// AI dimension-naming modal (Phase 2), extracted from Sidebar.js in H4.
// Pulls top/bottom activator evidence for a dimension, asks the remote provider
// (Gemini) for a proposed name, and lets the user accept/edit/save the label.

import { STATE, saveLabel } from '../../core/State.js';
import { updateHUD } from '../HUD.js';
import { renderDimensionInspector } from '../../visualizer/DimensionInspector.js';
import { showCustomModal } from './CustomModal.js';

/**
 * Open the "Nombrar Dimensión" modal for the given dimension index.
 * @param {number} dimIndex - Dimension to name (0-based).
 * @returns {void}
 */
export function showNamingModal(dimIndex) {
    const activeFilenames = STATE.reliefDocs.filter(d => d.visible).map(d => d.filename);

    // HTML structure for modal content
    const contentHTML = `
        <div style="display:flex; flex-direction:column; gap: var(--spacing-sm); max-width: 600px; width: 90vw; max-height: 80vh; overflow-y: auto; padding-right: 4px;" class="custom-scrollbar">
            <p style="font-size: var(--font-size-small); color: var(--color-neutral-400);">
                Analyzing semantic evidence for Dimension <strong>#${dimIndex}</strong>.
            </p>

            <!-- Evidencia Section -->
            <div style="border: 1px solid oklch(from var(--color-neutral-50) l c h / 0.05); border-radius: 6px; background: oklch(from var(--color-neutral-950) l c h / 0.25); padding: 8px;">
                <div style="display:flex; justify-content:space-between; align-items:center; margin-bottom: 6px;">
                    <span style="font-size: var(--font-size-small); font-weight:700; color: var(--color-neutral-300);">Chunk Evidence (+ / −)</span>
                    <button id="modal-btn-copy-prompt" class="btn btn-secondary" style="font-size:9px; min-height:18px; padding:0 6px; cursor:pointer;" disabled>📋 Copy Gemini Prompt</button>
                </div>
                <div style="max-height: 180px; overflow-y:auto; font-size:10px; font-family:var(--font-mono); display:flex; flex-direction:column; gap: 8px;" class="custom-scrollbar">
                    <div>
                        <strong style="color:var(--color-semantic-success);">(+) Top Activators:</strong>
                        <ul id="modal-evidence-pos" style="padding-left:14px; margin-top:2px;">
                            <li style="color:var(--color-neutral-600);">Fetching chunks...</li>
                        </ul>
                    </div>
                    <div>
                        <strong style="color:var(--color-semantic-error);">(-) Bottom Activators:</strong>
                        <ul id="modal-evidence-neg" style="padding-left:14px; margin-top:2px;">
                            <li style="color:var(--color-neutral-600);">Fetching chunks...</li>
                        </ul>
                    </div>
                </div>
            </div>

            <!-- AI Proposal / Input Section -->
            <div id="modal-ai-result-section" style="border: 1px solid var(--color-brand-border); border-radius:6px; background: oklch(from var(--color-brand-primary) l c h / 0.05); padding: 8px; display:flex; flex-direction:column; gap: 6px;">
                <div style="font-weight:700; font-size: var(--font-size-small); color:var(--color-brand-secondary);">Gemini AI Proposal</div>
                <div id="modal-proposal-loading" style="font-style:italic; color:var(--color-neutral-400);">⏳ Querying remote model...</div>

                <div id="modal-proposal-display" style="display:none; flex-direction:column; gap:6px;">
                    <div><strong>Proposed name:</strong> <span id="modal-proposal-name" style="color: var(--color-neutral-50); font-weight:bold; font-size:14px; text-transform:uppercase;"></span></div>
                    <div><strong>Rationale:</strong> <span id="modal-proposal-rationale" style="font-style:italic; font-size:11px; color:var(--color-neutral-200);"></span></div>
                    <div style="display:flex; align-items:center; gap:4px;">
                        <strong>Confidence:</strong>
                        <span id="modal-proposal-confidence" style="text-transform:uppercase; font-weight:bold; font-size:10px; padding:1px 6px; border-radius:4px;"></span>
                    </div>
                    <div style="display:flex; gap: 6px; margin-top:4px; border-top:1px solid oklch(from var(--color-neutral-50) l c h / 0.05); padding-top:6px;">
                        <button id="modal-btn-accept" class="btn btn-accent" style="font-size:11px; min-height:24px; padding: 2px 8px; cursor:pointer;">Accept Proposal</button>
                        <button id="modal-btn-edit-proposal" class="btn btn-secondary" style="font-size:11px; min-height:24px; padding: 2px 8px; cursor:pointer;">Edit</button>
                    </div>
                </div>
            </div>

