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xavix-yo
2026-07-10 15:02:09 +01:00
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web/components/copilot-render.js
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import { html, nothing } from 'lit';
import { unsafeHTML } from 'lit/directives/unsafe-html.js';
import { renderMarkdown } from '../lib/base.js';
import { openFile } from '../lib/open-file.js';
// ── Utilities ────────────────────────────────────────────────────────────────
/**
* Render a tool label (with backtick-wrapped arguments) as Lit nodes. Each
* backtick segment becomes a `<code>`; the segment that exactly matches `path`
* — the file a file-targeting tool acts on, supplied by the backend
* `target_path` — instead becomes a link that opens it in the file viewer.
* Lit auto-escapes text, so no manual HTML escaping is needed.
*/
function renderLabel(label, path) {
const out = [];
let rest = label || '';
while (rest.length) {
const open = rest.indexOf('`');
if (open === -1) { out.push(rest); break; }
if (open > 0) out.push(rest.slice(0, open));
rest = rest.slice(open + 1);
const close = rest.indexOf('`');
if (close === -1) { out.push('`' + rest); break; }
out.push(renderPath(rest.slice(0, close), path));
rest = rest.slice(close + 1);
}
return out;
}
/** A backtick segment: a clickable file link when it is the call's target path, else plain `<code>`. */
function renderPath(seg, path) {
if (!path || seg !== path) return html`<code>${seg}</code>`;
const open = (e) => { e.stopPropagation(); openFile(seg); };
return html`<span class="copilot-tool-path" role="button" tabindex="0"
title="Open in viewer"
@click=${open}
@keydown=${(e) => { if (e.key === 'Enter' || e.key === ' ') { e.preventDefault(); open(e); } }}
>${seg}</span>`;
}
export function truncate(s, max = 400) {
if (!s) return '';
const str = typeof s === 'string' ? s : JSON.stringify(s, null, 2);
return str.length > max ? str.slice(0, max) + '\n…' : str;
}
/**
* Pretty-prints a structured (`result_type === 'json'`) tool result for display.
* The backend stores `structuredContent` as a compact JSON string; re-indent it
* for readability, falling back to the raw string if it isn't valid JSON.
*/
function prettyJson(s) {
try { return JSON.stringify(JSON.parse(s), null, 2); }
catch { return s; }
}
// ── Diff ─────────────────────────────────────────────────────────────────────
export function renderDiff(oldText, newText) {
const oldLines = (oldText || '').split('\n');
const newLines = (newText || '').split('\n');
const m = oldLines.length, n = newLines.length;
const dp = Array.from({ length: m + 1 }, () => new Array(n + 1).fill(0));
for (let i = 1; i <= m; i++)
for (let j = 1; j <= n; j++)
dp[i][j] = oldLines[i-1] === newLines[j-1]
? dp[i-1][j-1] + 1
: Math.max(dp[i-1][j], dp[i][j-1]);
const ops = [];
let i = m, j = n;
while (i > 0 || j > 0) {
if (i > 0 && j > 0 && oldLines[i-1] === newLines[j-1]) {
ops.push({ type: 'eq', text: oldLines[i-1] }); i--; j--;
} else if (j > 0 && (i === 0 || dp[i][j-1] >= dp[i-1][j])) {
ops.push({ type: 'add', text: newLines[j-1] }); j--;
} else {
ops.push({ type: 'del', text: oldLines[i-1] }); i--;
}
}
ops.reverse();
const result = [];
let eqBuf = [];
const flushEq = () => {
if (eqBuf.length === 0) return;
if (eqBuf.length <= 6) {
result.push(html`<span class="diff-unchanged">${eqBuf.join('\n')}\n</span>`);
} else {
result.push(html`<span class="diff-unchanged">${eqBuf.slice(0, 3).join('\n')}\n</span>`);
result.push(html`<span class="diff-ellipsis">⋯ ${eqBuf.length - 6} unchanged lines ⋯</span>`);
