/**
 * @fileoverview File viewer rendering utilities (Task #2952).
 *
 * The right-hand tool-call detail panel on the task page renders
 * differently depending on the tool name:
 *
 *   - **write_file / write / create_file** → render the FULL content
 *     of the file as the user just wrote it (line-numbered, no
 *     truncation). Previously the panel mounted a Monaco placeholder
 *     that fetched the file from disk via /api/file-content — which
 *     could be truncated for large files and never reflected the
 *     content the tool call actually wrote.
 *
 *   - **edit_file / edit / edit_file_v2 / multi_edit_file / multi_edit
 *     / apply_patch** → render a git-style diff between
 *     `old_string` and `new_string` (LCS-based +/- lines). For these
 *     tools we want to highlight what changed, not show the entire
 *     resulting file again.
 *
 * Both renderers produce XSS-safe HTML — every user-controlled string
 * passes through {@link escapeHtml} before being injected.
 */
export type DiffOpType = "context" | "add" | "remove";
export interface DiffOp {
    type: DiffOpType;
    line: string;
    /** 1-indexed line number for display in the gutter. */
    lineNum: number;
}
/**
 * Render a write_file tool call's full content as line-numbered HTML.
 *
 * Returns a `<div class="file-viewer write-file">` containing:
 *   - a header with the file path + line/byte counts
 *   - a `<pre class="code-block">` with every line (no truncation)
 *
 * The renderer escapes HTML; long lines are preserved verbatim.
 */
export declare function renderWriteFileFull(opts: {
    path: string;
    content: string;
}): string;
/**
 * Render an edit_file tool call as a git-style unified diff.
 *
 * Returns a `<div class="file-viewer edit-file">` containing:
 *   - a header with the file path + line counts
 *   - a `<ol class="diff-body">` with LCS-derived +/- / context lines
 *     (legacy contract — pre-v2.5.12 callers look for `class="diff-body"`
 *     and `diff-line-(added|removed|context)` markers).
 *
 * If `old_string` and `new_string` are identical the result is just
 * the context lines (no +/- markers).
 *
 * The wrapper also carries `data-diff="<json>"` so the client
 * hydrator can rebuild the diff on click without re-parsing the DOM.
 */
export declare function renderEditFileDiff(opts: {
    path: string;
    old_string: string;
    new_string: string;
}): string;
/**
 * Compute a line-level diff using LCS (Longest Common Subsequence).
 *
 * Algorithm: classic O(N*M) DP table, then a single backtrack to
 * emit the ops in order. For inputs up to a few thousand lines this
 * is well within budget; for pathological inputs we accept the cost
 * (Task #2952 callers are user-authored file edits, not bulk
 * transforms).
 *
 * Output: ordered array of `{type, line, lineNum}` matching how an
 * editor would display them.
 */
export declare function computeLineDiff(oldLines: string[], newLines: string[]): DiffOp[];
//# sourceMappingURL=file-viewer-utils.d.ts.map