import * as improvements from '../../../db/repos/improvements.js';
import { recordAudit } from '../../../db/repos/audit.js';

// Dross's hands on the Void itself — CSS layer only, owner-approved, instantly
// rollbackable (2.14: "empowered, with a leash"). Server code stays untouchable.
export const proposeImprovementTool = {
  name: 'propose_improvement',
  description: 'Propose a visual improvement to the Void itself as CSS. NEVER applies directly — the owner approves it in Settings → Dross improvements, and can roll it back instantly. CSS only: no url()/@import. Target existing classes (inspect via context first). Keep each improvement small and single-purpose so rollback stays surgical.',
  input_schema: {
    type: 'object',
    properties: {
      summary: { type: 'string', description: 'one line: what this changes and why (shown to the owner)' },
      css: { type: 'string', description: 'the CSS rules, complete and self-contained' }
    },
    required: ['summary', 'css']
  },
  async handler({ summary, css }, ctx) {
    const err = improvements.validateCss(css);
    if (err) return { error: err };
    if (!summary?.trim()) return { error: 'summary required' };
    const row = await improvements.create({ summary, css });
    await recordAudit({ kind: 'agent', id: ctx.agent?.id ?? null }, 'suggest', 'improvement', row.id, null, { summary });
    return {
      ok: true, id: row.id,
      note: 'Drafted as a pending improvement. It is NOT live — the owner must approve it in Settings → Dross improvements. Say so plainly.'
    };
  }
};