// omp-edit Web client: render hashline / patch edits with DSH's own tool-row chrome.
//
// The stock `edit` row derives its diff from `file_path` + `old_string`/`new_string` arguments.
// Hashline, sloppy and apply_patch calls carry one `input` string instead, so the stock row falls
// back to raw JSON. This keyed toolview (priority -1 shadows the stock one) renders the applied
// hunks the host persists in `meta.diffs`.
//
// It is assembled from the same parts as the stock ToolRow + DiffBlock so it lines up with every
// other tool row: the DisclosureRow / TextShimmer / Tooltip primitives and icons, the turn-scoped
// `useDisclosure` open state (collapsed by default), the dotted file link that opens the file,
// the small `+N -M` stat that only takes color on hover/expand, the red first-line error summary
// with an Output card, and a code card whose rules are copied from CodeCard/DiffBlock.module.css
// (language header with icon actions, 22px rows, inset +/- bar, head/tail fold at 9 rows).
// The one addition is the old/new line-number gutter, from the `oldStart`/`newStart`/`rows` the
// host attaches to every hunk (older results without them render un-numbered, like stock).
window.__ModuleLoader__.load({
  id: '@local/omp-edit',
  factory(require) {
    const React = require('react');
    const P = require('@deepseek-ai/dsh-client-ui-primitives');
    const h = React.createElement;
    const Fragment = React.Fragment;

    /** Rows shown before the fold, as in the stock chat diff card (CHAT_DIFF_MAX_LINES). */
    const MAX_LINES = 9;

