// ═══════════════════════════════════════════════════════════════════════
// INIT — bootstrap everything
// ═══════════════════════════════════════════════════════════════════════

function init() {
    loadConfig();
    detectLevel();
    STATE.page = detectPage();

    // Always-on features
    setupRETimer();
    addConfigButton();
    renderProgressPanel();

    if (STATE.page === 'battle') {
        initializeBattle();
        autoCheckTask('battle');
    } else {
        // Non-battle page enhancements
        if (STATE.page === 'itemshop') { enhanceItemShop(); autoCheckTask('buy-health'); }
        if (STATE.page === 'equipshop') { enhanceEquipShopWithAdvice(); }
        if (STATE.page === 'shrine') enhanceShrine();
        if (STATE.page === 'training') { enhanceTraining(); autoCheckTask('training'); }
        if (STATE.page === 'monsterlab') { enhanceMonsterLab(); autoCheckTask('feed'); }
        if (STATE.page === 'arena') { autoCheckTask('arenas'); autoCheckTask('first-blood'); }
        if (STATE.page === 'character') showGuidancePanel();
        if (STATE.page === 'settings') enhanceSettings();
        if (STATE.page === 'armory') enhanceArmory();
        if (STATE.page === 'abilities') enhanceAbilities();
        if (STATE.page === 'monster') enhanceMonsterLab();
    }

    // Dawn initialization
    if (!localStorage[SP + 'lastDawn']) {
        try { localStorage[SP + 'lastDawn'] = JSON.stringify(Date.now()); } catch (e) {}
    }
    updateRETimer();

    // Watch for dynamic page transitions (arena/grindfest → battle)
    const bodyObserver = new MutationObserver(() => {
        if (!STATE.inBattle && isBattlePage()) {
            initializeBattle();
        }
    });
    bodyObserver.observe(document.body, { childList: true, subtree: true });
}

function initializeBattle() {
    if (STATE.battleInitialized && STATE.page === 'battle') return;
    STATE.page = 'battle';
    STATE.inBattle = true;
    STATE._mysticUsed = false; // Reset Mystic Gem tracking on new battle

    parseBattleState();
    // Force tier update from cached level (battle page may not have level_readout)
    if (STATE.level > 1) updateTier();
    setupHover();
    setupKeybindings();
    addMonsterNumbers();
    refreshUI();
    addConfigButton();
    showDifficultyBanner();

    // Watch battle log
    const log = document.getElementById('textlog');
    if (log && !log.dataset.hvObserved) {
        log.dataset.hvObserved = '1';
        const obs = new MutationObserver(() => {
            parseBattleState();
            saveMonsterData();
            logRound(); // Log this round's data for analysis
            if (CFG.hoverEnabled && !STATE.interruptHover && !STATE.interruptAlert && STATE.hoverTarget >= 0) {
                const a = getSmartAction();
                if (a) executeAction(a);
            }
            refreshUI();
            updateConfigButton();
        });
        obs.observe(log, { childList: true, subtree: true, characterData: true });
    }

    // Watch vitals pane
    const vitals = document.getElementById('pane_vitals');
    if (vitals && !vitals.dataset.hvObserved) {
        vitals.dataset.hvObserved = '1';
        const vobs = new MutationObserver(() => {
            parseBattleState();
            logRound(); // Also log on vitals changes (catches end-of-round)
            refreshUI();
            updateConfigButton();
            // Check if battle ended (completion pane appeared)
            if (document.getElementById('pane_completion')) {
                // Battle ended — handled by log observer
            }
        });
        vobs.observe(vitals, { childList: true, subtree: true, attributes: true });
    }

    // RiddleMaster detection
    if (document.getElementById('riddlemaster')) {
        STATE.interruptHover = true;
    }

    STATE.battleInitialized = true;
}

// ── Bootstrap ──

if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', init);
} else {
    init();
}

console.log('%c🛡️ HV Unified v' + VERSION + '%c | Q=action H=hover C=cure ,=settings',
    'color:#fdcb00;font-weight:bold', '');
console.log('%c   HV.advice() for guidance | HV.difficulty() for difficulty check',
    'color:#888;font-size:10px');

})();