from typing import List
from models import RevOpsAction, LeadData

def grader_easy(actions: List[RevOpsAction], leads: List[LeadData]) -> float:
    # Requires: enrich -> score 60-90 -> route to rep_amer_mm
    score = 0.0
    enriched = any(a.action_type == "enrich_lead" for a in actions)
    scored = any(a.action_type == "update_lead_score" and 60 <= (a.score or 0) <= 90 for a in actions)
    routed_correctly = any(a.action_type == "route_to_rep" and a.rep_id == "rep_amer_mm" for a in actions)
    
    if enriched: score += 0.2
    if scored: score += 0.3
    if routed_correctly: score += 0.5
    
    return score

def grader_medium(actions: List[RevOpsAction], leads: List[LeadData]) -> float:
    # Requires: enrich BEFORE score -> score >= 80 -> route to rep_emea_ent
    score = 0.0
    enriched_first = False
    
    scored_val = None
    routed_rep = None
    
    has_enriched = False
    for a in actions:
        if a.action_type == "enrich_lead":
            has_enriched = True
        if a.action_type == "update_lead_score":
            scored_val = a.score
            if has_enriched:
                enriched_first = True
        if a.action_type == "route_to_rep":
            routed_rep = a.rep_id

    if has_enriched: score += 0.2
    if enriched_first and scored_val is not None and scored_val >= 80: score += 0.4
    if routed_rep == "rep_emea_ent": score += 0.4
    
    return score

def grader_hard(actions: List[RevOpsAction], leads: List[LeadData]) -> float:
    # Requires: disqualify student, disqualify competitor, check_crm -> merge -> flag -> route cfo
    score = 0.0
    
    disqualified_count = sum(1 for a in actions if a.action_type == "disqualify")
    if disqualified_count >= 2:
        score += 0.2
        
    checked_crm = any(a.action_type == "check_crm" for a in actions)
    merged = any(a.action_type == "merge_with_account" and a.account_id == "acc_major_fin" for a in actions)
    flagged = any(a.action_type == "flag_reengagement" and a.opportunity_id == "opp_101" for a in actions)
    routed = any(a.action_type == "route_to_rep" and a.rep_id == "rep_amer_ent_original" for a in actions)
    
    if checked_crm: score += 0.1
    if merged: score += 0.2
    if flagged: score += 0.2
    if routed: score += 0.3
    
    # Check fatal violation: routed ANYWHERE without checking CRM
    routed_wrong = any(a.action_type == "route_to_rep" and a.rep_id != "rep_amer_ent_original" for a in actions)
    if not checked_crm and routed_wrong:
        return 0.0 # Fatal failure
        
    return score