    // Rules mirror ToolRow.module.css, CodeCard.module.css and DiffBlock.module.css of DSH.
    const CSS = `
.ompe-root{display:flex;flex-direction:column}
.ompe-leading{flex-shrink:0}
.ompe-title{font-weight:400}
.ompe-sep{background:var(--dsw-alias-label-caption);border-radius:1px;flex:none;width:2px;height:2px;margin:0 8px}
.ompe-summary{text-overflow:ellipsis;white-space:nowrap;min-width:0;font-size:var(--dsh-content-font-size-secondary,13px);line-height:calc(24px + var(--dsh-content-font-delta,0px));flex:auto;overflow:hidden}
.ompe-error-summary{color:var(--dsw-alias-state-error-primary)}
.ompe-stopped-summary{color:var(--dsw-alias-state-warn-label)}
.ompe-file{text-overflow:ellipsis;white-space:nowrap;min-width:0;font:inherit;text-align:left;font-size:var(--dsh-content-font-size-secondary,13px);line-height:calc(24px + var(--dsh-content-font-delta,0px));color:inherit;text-underline-offset:3px;cursor:pointer;background:0 0;border:none;flex:0 auto;margin:0;padding:0;text-decoration:underline 1px dotted;overflow:hidden}
.ompe-suffix{white-space:nowrap;font-size:var(--dsh-content-font-size-secondary,13px);line-height:calc(24px + var(--dsh-content-font-delta,0px));flex:none;margin-left:4px}
.ompe-stat{font-family:var(--ds-font-family-code);font-size:calc(var(--dsh-content-font-size-secondary,13px) - 2px);margin-left:10px;transform:translateY(.5px)}
.ompe-row:is(:hover,[aria-expanded=true]) .ompe-added{color:var(--dsw-alias-state-success-primary)}
.ompe-row:is(:hover,[aria-expanded=true]) .ompe-removed{color:var(--dsw-alias-state-error-primary)}
.ompe-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}
.ompe-body-wrap{flex-direction:column;display:flex}
.ompe-inspect{border:.5px solid var(--dsw-alias-border-l3);background:var(--dsw-alias-bg-base);color:var(--dsw-alias-label-secondary);cursor:pointer;opacity:0;border-radius:999px;align-self:flex-start;align-items:center;gap:4px;margin:4px 0 2px 4px;padding:2px 8px;font-size:11px;line-height:16px;transition:opacity .1s;display:inline-flex}
.ompe-root:hover .ompe-inspect,.ompe-inspect:focus-visible{opacity:1}
.ompe-inspect:hover{background:var(--dsw-alias-interactive-bg-hover-solid);color:var(--dsw-alias-label-primary)}
.ompe-io-card{border:.5px solid var(--dsw-alias-border-l1);border-radius:var(--dsw-radius-lg);background:var(--dsw-alias-markdown-code-block);font:var(--dsw-font-markdown-code-block-small);flex-direction:column;margin:4px 0 4px 4px;display:flex}
.ompe-io-section{grid-template-columns:max-content 1fr;align-items:baseline;column-gap:14px;max-height:150px;padding:12px 16px;display:grid;overflow-y:auto}
.ompe-io-label{color:var(--dsw-alias-label-caption);align-self:start;position:sticky;top:0}
.ompe-io-text{white-space:pre-wrap;word-break:break-word;min-width:0;color:var(--dsw-alias-label-secondary)}
.ompe-io-text[data-error]{color:var(--dsw-alias-state-error-primary)}
.ompe-card{position:relative;margin:4px 0 4px 4px;overflow:hidden;color:var(--dsw-alias-label-primary);background:var(--dsw-alias-markdown-code-block);border-radius:var(--dsw-radius-lg);font:var(--dsw-font-markdown-code-block)}
.ompe-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 18px 8px 22px;background:var(--dsl-code-block-background,var(--dsw-alias-markdown-code-block));border-top-left-radius:inherit;border-top-right-radius:inherit;color:var(--dsw-alias-label-secondary);font:11px/18px var(--dsw-font-family)}
.ompe-card-heading{display:flex;align-items:baseline;gap:12px;min-width:0}
.ompe-card-lang{color:var(--dsw-alias-label-tertiary);flex:none;font-family:var(--ds-font-family-code)}
.ompe-card-actions{display:flex;align-items:center;gap:4px;flex:none}
.ompe-card-action{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;padding:0;border:0;border-radius:var(--dsw-radius-sm);color:var(--dsw-alias-label-secondary);background:transparent;cursor:pointer}
.ompe-card-action:hover{background:var(--dsw-alias-interactive-bg-hover)}
.ompe-card-action:focus-visible{outline:1px solid var(--dsw-focus-ring-color,var(--dsw-alias-state-business-primary));outline-offset:2px}
.ompe-body{display:grid;grid-template-columns:minmax(max-content,1fr);padding:6px 0 20px;font:var(--dsw-font-markdown-code-block);overflow-x:auto}
.ompe-body[data-numbered]{grid-template-columns:auto auto minmax(max-content,1fr)}
.ompe-card[data-code-wrap=true] .ompe-body{grid-template-columns:minmax(0,1fr)}
.ompe-card[data-code-wrap=true] .ompe-body[data-numbered]{grid-template-columns:auto auto minmax(0,1fr)}
.ompe-l{display:contents}
.ompe-full,.ompe-ln,.ompe-code{box-sizing:border-box;min-height:1lh;white-space:pre}
.ompe-full{grid-column:1/-1;padding:0 22px}
.ompe-code{padding:0 22px}
.ompe-body[data-numbered] .ompe-code{padding-left:12px}
.ompe-ln{padding:0 0 0 12px;text-align:right;font-variant-numeric:tabular-nums;user-select:none}
.ompe-ln:first-child{padding-left:22px}
.ompe-card[data-code-wrap=true] .ompe-code,.ompe-card[data-code-wrap=true] .ompe-full{white-space:pre-wrap;overflow-wrap:anywhere}
.ompe-path{color:var(--dsw-alias-label-secondary);font-weight:500}
.ompe-gap{color:var(--dsw-alias-label-tertiary)}
.ompe-del>*{color:var(--dsw-alias-state-error-primary);background:var(--dsw-alias-code-diff-deleted)}
.ompe-del>:first-child{box-shadow:inset 3px 0 0 var(--dsw-alias-state-error-primary)}
.ompe-del>.ompe-code::before{content:'- '}
.ompe-add>*{color:var(--dsw-alias-state-success-primary);background:var(--dsw-alias-code-diff-added)}
.ompe-add>:first-child{box-shadow:inset 3px 0 0 var(--dsw-alias-state-success-primary)}
.ompe-add>.ompe-code::before{content:'+ '}
.ompe-ctx>*{color:var(--dsw-alias-label-secondary)}
.ompe-ctx>.ompe-code::before{content:'  '}
.ompe-l>.ompe-ln{color:var(--dsw-alias-label-tertiary)}
.ompe-expand{grid-column:1/-1;display:block;width:100%;padding:0 22px;border:none;background:transparent;color:var(--dsw-alias-label-tertiary);cursor:pointer;font:inherit;text-align:left}
.ompe-expand:hover{color:var(--dsw-alias-label-secondary)}
`;
    if (typeof document !== 'undefined' && !document.querySelector('style[data-plugin-css="@local/omp-edit"]')) {
      const s = document.createElement('style');
      s.dataset.plugin = '@local/omp-edit';
      s.dataset.pluginCss = '@local/omp-edit';
      s.textContent = CSS;
      document.head.appendChild(s);
    }