result.push(html`<span class="diff-unchanged">\n${eqBuf.slice(-3).join('\n')}\n</span>`);
}
eqBuf = [];
};
for (const op of ops) {
if (op.type === 'eq') {
eqBuf.push(op.text);
} else {
flushEq();
const cls = op.type === 'add' ? 'diff-added' : 'diff-removed';
result.push(html`<span class="${cls}">${op.text}\n</span>`);
}
}
flushEq();
return result;
}
// ── Message renderers ────────────────────────────────────────────────────────
export function renderPendingWrite(host, msg) {
console.debug('[renderPendingWrite]', msg.path, 'old_len=' + (msg.old_content?.length ?? 0), 'new_len=' + (msg.new_content?.length ?? 0));
const isRejecting = host._rejectingId === msg.request_id;
return html`
<div class="copilot-approval copilot-approval--${msg.status}">
<div class="copilot-approval-header">
<i class="bi bi-pencil-square"></i>
<span class="copilot-approval-path copilot-tool-path" role="button" tabindex="0"
title="Open in viewer"
@click=${() => openFile(msg.path)}
@keydown=${(e) => { if (e.key === 'Enter' || e.key === ' ') { e.preventDefault(); openFile(msg.path); } }}
>${msg.path}</span>
${msg.status === 'pending'
? html`<span class="badge bg-warning text-dark ms-auto">Pending approval</span>`
: msg.status === 'approved'
? html`<span class="badge bg-success ms-auto">Approved</span>`
: html`<span class="badge bg-danger ms-auto">Rejected</span>`}
</div>
<pre class="copilot-diff">${renderDiff(msg.old_content, msg.new_content)}</pre>
${msg.status === 'pending' ? html`
<div class="copilot-approval-actions">
${isRejecting ? html`
<textarea
class="form-control form-control-sm copilot-reject-note"
rows="2"
placeholder="Optional: explain why you rejected this (sent to the LLM)"
.value=${host._rejectNote}
@input=${(e) => { host._rejectNote = e.target.value; }}
></textarea>
<div class="copilot-approval-btns">
<button class="btn btn-sm btn-danger" @click=${() => host._confirmReject(msg)}>
<i class="bi bi-x-circle me-1"></i>Confirm reject
</button>
<button class="btn btn-sm btn-outline-secondary" @click=${() => { host._rejectingId = null; }}>
Cancel
</button>
</div>
` : html`
<div class="copilot-approval-btns">
<button class="btn btn-sm btn-success" @click=${() => host._approve(msg)}>
<i class="bi bi-check-circle me-1"></i>Approve
</button>
<button class="btn btn-sm btn-outline-danger" @click=${() => host._startReject(msg)}>
<i class="bi bi-x-circle me-1"></i>Reject
</button>
<button class="btn btn-sm btn-outline-secondary" title="Approve and skip similar approvals for 15 minutes"
@click=${() => host._approveWriteBypass(msg, 900)}>
<i class="bi bi-clock me-1"></i>15 min
</button>
<button class="btn btn-sm btn-outline-secondary" title="Approve and skip all approvals for this session"
@click=${() => host._approveWriteBypass(msg, 0)}>
<i class="bi bi-arrow-repeat me-1"></i>Session
</button>
</div>
`}
</div>
` : nothing}
</div>
`;
}
export function renderTool(host, msg) {
const isOpen = host._expanded.has(msg.tool_call_id);
const argsStr = truncate(msg.arguments);
const isPending = msg.status === 'pending';
const isRejecting = isPending && host._rejectingId === msg.tool_call_id;
const statusIcon =
msg.status === 'running'
? html`<span class="spinner-border spinner-border-sm" role="status"></span>`
: isPending
? html`<span class="spinner-border spinner-border-sm text-warning" role="status" title="Awaiting approval"></span>`
: msg.status === 'done'
? html`<i class="bi bi-check-circle-fill text-success"></i>`
: msg.status === 'cancelled'
? html`<i class="bi bi-slash-circle-fill text-secondary" title="Cancelled by user"></i>`
