insert());
graph.insert_libfunc(prompt_replace());
}
lazy_static! {
pub static ref PROMPT_STR: Arc<dyn Instruction> = Arc::new(PromptIns::Str);
pub static ref PROMPT_TEXT: Arc<dyn Instruction> = Arc::new(PromptIns::Text);
pub static ref PROMPT_TAG: Arc<dyn Instruction> = Arc::new(PromptIns::Tag);
pub static ref PROMPT_PROMPTS: Arc<dyn Instruction> = Arc::new(PromptIns::Prompts);
pub static ref PROMPT_SET_TEXT: Arc<dyn Instruction> = Arc::new(PromptIns::SetText);
pub static ref PROMPT_SET_TAG: Arc<dyn Instruction> = Arc::new(PromptIns::SetTag);
pub static ref PROMPT_LEN: Arc<dyn Instruction> = Arc::new(PromptIns::Len);
pub static ref PROMPT_AT: Arc<dyn Instruction> = Arc::new(PromptIns::At);
pub static ref PROMPT_EMPTY: Arc<dyn Instruction> = Arc::new(PromptIns::Empty);
pub static ref PROMPT_ANY: Arc<dyn Instruction> = Arc::new(PromptIns::Any);
pub static ref PROMPT_PUSH: Arc<dyn Instruction> = Arc::new(PromptIns::Push);
pub static ref PROMPT_POP: Arc<dyn Instruction> = Arc::new(PromptIns::Pop);
pub static ref PROMPT_CLEAR: Arc<dyn Instruction> = Arc::new(PromptIns::Clear);
pub static ref PROMPT_REVERSE: Arc<dyn Instruction> = Arc::new(PromptIns::Reverse);
pub static ref PROMPT_REMOVE: Arc<dyn Instruction> = Arc::new(PromptIns::Remove);
pub static ref PROMPT_INSERT: Arc<dyn Instruction> = Arc::new(PromptIns::Insert);
pub static ref PROMPT_REPLACE: Arc<dyn Instruction> = Arc::new(PromptIns::Replace);
}
#[derive(Debug, Clone, Serialize, Deserialize)]
/// Prompt instructions.
pub enum PromptIns {
Str,
Text,
Tag,
Prompts,
SetText,
SetTag, // set to null to clear tag
Len,
At,
Empty,
Any,
Push,
Pop,
Clear,
Reverse,
Remove, // by index
Insert, // at index
Replace, // replace at index
}
#[typetag::serde(name = "PromptIns")]
impl Instruction for PromptIns {
fn exec(&self, env: &mut ProcEnv, graph: &mut Graph) -> Result<Option<Instructions>, Error> {
match self {
Self::Str => {
if let Some(var) = env.stack.pop() {
match var.val.read().deref() {
Val::Prompt(prompt) => {
env.stack.push(Variable::val(Val::Str(prompt.to_string().into())));
return Ok(None);
},
_ => {}
}
}
Err(Error::PromptStr)
},
Self::Text => {
if let Some(var) = env.stack.pop() {
match var.val.read().deref() {
Val::Prompt(prompt) => {
env.stack.push(Variable::val(Val::Str(prompt.text.clone())));
return Ok(None);
},
_ => {}
}
}
Err(Error::PromptText)
},
Self::Tag => {
if let Some(var) = env.stack.pop() {
match var.val.read().deref() {
Val::Prompt(prompt) => {
if let Some(tag) = &prompt.tag {
env.stack.push(Variable::val(Val::Str(tag.clone())));
} else {
env.stack.push(Variable::val(Val::Null));
}
return Ok(None);
},
_ => {}
}
}
Err(Error::PromptTag)
},
Self::Prompts => {
if let Some(var) = env.stack.pop() {
match var.val.read().deref() {
Val::Prompt(prompt) => {
let mut list = Vector::default();
for sub in &prompt.prompts {
list.push_back(ValRef::new(Val::Prompt(sub.clone())));
}
env.stack.push(Variable::val(Val::List(list)));
return Ok(None);
},
_ => {}
}
}
Err(Error::PromptPrompts)
},
Self::SetText => {
if let Some(text_var) = env.stack.pop() {
if let Some(prompt) = env.stack.pop() {
let text = text_var.val.read().print(&graph);
match prompt.val.write().deref_mut() {
Val::Prompt(prompt) => {
prompt.text = text.into();
return Ok(None);
},
_ => {}
}
}
}
Err(Error::PromptSetText)
},
Self::SetTag => {
if let Some(tag_var) = env.stack.pop() {
if let Some(prompt) = env.stack.pop() {
match prompt.val.write().deref_mut() {
Val::Prompt(prompt) => {
match tag_var.val.read().deref() {
Val::Str(tag) => {
prompt.tag = Some(tag.clone());
},
_ => {
prompt.tag = None;
},
}
return Ok(None);
},
_ => {}
}
}
}
Err(Error::PromptSetTag)
},
Self::Len => {
if let Some(var) = env.stack.pop() {
match var.val.read().deref() {
Val::Prompt(prompt) => {
env.stack.push(Variable::val(Val::Num(Num::Int(prompt.prompts.len() as i64))));
return Ok(None);
},
_ => {}
}
}
Err(Error::PromptLen)
},
Self::At => {
if let Some(index_var) = env.stack.pop() {
if let Some(prompt_var) = env.stack.pop() {
match index_var.val.read().deref() {
Val::Num(num) => {
match prompt_var.val.read().deref() {
Val::Prompt(prompt) => {
if prompt.prompts.is_empty() {
env.stack.push(Variable::val(Val::Null));
} else {