    const none = () => null;
    const IconEdit = P.IconEditOutlineRegular || none;
    const IconWrap = P.IconWrapFillRegular || none;
    const IconNowrap = P.IconNowrapFillRegular || none;
    const IconCopy = P.IconCopyOutlineRegular || none;
    const IconCheck = P.IconCheckOutlineRegular || none;
    const IconInspect = P.IconInspectOutlineRegular || null;
    const Tooltip = P.Tooltip || (({ children }) => children);
    const Shimmer = P.TextShimmer || (({ children, className }) => h('span', { className }, children));
    const EDIT_ICON = h(IconEdit, { size: 14 });

    const cls = (...xs) => xs.filter(Boolean).join(' ');
    /** Locale lookup with a fallback for keys a DSH build may lack. */
    const tr = (t, key, fallback, params) => {
      const v = typeof t === 'function' ? t(key, params) : undefined;
      return typeof v === 'string' && v !== '' && v !== key ? v : fallback;
    };
    const firstLine = (s) => { const i = s.indexOf('\n'); return i === -1 ? s : s.slice(0, i); };

    function displayPath(p, cwd, home) {
      let out = p;
      if (cwd) {
        const root = cwd.replace(/[/\\]+$/, '');
        if (out.startsWith(`${root}/`)) out = out.slice(root.length + 1);
      }
      if (home) {
        const root = home.replace(/\/+$/, '');
        if (root && root !== '/' && out.startsWith(`${root}/`)) out = `~${out.slice(root.length)}`;
      }
      return out;
    }

    function readDiffs(meta) {
      const d = meta && typeof meta === 'object' && Array.isArray(meta.diffs) ? meta.diffs : [];
      return d.filter((x) => x && typeof x.path === 'string' && typeof x.newText === 'string' && (x.oldText === null || typeof x.oldText === 'string'));
    }

    /** Hunk → numbered rows. Uses host-provided rows/starts; falls back to a naive old/new split. */
    function hunkRows(d) {
      const rows = Array.isArray(d.rows) ? d.rows : [
        ...(d.oldText === null ? [] : d.oldText.split('\n').map((t) => ['-', t])),
        ...d.newText.split('\n').map((t) => ['+', t]),
      ];
      const numbered = Number.isInteger(d.oldStart) && Number.isInteger(d.newStart);
      let o = d.oldStart; let n = d.newStart;
      return rows.map(([op, text]) => {
        const row = { kind: op === '+' ? 'add' : op === '-' ? 'del' : 'ctx', text, old: '', neu: '' };
        if (numbered) {
          if (op !== '+') row.old = String(o++);
          if (op !== '-') row.neu = String(n++);
        }
        return row;
      });
    }