            <!-- Edit Form / Manual Entry -->
            <div id="modal-edit-section" style="display:none; flex-direction:column; gap: var(--spacing-sm); border-top:1px solid oklch(from var(--color-neutral-50) l c h / 0.05); padding-top:8px;">
                <div style="display:flex; flex-direction:column; gap:2px;">
                    <label style="font-size: var(--font-size-caption); color: var(--color-neutral-400);">Dimension Name:</label>
                    <input id="modal-input-name" class="input-field" placeholder="e.g. SPATIAL CONCEPT" style="text-transform: uppercase;">
                </div>

                <div style="display:flex; flex-direction:column; gap:2px;">
                    <label style="font-size: var(--font-size-caption); color: var(--color-neutral-400);">Rationale / Justification:</label>
                    <textarea id="modal-input-rationale" class="input-field" placeholder="Explain why this name fits the evidence..." style="min-height: 40px; resize: vertical; font-family: var(--font-sans);"></textarea>
                </div>

                <div style="display:flex; align-items:center; gap: 8px;">
                    <label style="font-size: var(--font-size-caption); color: var(--color-neutral-400);">Confidence:</label>
                    <select id="modal-select-confidence" class="input-field" style="max-width:120px; background: oklch(from var(--color-neutral-950) l c h / 0.5);">
                        <option value="high">High</option>
                        <option value="medium">Medium</option>
                        <option value="low">Low</option>
                    </select>
                </div>
            </div>
        </div>
    `;

    // API response storage
    let apiData = null;

    showCustomModal({
        title: `Name Dimension #${dimIndex}`,
        contentHTML: contentHTML,
        confirmText: "Save",
        cancelText: "Close",
        onConfirm: (overlay) => {
            const inputName = overlay.querySelector('#modal-input-name');
            const inputRationale = overlay.querySelector('#modal-input-rationale');
            const selectConfidence = overlay.querySelector('#modal-select-confidence');

            const finalName = inputName ? inputName.value.trim() : "";
            const finalRationale = inputRationale ? inputRationale.value.trim() : "";
            const finalConfidence = selectConfidence ? selectConfidence.value : "high";

            if (finalName) {
                saveLabel(
                    dimIndex,
                    finalName,
                    finalRationale,
                    finalConfidence,
                    apiData ? apiData.evidence : {},
                    'human'
                );
                updateHUD();
                if (STATE.comparisonMode === 'C') {
                    renderDimensionInspector();
                }
            }
        }
    });

    const confirmBtn = document.getElementById('modal-confirm-btn');
    if (confirmBtn) confirmBtn.style.display = 'none';

    (async () => {
        const overlay = document.getElementById('app-modal-overlay');
        if (!overlay) return;

        const posList = overlay.querySelector('#modal-evidence-pos');
        const negList = overlay.querySelector('#modal-evidence-neg');
        const copyBtn = overlay.querySelector('#modal-btn-copy-prompt');
        const loadingEl = overlay.querySelector('#modal-proposal-loading');
        const displayEl = overlay.querySelector('#modal-proposal-display');
        const nameEl = overlay.querySelector('#modal-proposal-name');
        const rationaleEl = overlay.querySelector('#modal-proposal-rationale');
        const confidenceEl = overlay.querySelector('#modal-proposal-confidence');
        const editSection = overlay.querySelector('#modal-edit-section');

        try {
            if (!STATE.provider) throw new Error("No provider active");

            apiData = await STATE.provider.nameDimension(dimIndex, activeFilenames, STATE.featureSpace || 'RAW');

            if (posList && apiData.evidence && apiData.evidence.top_activators) {
                posList.innerHTML = apiData.evidence.top_activators.map(c =>
                    `<li style="margin-bottom:4px;"><strong>[Val: ${c.value.toFixed(3)}]</strong> ${c.text.slice(0, 160)}… <span style="color:var(--color-brand-primary); font-size:8px;">(F: ${c.filename})</span></li>`
                ).join('') || '<li>No evidence.</li>';
            }
            if (negList && apiData.evidence && apiData.evidence.bottom_activators) {
                negList.innerHTML = apiData.evidence.bottom_activators.map(c =>
                    `<li style="margin-bottom:4px;"><strong>[Val: ${c.value.toFixed(3)}]</strong> ${c.text.slice(0, 160)}… <span style="color:var(--color-brand-primary); font-size:8px;">(F: ${c.filename})</span></li>`
                ).join('') || '<li>No evidence.</li>';
            }

            if (copyBtn && apiData.prompt) {
                copyBtn.removeAttribute('disabled');
                copyBtn.onclick = () => {
                    navigator.clipboard.writeText(apiData.prompt)
                        .then(() => {
                            copyBtn.textContent = '✅ Copied!';
                            setTimeout(() => { copyBtn.textContent = '📋 Copy Gemini Prompt'; }, 2000);
                        })
                        .catch(err => console.error("Clipboard copy failed:", err));
                };
            }

