| 1 | // Per-tool presentation helpers. The kernel forwards every tool call the same way |
| 2 | // (name + raw-JSON args + output); these turn that generic payload into the |
| 3 | // recognizable one-liner, inline diff, and collapsed outcome each tool deserves — |
| 4 | // the recognizable "card" vocabulary the desktop uses. Kept pure (no React, no |
| 5 | // highlight.js) so ToolCard stays a renderer and the main bundle stays light. |
| 6 | |
| 7 | import { diffLines } from "./diff"; |
| 8 | import { t } from "./i18n"; |
| 9 | import { extToLang } from "./lang"; |
| 10 | import { isShellToolName } from "./shellToolIdentity"; |
| 11 | import type { DictKey } from "../locales/en"; |
| 12 | |
| 13 | export interface ToolDiff { |
| 14 | original: string; |
| 15 | modified: string; |
| 16 | lang: string; |
| 17 | label?: string; // multi_edit labels each step ("edit 1", …) |
| 18 | } |
| 19 | |
| 20 | export interface ToolFileDiff { |
| 21 | diff: string; |
| 22 | added: number; |
| 23 | removed: number; |
| 24 | } |
| 25 | |
| 26 | function parse(args: string): Record<string, unknown> { |
| 27 | try { |
| 28 | const value: unknown = JSON.parse(args); |
| 29 | return value !== null && typeof value === "object" && !Array.isArray(value) |
| 30 | ? value as Record<string, unknown> : {}; |
| 31 | } catch { |
| 32 | return {}; |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | function str(a: Record<string, unknown>, key: string): string { |
| 37 | return typeof a[key] === "string" ? (a[key] as string) : ""; |
| 38 | } |
| 39 | |
| 40 | function num(value: unknown): number { |
| 41 | return typeof value === "number" && Number.isFinite(value) && value > 0 ? Math.floor(value) : 0; |
| 42 | } |
| 43 | |
| 44 | export function fileDiffFromWire(value?: { diff?: unknown; added?: unknown; removed?: unknown }): ToolFileDiff | undefined { |
| 45 | const diff = typeof value?.diff === "string" ? value.diff : ""; |
| 46 | const added = num(value?.added); |
| 47 | const removed = num(value?.removed); |
| 48 | if (!diff && added === 0 && removed === 0) return undefined; |
| 49 | return { diff, added, removed }; |
| 50 | } |
| 51 | |
| 52 | export function summarizeFileDiff(fileDiff?: ToolFileDiff): string { |
| 53 | if (!fileDiff || (fileDiff.added === 0 && fileDiff.removed === 0)) return ""; |
| 54 | return `+${fileDiff.added} -${fileDiff.removed}`; |
| 55 | } |
| 56 | |
| 57 | // subjectOf pulls the most informative one-liner out of a call's args — the |
| 58 | // command for bash, the pattern for search, the path for file tools, the |
| 59 | // description for a sub-task — so the collapsed row reads at a glance. |
| 60 | export function subjectOf(name: string, args: string): string { |
| 61 | if (isShellToolName(name)) name = "bash"; |
| 62 | const a = parse(args); |
| 63 | switch (name) { |
| 64 | case "bash": |
| 65 | return str(a, "command"); |
| 66 | case "grep": |
| 67 | case "glob": |
| 68 | return str(a, "pattern") || str(a, "path"); |
| 69 | case "web_fetch": |
| 70 | return str(a, "url"); |
| 71 | case "web_search": |
| 72 | return str(a, "query"); |
| 73 | case "task": |
| 74 | return str(a, "description") || str(a, "prompt"); |
| 75 | case "run_skill": |
| 76 | return str(a, "name"); |
| 77 | case "move_file": { |
| 78 | const src = str(a, "source_path"); |
| 79 | const dst = str(a, "destination_path"); |
| 80 | return src && dst ? `${src} -> ${dst}` : src || dst; |
| 81 | } |
| 82 | case "remember": |
| 83 | return str(a, "name") || str(a, "description"); |
| 84 | case "todo_write": |
| 85 | case "exit_plan_mode": |
| 86 | return ""; // these get dedicated cards, not a subject line |
| 87 | case "use_capability": |
| 88 | // Stable MCP proxy: show the capability id as the collapsed subject so |
| 89 | // Planner/Delivery cards read as "MCP · mcp-tool:server/tool". |
| 90 | return str(a, "capability_id") || str(a, "action"); |
| 91 | default: |
| 92 | return str(a, "path") || str(a, "file_path"); |
| 93 | } |
| 94 | } |
| 95 | |