    /** Flatten hunks like DiffBlock: a path header per new file, `⋯` between same-file hunks. */
    function buildRows(diffs) {
      const out = [];
      let prev;
      for (const d of diffs) {
        out.push(d.path !== prev ? { kind: 'path', text: d.path } : { kind: 'gap', text: '⋯' });
        prev = d.path;
        out.push(...hunkRows(d));
      }
      return out;
    }

    const totals = (rows) => rows.reduce((a, r) => ({ added: a.added + (r.kind === 'add'), removed: a.removed + (r.kind === 'del') }), { added: 0, removed: 0 });

    /** Files named by the call arguments (hashline headers, apply_patch markers, or file_path). */
    function argFiles(argsRaw) {
      try {
        const a = JSON.parse(argsRaw || '{}');
        if (typeof a.file_path === 'string') return [a.file_path];
        if (typeof a.path === 'string') return [a.path];
        if (typeof a.input === 'string') {
          const files = [...a.input.matchAll(/^\[(.+?)#[0-9A-Fa-f]{4}\]\s*$/gm)].map((m) => m[1]);
          const more = [...a.input.matchAll(/^\*\*\* (?:Edit|Update|Add|Delete) File:\s*(.+?)(?:\s+all)?\s*$/gm)].map((m) => m[1]);
          return [...new Set([...files, ...more])];
        }
      } catch { /* partial arguments */ }
      return [];
    }

    /** Mirrors the stock resultText: text parts, other blocks as JSON, else the error name/code. */
    function resultText(block) {
      const parts = [];
      for (const c of Array.isArray(block.content) ? block.content : []) parts.push(c.type === 'text' ? c.text : JSON.stringify(c, null, 2));
      if (!parts.length && block.error) parts.push(`${block.error.name}: ${block.error.code}`);
      return parts.join('\n');
    }

    const copyText = (rows) => rows.map((r) => (r.kind === 'add' ? `+ ${r.text}` : r.kind === 'del' ? `- ${r.text}` : r.kind === 'ctx' ? `  ${r.text}` : r.text)).join('\n');

    function DiffCard({ rows, paths, t }) {
      const [expanded, setExpanded] = React.useState(false);
      const [copied, setCopied] = React.useState(false);
      const [wrapped, setWrapped] = React.useState(false);
      const langs = paths.map((p) => (typeof P.languageForPath === 'function' ? P.languageForPath(p) : undefined));
      const lang = langs.every((l) => l === langs[0]) ? langs[0] : undefined;
      const numbered = rows.some((r) => r.old || r.neu);
      const onCopy = React.useCallback(() => {
        if (copied) return;
        const text = copyText(rows);
        const write = typeof P.writeClipboard === 'function'
          ? P.writeClipboard(text)
          : (navigator.clipboard?.writeText(text) ?? Promise.reject()).then(() => true);
        Promise.resolve(write).then((ok) => {
          if (!ok) return;
          setCopied(true);
          window.setTimeout(() => setCopied(false), 1000);
        }).catch(() => {});
      }, [copied, rows]);

      const hidden = rows.length - MAX_LINES;
      const capped = hidden > 0 && !expanded;
      const headN = Math.ceil(MAX_LINES / 2);
      const head = capped ? rows.slice(0, headN) : rows;
      const tail = capped ? rows.slice(rows.length - (MAX_LINES - headN)) : [];
      const line = (prefix) => (r, i) => (r.kind === 'path' || r.kind === 'gap'
        ? h('div', { key: prefix + i, className: `ompe-full ompe-${r.kind}` }, r.text)
        : h('div', { key: prefix + i, className: `ompe-l ompe-${r.kind}` },
          numbered ? h('span', { className: 'ompe-ln' }, r.old) : null,
          numbered ? h('span', { className: 'ompe-ln' }, r.neu) : null,
          h('span', { className: 'ompe-code' }, r.text)));