            if (loadingEl) loadingEl.style.display = 'none';

            if (apiData.has_api && apiData.success && apiData.proposal) {
                if (displayEl) displayEl.style.display = 'flex';
                if (nameEl) nameEl.textContent = apiData.proposal.name;
                if (rationaleEl) rationaleEl.textContent = apiData.proposal.rationale;
                if (confidenceEl) {
                    confidenceEl.textContent = apiData.proposal.confidence;
                    const conf = apiData.proposal.confidence.toLowerCase();
                    if (conf === 'high') {
                        confidenceEl.style.color = 'var(--color-neutral-50)';
                        confidenceEl.style.backgroundColor = 'oklch(from var(--color-semantic-success) l c h / 0.3)';
                        confidenceEl.style.border = '1px solid var(--color-semantic-success)';
                    } else if (conf === 'medium') {
                        confidenceEl.style.color = 'var(--color-neutral-50)';
                        confidenceEl.style.backgroundColor = 'oklch(from var(--color-semantic-warning) l c h / 0.3)';
                        confidenceEl.style.border = '1px solid var(--color-semantic-warning)';
                    } else {
                        confidenceEl.style.color = 'var(--color-neutral-50)';
                        confidenceEl.style.backgroundColor = 'oklch(from var(--color-semantic-error) l c h / 0.3)';
                        confidenceEl.style.border = '1px solid var(--color-semantic-error)';
                    }
                }

                const acceptBtn = overlay.querySelector('#modal-btn-accept');
                if (acceptBtn) {
                    acceptBtn.onclick = () => {
                        saveLabel(
                            dimIndex,
                            apiData.proposal.name,
                            apiData.proposal.rationale,
                            apiData.proposal.confidence,
                            apiData.evidence,
                            'ai'
                        );
                        updateHUD();
                        if (STATE.comparisonMode === 'C') {
                            renderDimensionInspector();
                        }
                        overlay.classList.remove('active');
                        setTimeout(() => overlay.remove(), 300);
                    };
                }

                const editProposalBtn = overlay.querySelector('#modal-btn-edit-proposal');
                if (editProposalBtn) {
                    editProposalBtn.onclick = () => {
                        if (displayEl) displayEl.style.display = 'none';
                        if (editSection) editSection.style.display = 'flex';
                        if (confirmBtn) confirmBtn.style.display = 'block';

                        const inputName = overlay.querySelector('#modal-input-name');
                        const inputRationale = overlay.querySelector('#modal-input-rationale');
                        const selectConfidence = overlay.querySelector('#modal-select-confidence');

                        if (inputName) inputName.value = apiData.proposal.name;
                        if (inputRationale) inputRationale.value = apiData.proposal.rationale;
                        if (selectConfidence) selectConfidence.value = apiData.proposal.confidence;

                        setTimeout(() => {
                            if (inputName) { inputName.focus(); inputName.select(); }
                        }, 50);
                    };
                }

            } else {
                if (loadingEl) {
                    if (apiData.error) {
                        loadingEl.textContent = `❌ API failed: ${apiData.error}. Switching to MANUAL mode.`;
                        loadingEl.style.color = 'var(--color-semantic-error)';
                        loadingEl.style.display = 'block';
                    } else {
                        loadingEl.textContent = "ℹ️ MANUAL mode active (copy the prompt above and fill in the fields below).";
                        loadingEl.style.color = 'var(--color-neutral-400)';
                        loadingEl.style.display = 'block';
                    }
                }
                if (editSection) editSection.style.display = 'flex';
                if (confirmBtn) confirmBtn.style.display = 'block';

                const prefix = (STATE.featureSpace || 'RAW').toLowerCase();
                const key = `${prefix}_${dimIndex}`;
                const currentLabel = STATE.dimensionLabels[key] || "";
                const dictEntry = STATE.dimensionDictionary ? STATE.dimensionDictionary[key] : null;
                const inputName = overlay.querySelector('#modal-input-name');
                const inputRationale = overlay.querySelector('#modal-input-rationale');
                const selectConfidence = overlay.querySelector('#modal-select-confidence');

                if (inputName) inputName.value = currentLabel;
                if (inputRationale && dictEntry) inputRationale.value = dictEntry.rationale || "";
                if (selectConfidence && dictEntry) selectConfidence.value = dictEntry.confidence || "high";

                setTimeout(() => {
                    if (inputName) { inputName.focus(); inputName.select(); }
                }, 50);
            }

        } catch (err) {
            console.error("Error loading naming evidence:", err);
            if (loadingEl) {
                loadingEl.textContent = `❌ Error: ${err.message}`;
                loadingEl.style.color = 'var(--color-semantic-error)';
            }
        }
    })();
}