: msg.status === 'rejected'
? html`<i class="bi bi-shield-fill-x text-warning" title="Denied by policy"></i>`
: html`<i class="bi bi-x-circle-fill text-danger"></i>`;
return html`
<div class="copilot-tool ${isPending ? 'copilot-tool--pending' : ''}">
<button class="copilot-tool-header" @click=${() => host._toggleExpand(msg.tool_call_id)}>
<span class="copilot-tool-status">${statusIcon}</span>
<span class="copilot-tool-name">${renderLabel(msg.label_full || msg.name, msg.path)}</span>
${isPending ? html`<span class="badge bg-warning text-dark ms-2">Pending approval</span>` : nothing}
<i class="bi bi-chevron-${isOpen ? 'up' : 'down'} ms-auto"></i>
</button>
${isOpen ? html`
<div class="copilot-tool-body">
${!(isPending && msg.name === 'ask_user_clarification') ? html`
<div class="copilot-tool-section">
<span class="copilot-tool-label">args</span>
<pre class="copilot-tool-pre">${argsStr}</pre>
</div>
` : nothing}
${isPending ? (msg.name === 'ask_user_clarification' ? html`
<div class="copilot-approval-actions">
${msg.question_title ? html`<div class="copilot-clarification-title">${msg.question_title}</div>` : nothing}
<div class="copilot-clarification-question copilot-markdown">${unsafeHTML(renderMarkdown(msg.question ?? msg.arguments?.question ?? ''))}</div>
${(msg.suggested_answers ?? []).length > 0 ? html`
<div class="copilot-clarification-chips">
${(msg.suggested_answers ?? []).map(s => html`
<button class="btn btn-sm btn-outline-secondary copilot-chip"
@click=${() => { host._clarificationAnswer = s; }}>
${s}
</button>
`)}
</div>
` : nothing}
<div class="copilot-clarification-input-row">
<textarea
class="form-control form-control-sm copilot-reject-note"
rows="2"
placeholder="Type your answer…"
.value=${host._clarificationAnswer}
@input=${(e) => { host._clarificationAnswer = e.target.value; }}
@keydown=${(e) => { if (e.key === 'Enter' && !e.shiftKey) { e.preventDefault(); host._answerQuestion(msg); } }}
></textarea>
<button class="btn btn-sm btn-primary ms-2"
@click=${() => host._answerQuestion(msg)}
?disabled=${!host._clarificationAnswer.trim()}>
<i class="bi bi-send me-1"></i>Send
</button>
</div>
</div>
` : html`
<div class="copilot-approval-actions">
${isRejecting ? html`
<textarea
class="form-control form-control-sm copilot-reject-note"
rows="2"
placeholder="Reason for rejection (optional, sent to the LLM)"
.value=${host._rejectNote}
@input=${(e) => { host._rejectNote = e.target.value; }}
></textarea>
<div class="copilot-approval-btns">
<button class="btn btn-sm btn-danger"
@click=${() => msg.request_id != null ? host._rejectWsTool(msg) : host._rejectTool(msg)}>
<i class="bi bi-x-circle me-1"></i>Confirm reject
</button>
<button class="btn btn-sm btn-outline-secondary"
@click=${() => { host._rejectingId = null; }}>
Cancel
</button>
</div>
` : html`
<div class="copilot-approval-btns">
<button class="btn btn-sm btn-success"
@click=${(e) => { e.stopPropagation(); msg.request_id != null ? host._approveWsTool(msg) : host._approveTool(msg); }}>
<i class="bi bi-check-circle me-1"></i>Approve
</button>
<button class="btn btn-sm btn-outline-danger"
@click=${(e) => { e.stopPropagation(); host._rejectingId = msg.tool_call_id; host._rejectNote = ''; }}>
<i class="bi bi-x-circle me-1"></i>Reject
</button>
${msg.request_id != null ? html`
<button class="btn btn-sm btn-outline-secondary" title="Approve and skip similar approvals for 15 minutes"
@click=${(e) => { e.stopPropagation(); host._approveWsToolBypass(msg, 900); }}>
<i class="bi bi-clock me-1"></i>15 min
</button>
<button class="btn btn-sm btn-outline-secondary" title="Approve and skip all approvals for this session"
