// Production - The Idle Game: Corporate IPO & Boardroom Perks View
// Fine-grained DOM updates without innerHTML teardowns

import { BOARDROOM_PERKS, calculateSharesEarned, IPO_MIN_VALUATION } from '../data/boardroom.js';
import { fmtCurrency, fmtNum } from '../core/formatters.js';

export function mountBoardroom(container, state, onAction) {
    const earnedShares = calculateSharesEarned(state.lifetimeRevenue);
    const canIPO = state.lifetimeRevenue >= IPO_MIN_VALUATION;
    const perks = state.boardroomPerks || {};

    let html = `
        <div class="boardroom-header-pane">
            <div class="boardroom-hero">
                <div class="hero-left">
                    <span class="executive-tag">
                        <iconify-icon icon="lucide:building-2"></iconify-icon> Executive Boardroom
                    </span>
                    <h2 class="boardroom-title">Corporate IPO & Venture Capital</h2>
                    <p class="boardroom-desc">
                        Take your manufacturing conglomerate public on the global securities exchange.
                        Liquidate current factories to secure permanent <strong>Venture Shares ($V-Shares)</strong>, funding cutting-edge R&D and boardroom privileges.
                    </p>
                </div>
                <div class="hero-valuation-card">
                    <div class="val-label">Corporate Enterprise Valuation</div>
                    <div class="val-number font-mono" id="boardroom-val-number">${fmtCurrency(state.valuation)}</div>
                    <div class="val-lifetime">Lifetime Gross Revenue: <strong id="boardroom-val-lifetime">${fmtCurrency(state.lifetimeRevenue)}</strong></div>
                </div>
            </div>

            <div class="ipo-action-banner ${canIPO ? 'ready-ipo' : 'locked-ipo'}" id="boardroom-ipo-banner">
                <div class="ipo-banner-info">
                    <div class="ipo-shares-badge font-mono">
                        <iconify-icon icon="lucide:gem"></iconify-icon>
                        <span id="boardroom-earned-shares">+${fmtNum(earnedShares, 0)} $V-Shares</span>
                    </div>
                    <div>
                        <h4 class="ipo-banner-title">Initial Public Offering (IPO) Ready</h4>
                        <p class="ipo-banner-sub" id="boardroom-ipo-sub">
                            ${canIPO 
                                ? `Execute corporate IPO now to claim ${fmtNum(earnedShares, 0)} Venture Shares and restart with permanent bonuses.` 
                                : `Requires minimum ${fmtCurrency(IPO_MIN_VALUATION)} in lifetime revenue to file for IPO.`}
                        </p>
                    </div>
                </div>
                <button class="btn-primary-corp btn-ipo-trigger" id="boardroom-btn-ipo" ${canIPO ? '' : 'disabled'}>
                    <iconify-icon icon="lucide:trending-up"></iconify-icon>
                    <span>Launch IPO</span>
                </button>
            </div>
        </div>

        <div class="boardroom-shares-summary">
            <div class="shares-pill">
                <span class="shares-label">Available $V-Shares:</span>
                <strong class="shares-val font-mono"><iconify-icon icon="lucide:gem"></iconify-icon> <span id="boardroom-avail-shares">${fmtNum(state.ventureShares, 0)}</span></strong>
            </div>
            <div class="shares-pill">
                <span class="shares-label">IPOs Completed:</span>
                <strong class="shares-val font-mono" id="boardroom-ipos-completed">${state.ipoCount || 0}</strong>
            </div>
        </div>

        <div class="perks-section-title">
            <h3><iconify-icon icon="lucide:shield-check"></iconify-icon> Boardroom R&D Tech Tree</h3>
            <span>Permanent corporate privileges that persist across all future IPO expansions</span>
        </div>

        <div class="perks-grid">
    `;

    for (const perk of BOARDROOM_PERKS) {
        const currentLvl = perks[perk.id] || 0;
        const isMaxed = currentLvl >= perk.maxLevel;
        const nextCost = !isMaxed ? perk.costShares[currentLvl] : 0;
        const canAfford = state.ventureShares >= nextCost && !isMaxed;

        html += `
            <div class="perk-card ${isMaxed ? 'perk-maxed' : ''}" id="perk-card-${perk.id}">
                <div class="perk-header">
                    <div class="perk-icon-wrap" style="background: ${perk.color}15; color: ${perk.color};">
                        <iconify-icon icon="${perk.icon}" class="icon-lg"></iconify-icon>
                    </div>
                    <div>
                        <div class="perk-tier-badge" id="perk-tier-${perk.id}">Level ${currentLvl} / ${perk.maxLevel}</div>
                        <h4 class="perk-name">${perk.name}</h4>
                    </div>
                </div>

                <p class="perk-desc">${perk.description}</p>
                <div class="perk-effect-box">
                    <iconify-icon icon="lucide:zap" style="color: ${perk.color};"></iconify-icon>
                    <span>${perk.effectDesc}</span>
                </div>

                <div class="perk-footer">
                    <button class="btn-corp-perk btn-buy-perk" id="btn-perk-${perk.id}" data-perk="${perk.id}" ${canAfford ? '' : 'disabled'}>
                        <iconify-icon icon="lucide:gem"></iconify-icon>
                        <span id="btn-perk-text-${perk.id}">${isMaxed ? 'Max Tier Acquired' : `Upgrade (${fmtNum(nextCost, 0)} $V-Shares)`}</span>
                    </button>
                </div>
            </div>
        `;
    }

    html += `</div>`;
    container.innerHTML = html;

    const ipoBtn = container.querySelector('.btn-ipo-trigger');
    if (ipoBtn) {
        ipoBtn.onclick = () => onAction({ type: 'TRIGGER_IPO' });
    }

    container.querySelectorAll('.btn-buy-perk').forEach(btn => {
        btn.onclick = () => onAction({ type: 'BUY_PERK', perkId: btn.dataset.perk });
    });
}

export function updateBoardroom(container, state) {
    const earnedShares = calculateSharesEarned(state.lifetimeRevenue);
    const canIPO = state.lifetimeRevenue >= IPO_MIN_VALUATION;
    const perks = state.boardroomPerks || {};

    const elVal = document.getElementById('boardroom-val-number');
    if (elVal) elVal.textContent = fmtCurrency(state.valuation);

    const elLifetime = document.getElementById('boardroom-val-lifetime');
    if (elLifetime) elLifetime.textContent = fmtCurrency(state.lifetimeRevenue);

    const elEarned = document.getElementById('boardroom-earned-shares');
    if (elEarned) elEarned.textContent = `+${fmtNum(earnedShares, 0)} $V-Shares`;

    const btnIPO = document.getElementById('boardroom-btn-ipo');
    if (btnIPO) btnIPO.disabled = !canIPO;

    const elAvail = document.getElementById('boardroom-avail-shares');
    if (elAvail) elAvail.textContent = fmtNum(state.ventureShares, 0);

    for (const perk of BOARDROOM_PERKS) {
        const currentLvl = perks[perk.id] || 0;
        const isMaxed = currentLvl >= perk.maxLevel;
        const nextCost = !isMaxed ? perk.costShares[currentLvl] : 0;
        const canAfford = state.ventureShares >= nextCost && !isMaxed;

        const elBtn = document.getElementById(`btn-perk-${perk.id}`);
        if (elBtn) elBtn.disabled = !canAfford;
    }
}