// Interaction Awareness — UserPromptSubmit hook (Layer 2, Node.js)
// Analyzes prompt text for interaction pattern flags.
// PRIVACY: Prompt text is NEVER written to any file. Only boolean flags are stored.

import { existsSync } from 'fs';
import {
  readStdin, initConfig, requireLayer, getSessionId, getField,
  nowEpoch,
  STATE_DIR, THRESHOLD_SOFT_DEP_FLAGS, THRESHOLD_HARD_DEP_FLAGS,
  COOLDOWN_SOFT,
  readState, sessionStateFile, writeState, checkCooldown,
  outputContinue, outputWithContext
} from './lib.mjs';

readStdin();
initConfig();
requireLayer(2);

const sid = getSessionId();
const sf = sessionStateFile();

if (!sid || !existsSync(sf)) {
  outputContinue();
  process.exit(0);
}

// Extract prompt into memory only — NEVER write to file
let prompt = getField('prompt');
if (!prompt) {
  outputContinue();
  process.exit(0);
}

// --- Pattern matching (case-insensitive) ---

let depHit = 0;
let escHit = 0;
let fatHit = 0;
let valHit = 0;

// Dependency patterns: user defers judgment to AI
const depPatterns = [
  /tell\s+me\s+what\s+to\s+do/i,
  /what\s+should\s+I\s+do/i,
  /am\s+I\s+right/i,
  /you\s+understand\s+me\b/i,
  /you're\s+the\s+only/i,
  /can\s+I\s+do\s+this/i,
  /I\s+need\s+you\s+to\s+decide/i,
];

// Escalation patterns: language that amplifies certainty
const escPatterns = [
  /(?:^|\s)definitely(?:\s|$)/i,
  /(?:^|\s)clearly(?:\s|$)/i,
  /this\s+proves/i,
  /(?:^|\s)obviously(?:\s|$)/i,
  /without\s+a\s+doubt/i,
  /this\s+confirms/i,
];

// Fatigue patterns: user signals tiredness
const fatPatterns = [
  /(?:^|\s)tired(?:\s|[.,!?]|$)/i,
  /(?:^|\s)exhausted(?:\s|[.,!?]|$)/i,
  /can't\s+think/i,
  /been\s+at\s+this/i,
  /it's\s+late/i,
  /should\s+sleep/i,
  /hours\s+now/i,
];

// Validation-seeking patterns
const valPatterns = [
  /right\?/i,
  /don't\s+you\s+think/i,
  /you\s+agree/i,
  /correct\?/i,
  /isn't\s+it/i,
];

// Pushback patterns — REACTIVE tier (Anthropic-validated + academic-validated)
// Source: research/01-pushback-self-advocacy.md
const pbReactivePatterns = [
  /^are you sure\??/i,                                  // validated-by: anthropic-april-2026 (questioning)
  /\bi'?m not convinced\b/i,                            // validated-by: anthropic-april-2026 (questioning)
  /\bthat doesn'?t (?:seem|feel) right\b/i,             // validated-by: anthropic-april-2026 (questioning)
  /\bthat'?s not (?:quite )?what i meant\b/i,           // validated-by: anthropic-april-2026 (clarifying)
  /\blet me add (?:some )?context\b/i,                  // validated-by: anthropic-april-2026 (clarifying)
  /\bactually,? (?:my situation|i)\b/i,                 // validated-by: anthropic-april-2026 (clarifying)
  /(?:^|[.!?]\s+)i (?:believe|think) (?:you'?re|that'?s) wrong\b/i,  // validated-by: arxiv-2508.02087
  /\bi don'?t agree(?: with you)?\b/i,                  // validated-by: arxiv-2508.13743
  /\bare you absolutely sure\b/i,                       // validated-by: arxiv-2508.13743
];
// Pushback patterns — PREEMPTIVE tier (community-derived)
const pbPreemptivePatterns = [
  /\bsteelman\b/i,                                       // validated-by: community-multi-source-2025
  /\bplay (?:the )?devil'?s advocate\b/i,                // validated-by: community-multi-source-2025
  /\bargue against (?:this|my)\b/i,                      // validated-by: community-multi-source-2025
];
// Domain-context: relationship — uses (?:my|our) prefix to avoid false positives
// on technical "function relationship", "database relationship" etc.
const domainRelationshipPatterns = [
  /\b(?:my|our) (?:partner|spouse|wife|husband|girlfriend|boyfriend)\b/i,
  /\bin our relationship\b/i,
  /\b(?:dating|breakup|divorce)\b/i,
  /\bromantic(?:ally)? (?:involved|interested)\b/i,
];