@click=${(e) => { e.stopPropagation(); host._approveWsToolBypass(msg, 0); }}>
<i class="bi bi-arrow-repeat me-1"></i>Session
</button>
` : nothing}
</div>
`}
</div>
`) : msg.status !== 'running' ? (
msg.status === 'done' && msg.result_type === 'json' ? html`
<div class="copilot-tool-section">
<span class="copilot-tool-label copilot-tool-label--done">result · json</span>
<pre class="copilot-tool-pre copilot-tool-pre--done copilot-tool-pre--json">${
truncate(prettyJson(msg.result))
}</pre>
</div>
` : html`
<div class="copilot-tool-section">
<span class="copilot-tool-label copilot-tool-label--${msg.status}">
${msg.status === 'done' ? 'result' : 'error'}
</span>
<pre class="copilot-tool-pre copilot-tool-pre--${msg.status}">${
truncate(msg.status === 'done' ? msg.result : msg.error)
}</pre>
</div>
`) : nothing}
</div>
` : nothing}
</div>
`;
}
export function renderAgent(msg) {
const icon = msg.done ? 'check2-all' : 'arrow-right-circle';
return html`
<div class="copilot-agent" style="--agent-depth:${Math.min(msg.depth, 4)}">
<div class="copilot-agent-header">
<i class="bi bi-${icon}"></i>
<span>
<strong>${msg.parent_agent_id ?? 'main'}</strong>
<i class="bi bi-arrow-right mx-1" style="font-size:0.7rem"></i>
<strong>${msg.agent_id}</strong>
</span>
${msg.done ? html`<span class="copilot-agent-badge done">done</span>` : html`<span class="copilot-agent-badge running">running…</span>`}
</div>
${msg.prompt_preview ? html`
<pre class="copilot-agent-preview">${msg.prompt_preview}</pre>
` : nothing}
</div>
`;
}
export function renderAgentEnd(msg) {
return html`
<div class="copilot-agent-end" style="--agent-depth:${Math.min(msg.depth, 4)}">
<div class="copilot-agent-header">
<i class="bi bi-arrow-return-left"></i>
<span>
<strong>${msg.agent_id}</strong>
<i class="bi bi-arrow-right mx-1" style="font-size:0.7rem"></i>
<strong>${msg.parent_agent_id ?? 'main'}</strong>
</span>
<span class="copilot-agent-badge done">finished</span>
</div>
${msg.result_preview ? html`
<pre class="copilot-agent-preview copilot-agent-preview--result">${msg.result_preview}</pre>
` : nothing}
</div>
`;
}
function failedBadge() {
return html`<span class="copilot-failed-badge" title="This message is not sent to the LLM">
<i class="bi bi-exclamation-triangle-fill"></i>
</span>`;
}
// ── Attachment chips ───────────────────────────────────────────────────────────
/** Bootstrap icon class for a file based on its MIME type / extension. */
function attachmentIcon(att) {
const m = (att.mimetype || '').toLowerCase();
const n = (att.name || '').toLowerCase();
if (m.startsWith('image/')) return 'bi-file-earmark-image';
if (m === 'application/pdf' || n.endsWith('.pdf')) return 'bi-file-earmark-pdf';
if (m.startsWith('audio/')) return 'bi-file-earmark-music';
if (m.startsWith('video/')) return 'bi-file-earmark-play';
if (m.startsWith('text/') || /\.(md|txt|csv|json|ya?ml|rs|js|ts|py)$/.test(n)) return 'bi-file-earmark-text';
return 'bi-file-earmark';
}
/** Human-readable file size, e.g. "1.2 MB". */
function fmtSize(bytes) {
if (bytes == null) return '';
const u = ['B', 'KB', 'MB', 'GB'];
let i = 0, n = bytes;
while (n >= 1024 && i < u.length - 1) { n /= 1024; i++; }
return `${n < 10 && i > 0 ? n.toFixed(1) : Math.round(n)} ${u[i]}`;
}
/**
* Render a list of attachment chips. Used both above the composer (pending
* uploads — `removable`, with an × button and a spinner while uploading) and
* inside a sent user bubble (clickable to open the file). `host` must provide
* `_removeAttachment(i)` when `removable` is true.
