"""Deterministic comparison baseline, explicitly not the proposed final agent."""
from dataclasses import asdict
import re
from .actions import Action,Decision,Kind
from .features import candidates,lexical


class LexicalRoleBaseline:
    def predict(self,goal,state,ticket):
        elements = [asdict(e) for e in state.elements]
        indices = candidates(goal,elements)
        if not indices:
            return Decision(ticket,Action(Kind.ASK_USER,('No candidate.',)))
        index = max(indices,key=lambda i:(lexical(goal,elements[i])[2],lexical(goal,elements[i])[0]))
        element = state.elements[index]
        if element.role in {'textbox','searchbox'}:
            kind = Kind.TYPE
        elif element.role in {'combobox','listbox'}:
            kind = Kind.SELECT
        else:
            kind = Kind.CLICK
        args = (element.ref,)
        if kind in {Kind.TYPE,Kind.SELECT}:
            values = re.findall(r'"([^"\n]*)"',goal)
            if len(values)!=1:
                return Decision(ticket,Action(Kind.ASK_USER,('No unambiguous literal.',)))
            args += (values[0],)
        return Decision(ticket,Action(kind,args))