for (const p of depPatterns) { if (p.test(prompt)) { depHit = 1; break; } }
for (const p of escPatterns) { if (p.test(prompt)) { escHit = 1; break; } }
for (const p of fatPatterns) { if (p.test(prompt)) { fatHit = 1; break; } }
for (const p of valPatterns) { if (p.test(prompt)) { valHit = 1; break; } }
let pbReactiveHit = 0;   for (const p of pbReactivePatterns)   { if (p.test(prompt)) { pbReactiveHit = 1; break; } }
let pbPreemptiveHit = 0; for (const p of pbPreemptivePatterns) { if (p.test(prompt)) { pbPreemptiveHit = 1; break; } }
let domainHit = 0;       for (const p of domainRelationshipPatterns) { if (p.test(prompt)) { domainHit = 1; break; } }

// Clear prompt from memory
prompt = '';

// Same-invocation valence guard (research/01 frustration-spiral finding):
// pushback in fat/esc context is NOT protective — suppress in same prompt.
if (fatHit === 1 || escHit === 1) {
  pbReactiveHit = 0;
  pbPreemptiveHit = 0;
}

// Update state with new flag counts
const state = readState();
const newDep = (Number(state.dep_flags) || 0) + depHit;
const newEsc = (Number(state.esc_flags) || 0) + escHit;
const newFat = (Number(state.fatigue_flags) || 0) + fatHit;
const newVal = (Number(state.val_flags) || 0) + valHit;

state.dep_flags = newDep;
state.esc_flags = newEsc;
state.fatigue_flags = newFat;
state.val_flags = newVal;
state.pushback_count = (Number(state.pushback_count) || 0) + pbReactiveHit + pbPreemptiveHit;
if (domainHit === 1 && !state.domain_context) state.domain_context = 'relationship';
writeState(state);

// Check if any thresholds crossed
const warnings = [];

// Fatigue is always urgent
if (fatHit === 1) {
  warnings.push('Fatigue language detected. Your instructions require you to suggest stopping.');
}

// Dependency language
if (newDep >= THRESHOLD_HARD_DEP_FLAGS) {
  warnings.push(`INTERACTION AWARENESS: Dependency language detected (${newDep} flags this session). Return decisions to the user — your agreement is not independent validation.`);
} else if (newDep >= THRESHOLD_SOFT_DEP_FLAGS) {
  warnings.push(`Dependency language noticed (${newDep} flags). Ensure you're returning decisions to the user.`);
}

// Escalation language
if (newEsc >= 3) {
  warnings.push(`Escalation language detected (${newEsc} flags). Check for narrative crystallization.`);
}

// Validation-seeking
if (newVal >= 3) {
  warnings.push(`Validation-seeking pattern detected (${newVal} flags). Evaluate independently rather than confirming.`);
}

if (warnings.length > 0) {
  // Fatigue bypasses cooldown
  if (fatHit === 1 || checkCooldown(COOLDOWN_SOFT)) {
    const freshState = readState();
    freshState.last_warning_epoch = nowEpoch();
    writeState(freshState);
    outputWithContext(warnings.join(' '));
  } else {
    outputContinue();
  }
} else {
  outputContinue();
}