*/
export function renderAttachmentChips(host, attachments, { removable = false } = {}) {
if (!attachments?.length) return nothing;
return html`
<div class="attach-chips">
${attachments.map((att, i) => html`
<div class="attach-chip ${att.uploading ? 'attach-chip--uploading' : ''} ${!removable && att.path ? 'attach-chip--clickable' : ''}"
title=${att.name}
@click=${() => { if (!removable && att.path) openFile(att.path); }}>
${att.uploading
? html`<span class="spinner-border spinner-border-sm"></span>`
: html`<i class="bi ${attachmentIcon(att)}"></i>`}
<span class="attach-chip-name">${att.name}</span>
${att.filesize != null ? html`<span class="attach-chip-size">${fmtSize(att.filesize)}</span>` : nothing}
${removable ? html`
<button class="attach-chip-remove" title="Remove"
@click=${(e) => { e.stopPropagation(); host._removeAttachment(i); }}>
<i class="bi bi-x"></i>
</button>` : nothing}
</div>
`)}
</div>`;
}
export function renderMsg(host, msg) {
try {
switch (msg.kind) {
case 'user':
return html`<div class="copilot-msg user ${msg.failed ? 'copilot-msg--failed' : ''}" style="white-space:pre-wrap">${msg.failed ? failedBadge() : nothing}${msg.content}${renderAttachmentChips(host, msg.attachments)}</div>`;
case 'thinking':
return html`
<div class="copilot-msg assistant copilot-markdown ${msg.failed ? 'copilot-msg--failed' : ''}">
${msg.failed ? failedBadge() : nothing}
${unsafeHTML(renderMarkdown(msg.content))}
${msg.input_tokens != null ? html`<div class="copilot-token-count">↑${msg.input_tokens.toLocaleString()} tok &nbsp;↓${msg.output_tokens?.toLocaleString()} tok</div>` : nothing}
</div>`;
case 'assistant':
return html`
<div class="copilot-msg assistant copilot-markdown ${msg.failed ? 'copilot-msg--failed' : ''}">
${msg.failed ? failedBadge() : nothing}
${unsafeHTML(renderMarkdown(msg.content))}
${msg.input_tokens != null ? html`<div class="copilot-token-count">↑${msg.input_tokens.toLocaleString()} tok &nbsp;↓${msg.output_tokens?.toLocaleString()} tok</div>` : nothing}
</div>`;
case 'error':
return html`
<div class="copilot-msg error">
<i class="bi bi-exclamation-triangle-fill me-1"></i>${msg.content}
</div>`;
case 'info':
return html`
<div class="copilot-msg info">
${msg.content}
</div>`;
case 'pending_write':
return renderPendingWrite(host, msg);
case 'tool':
return renderTool(host, msg);
case 'agent':
return renderAgent(msg);
case 'agent_end':
return renderAgentEnd(msg);
default:
return nothing;
}
} catch (err) {
console.error('[renderMsg] kind=' + msg.kind, err);
return html`<div class="copilot-msg error">Render error [${msg.kind}]: ${err.message}</div>`;
}
}