let idx = i64::min(i64::max(num.int(), 0), (prompt.prompts.len() - 1) as i64) as usize;
if let Some(prompt) = prompt.prompts.get(idx) {
env.stack.push(Variable::val(Val::Prompt(prompt.clone())));
}
}
return Ok(None);
},
_ => {},
}
},
_ => {}
}
}
}
Err(Error::PromptAt)
},
Self::Any => {
if let Some(var) = env.stack.pop() {
match var.val.read().deref() {
Val::Prompt(prompt) => {
env.stack.push(Variable::val(Val::Bool(!prompt.prompts.is_empty())));
return Ok(None);
},
_ => {}
}
}
Err(Error::PromptAny)
},
Self::Empty => {
if let Some(var) = env.stack.pop() {
match var.val.read().deref() {
Val::Prompt(prompt) => {
env.stack.push(Variable::val(Val::Bool(prompt.prompts.is_empty())));
return Ok(None);
},
_ => {}
}
}
Err(Error::PromptEmpty)
},
Self::Push => {
if let Some(tag_var) = env.stack.pop() {
if let Some(to_push_var) = env.stack.pop() {
if let Some(prompt_var) = env.stack.pop() {
match prompt_var.val.write().deref_mut() {
Val::Prompt(prompt) => {
match to_push_var.val.read().deref() {
Val::Prompt(push_prompt) => {
let mut to_push = push_prompt.clone();
match tag_var.val.read().deref() {
Val::Str(tag) => {
to_push.tag = Some(tag.clone());
},
_ => {}
}
prompt.prompts.push_back(to_push);
return Ok(None);
},
Val::Str(push_str) => {
match tag_var.val.read().deref() {
Val::Str(tag) => {
prompt.prompts.push_back(Prompt::from((push_str, tag)));
},
_ => {
prompt.prompts.push_back(Prompt::from(push_str));
}
}
return Ok(None);
},
_ => {}
}
},
_ => {},
}
}
}
}
Err(Error::PromptPush)
},
Self::Pop => {
if let Some(prompt_var) = env.stack.pop() {
match prompt_var.val.write().deref_mut() {
Val::Prompt(prompt) => {
if let Some(popped) = prompt.prompts.pop_back() {
env.stack.push(Variable::val(Val::Prompt(popped)));
} else {
env.stack.push(Variable::val(Val::Null));
}
return Ok(None);
},
_ => {}
}
}
Err(Error::PromptPop)
},
Self::Clear => {
if let Some(prompt_var) = env.stack.pop() {
match prompt_var.val.write().deref_mut() {
Val::Prompt(prompt) => {
prompt.prompts.clear();
return Ok(None);
},
_ => {}
}
}
Err(Error::PromptClear)
},
Self::Reverse => {
if let Some(prompt_var) = env.stack.pop() {
match prompt_var.val.write().deref_mut() {
Val::Prompt(prompt) => {
let mut prompts = Vector::default();
for p in prompt.prompts.iter().rev() {
prompts.push_back(p.clone());
}
prompt.prompts = prompts;
return Ok(None);
},
_ => {}
}
}
Err(Error::PromptReverse)
},
Self::Remove => {
if let Some(index_var) = env.stack.pop() {
if let Some(prompt_var) = env.stack.pop() {
match prompt_var.val.write().deref_mut() {
Val::Prompt(prompt) => {
match index_var.val.read().deref() {
Val::Num(num) => {
if prompt.prompts.is_empty() {
env.stack.push(Variable::val(Val::Null));
} else {
let idx = i64::min(i64::max(num.int(), 0), (prompt.prompts.len() - 1) as i64);
let removed = prompt.prompts.remove(idx as usize);
env.stack.push(Variable::val(Val::Prompt(removed)));
}
return Ok(None);
},
_ => {}
}
},
_ => {}
}
}
}
Err(Error::PromptRemove)
},
Self::Insert => {
if let Some(to_insert_var) = env.stack.pop() {
if let Some(index_var) = env.stack.pop() {
if let Some(prompt_var) = env.stack.pop() {
match prompt_var.val.write().deref_mut() {
Val::Prompt(prompt) => {
match to_insert_var.val.read().deref() {
Val::Prompt(insert) => {
match index_var.val.read().deref() {
Val::Num(num) => {
if prompt.prompts.is_empty() {
prompt.prompts.push_back(insert.clone());
} else {
let idx = i64::min(i64::max(num.int(), 0), prompt.prompts.len() as i64);
prompt.prompts.insert(idx as usize, insert.clone());
}
return Ok(None);
},
_ => {}
}
},
_ => {}
}
},
_ => {}
}
}
}
}
Err(Error::PromptInsert)
},
Self::Replace => {
if let Some(to_insert_var) = env.stack.pop() {
if let Some(index_var) = env.stack.pop() {
if let Some(prompt_var) = env.stack.pop() {
match prompt_var.val.write().deref_mut() {
Val::Prompt(prompt) => {
match to_insert_var.val.read().deref() {
Val::Prompt(insert) => {
match index_var.val.read().deref() {
Val::Num(num) => {
if prompt.prompts.is_empty() {
prompt.prompts.push_back(insert.clone());
} else {
let idx = i64::min(i64::max(num.int(), 0), (prompt.prompts.len() - 1) as i64) as usize;
prompt.prompts.remove(idx);
prompt.prompts.insert(idx, insert.clone());
}
return Ok(None);
},
_ => {}
}
},
_ => {}
}
},
_ => {}
}
}
}
}
Err(Error::PromptReplace)
},
}
}
}