      const wrapLabel = tr(t, 'codeBlock.wrap', 'Wrap');
      const unwrapLabel = tr(t, 'codeBlock.unwrap', 'No wrap');
      const copyLabel = copied ? tr(t, 'copied', 'Copied') : tr(t, 'copy', 'Copy');
      return h('div', { className: 'ompe-card', 'data-diff': '', 'data-code-wrap': wrapped },
        h('div', { className: 'ompe-card-head', 'data-code-block-banner': true },
          h('div', { className: 'ompe-card-heading' },
            h('span', { className: 'ompe-card-lang' }, lang || tr(t, 'codeBlock.title', 'Code'))),
          h('div', { className: 'ompe-card-actions' },
            h(Tooltip, { label: wrapped ? unwrapLabel : wrapLabel, side: 'top', portal: true },
              h('button', { type: 'button', className: 'ompe-card-action', 'aria-label': wrapLabel, 'aria-pressed': wrapped, onClick: () => setWrapped((v) => !v) },
                h(wrapped ? IconNowrap : IconWrap, { size: 14 }))),
            h(Tooltip, { label: copyLabel, side: 'top', portal: true },
              h('button', { type: 'button', className: 'ompe-card-action', 'aria-label': copyLabel, onClick: onCopy },
                h(copied ? IconCheck : IconCopy, { size: 14 }))))),
        h('div', { className: 'ompe-body', 'data-numbered': numbered ? '' : undefined },
          head.map(line('h')),
          hidden > 0 ? h('button', {
            type: 'button',
            className: 'ompe-expand',
            'aria-expanded': expanded,
            'aria-label': expanded ? tr(t, 'diff.collapseAria', 'Collapse diff') : tr(t, 'diff.expandAria', `Show ${hidden} more lines`, { count: hidden }),
            onClick: () => setExpanded((v) => !v),
          }, expanded ? tr(t, 'collapse', 'Collapse') : tr(t, 'diff.expandRest', `⋯ ${hidden} more lines`, { count: hidden })) : null,
          tail.map(line('t'))));
    }

    function useLocalDisclosure() {
      const [expanded, setExpanded] = React.useState(false);
      const toggle = React.useCallback(() => setExpanded((v) => !v), []);
      return { expanded, setExpanded, toggle };
    }

    const stopKeys = (e) => { if (e.key === 'Enter' || e.key === ' ') e.stopPropagation(); };

    /** The shared row: DisclosureRow + summary/stat chrome exactly like the stock ToolRow. */
    function Row({ props, state, summary, filePath, stat, body }) {
      const { t, toolName, openFile, inspect } = props;
      const disclosure = (typeof props.useDisclosure === 'function' ? props.useDisclosure : useLocalDisclosure)();
      const expandable = state !== 'preparing' && body !== null;
      const open = disclosure.expanded && expandable;
      const settledWithCue = state === 'error' || state === 'stopped';
      const onOpen = React.useMemo(() => (filePath && typeof openFile === 'function' && !settledWithCue
        ? (e) => { e.stopPropagation(); openFile(filePath); } : undefined), [filePath, openFile, settledWithCue]);
      const suffix = settledWithCue ? null : stat;
      const status = state === 'preparing' ? tr(t, 'row.preparing', '')
        : state === 'running' ? tr(t, 'row.running', '')
          : state === 'error' ? tr(t, 'row.failed', '')
            : state === 'stopped' ? tr(t, 'row.stopped', '') : '';

      const collapsed = summary !== '' ? h(Fragment, null,
        h('span', { className: 'ompe-sep', 'data-shimmer-decoration': true, 'aria-hidden': true }),
        onOpen
          ? h('button', { type: 'button', className: 'ompe-file', onClick: onOpen, onKeyDown: stopKeys }, h(Shimmer, null, summary))
          : h('span', { className: cls('ompe-summary', state === 'error' && 'ompe-error-summary', state === 'stopped' && 'ompe-stopped-summary') }, h(Shimmer, null, summary)),
        suffix ? h(Shimmer, { className: 'ompe-suffix ompe-stat' }, h(Fragment, null,
          h('span', { className: 'ompe-added' }, `+${suffix.added}`), ' ',
          h('span', { className: 'ompe-removed' }, `-${suffix.removed}`))) : null) : null;

      const expanded = open ? h('div', { className: 'ompe-body-wrap' },
        body,
        typeof inspect === 'function' ? h('button', { type: 'button', className: 'ompe-inspect', onClick: inspect },
          IconInspect ? h(IconInspect, {}) : null, tr(t, 'row.inspect', 'Inspect')) : null) : undefined;

      const title = tr(t, 'tool.title.edit', 'Edit');
      const D = P.DisclosureRow;
      return h('div', { className: 'ompe-root', 'data-variant': 'edit', 'data-tool': toolName, 'data-state': state },
        status ? h('span', { className: 'ompe-hidden' }, status) : null,
        D
          ? h(D, {
            rowClassName: 'ompe-row',
            leadingClassName: 'ompe-leading',
            titleClassName: 'ompe-title',
            icon: EDIT_ICON,
            title,
            running: state === 'running' || state === 'preparing',
            open,
            expandable,
            expandOnRowClick: true,
            keepContentWhenOpen: true,
            onToggle: disclosure.toggle,
            collapsedContent: collapsed,
            children: expanded,
          })
          : h(Fragment, null,
            h('div', { className: 'ompe-row', role: 'button', tabIndex: 0, 'aria-expanded': open, onClick: disclosure.toggle, style: { display: 'flex', alignItems: 'center' } },
              h('span', { className: 'ompe-leading' }, EDIT_ICON), h('span', { className: 'ompe-title' }, title), collapsed),
            expanded));
    }

    function PreparingEditRow(props) {
      const raw = typeof props.useToolCallArgumentsPartial === 'function' ? props.useToolCallArgumentsPartial() : '';
      const summary = raw ? tr(props.t, 'tool.preparing.content', '', { kilobytes: Math.ceil(raw.length / 1024) }) : '';
      return h(Row, { props, state: 'preparing', summary, filePath: undefined, stat: null, body: null });
    }

    function StartedEditRow(props) {
      const { block, cwd, home, t } = props;
      const done = !!block && 'kind' in block;
      const state = !done ? 'running' : block.error?.code === 'interrupted' ? 'stopped' : block.isError ? 'error' : 'ok';
      const diffs = React.useMemo(() => (done && !block.isError ? readDiffs(block.meta) : []), [done, block]);
      const rows = React.useMemo(() => buildRows(diffs), [diffs]);
      const argsRaw = (done ? block.call?.argsRaw : block?.argsRaw) ?? '';
      const paths = diffs.length ? [...new Set(diffs.map((d) => d.path))] : argFiles(argsRaw);
      const output = done ? resultText(block) || null : null;
      const base = paths.map((p) => displayPath(p, cwd, home)).join(', ');
      const summary = state === 'error' && output !== null ? firstLine(output) : base;
      const stat = React.useMemo(() => (rows.length ? totals(rows) : null), [rows]);
      const body = rows.length
        ? h(DiffCard, { rows, paths, t })
        : output !== null
          ? h('div', { className: 'ompe-io-card' },
            h('div', { className: 'ompe-io-section' },
              h('span', { className: 'ompe-io-label' }, tr(t, 'row.output', 'Output')),
              h('span', { className: 'ompe-io-text', 'data-error': state === 'error' || undefined }, output)))
          : null;
      return h(Row, { props, state, summary, filePath: paths.length === 1 ? paths[0] : undefined, stat, body });
    }

    /** Split by phase like the stock FileMutationRow so hook order never changes within one component. */
    function EditRow(props) {
      const preparing = props.phase === 'preparing' || (props.block && !('kind' in props.block) && props.block.phase === 'preparing');
      return preparing ? h(PreparingEditRow, props) : h(StartedEditRow, props);
    }

    return {
      inject: ['slots'],
      apply(ctx) {
        ctx.slots.inject('tool.call.toolview', () => ctx.slots.register({
          name: 'tool.call.toolview',
          key: 'edit',
          locale: 'conversation',
          priority: -1,
        }, EditRow));
      },
    };
  },
});