| 96 | // diffsFor returns the before/after pairs a writer tool's card renders inline: |
| 97 | // edit_file is one pair, write_file is an all-add (empty original), multi_edit is |
| 98 | // one pair per step. Returns [] for non-writers, so the card folds args/output |
| 99 | // away instead. |
| 100 | export function diffsFor(name: string, args: string): ToolDiff[] { |
| 101 | const a = parse(args); |
| 102 | const lang = extToLang(str(a, "path") || str(a, "file_path")); |
| 103 | if (name === "edit_file") { |
| 104 | if (typeof a.old_string === "string" && typeof a.new_string === "string") { |
| 105 | return [{ original: a.old_string, modified: a.new_string, lang }]; |
| 106 | } |
| 107 | } |
| 108 | if (name === "write_file" && typeof a.content === "string") { |
| 109 | return [{ original: "", modified: a.content, lang }]; |
| 110 | } |
| 111 | if (name === "multi_edit" && Array.isArray(a.edits)) { |
| 112 | const out: ToolDiff[] = []; |
| 113 | (a.edits as unknown[]).forEach((e, i) => { |
| 114 | const step = e as Record<string, unknown>; |
| 115 | if (typeof step?.old_string === "string" && typeof step?.new_string === "string") { |
| 116 | out.push({ original: step.old_string, modified: step.new_string, lang, label: `edit ${i + 1}` }); |
| 117 | } |
| 118 | }); |
| 119 | return out; |
| 120 | } |
| 121 | return []; |
| 122 | } |
| 123 | |
| 124 | export function languageForToolArgs(args: string): string { |
| 125 | const a = parse(args); |
| 126 | return extToLang(str(a, "path") || str(a, "file_path")); |
| 127 | } |
| 128 | |
| 129 | export type TodoStatus = "pending" | "in_progress" | "completed"; |
| 130 | |
| 131 | export interface Todo { |
| 132 | content: string; |
| 133 | status: TodoStatus | string; |
| 134 | } |
| 135 | |
| 136 | function plusMinus(original: string, modified: string): { add: number; del: number } { |
| 137 | let add = 0; |
| 138 | let del = 0; |
| 139 | for (const r of diffLines(original, modified)) { |
| 140 | if (r.type === "add") add++; |
| 141 | else if (r.type === "del") del++; |
| 142 | } |
| 143 | return { add, del }; |
| 144 | } |
| 145 | |
| 146 | // lineCount counts lines, ignoring a single trailing newline so "a\n" reads as 1. |
| 147 | function lineCount(s: string): number { |
| 148 | if (!s) return 0; |
| 149 | const t = s.endsWith("\n") ? s.slice(0, -1) : s; |
| 150 | return t === "" ? 0 : t.split("\n").length; |
| 151 | } |
| 152 | |
| 153 | function nonEmptyLines(s: string): number { |
| 154 | return s.split("\n").filter((l) => l.trim() !== "").length; |
| 155 | } |
| 156 | |
| 157 | // countOf renders a localized "N <noun>" using the singular/plural key pair (zh |
| 158 | // collapses both to one form). Lives here, not the dict, so the counted phrasing |
| 159 | // stays a translation concern. |
| 160 | function countOf(n: number, one: DictKey, other: DictKey): string { |
| 161 | return t(n === 1 ? one : other, { n }); |
| 162 | } |
| 163 | |
| 164 | function hasReplaceAllEdit(edits: Record<string, unknown>[]): boolean { |
| 165 | return edits.some((e) => e?.replace_all === true); |
| 166 | } |
| 167 | |
| 168 | function multiEditAppliedSummary(output: string): string { |
| 169 | const match = output.match(/:\s*(\d+)\s+edits applied \((\d+)\s+total replacements\)/); |
| 170 | if (!match) return ""; |
| 171 | const edits = Number(match[1]); |
| 172 | const replacements = Number(match[2]); |
| 173 | if (!Number.isFinite(edits) || !Number.isFinite(replacements)) return ""; |
| 174 | return `${countOf(edits, "tool.editOne", "tool.editOther")} · ${countOf(replacements, "tool.replacementOne", "tool.replacementOther")}`; |
| 175 | } |
| 176 | |
| 177 | // summarize derives the one-line outcome shown under a finished card (the "⎿" |
| 178 | // secondary line) — counts from the args for writers, from the output for |
| 179 | // readers. "" means there's nothing worth a summary line. |
| 180 | export function summarize(name: string, args: string, output?: string, error?: string): string { |
| 181 | if (isShellToolName(name)) name = "bash"; |
| 182 | if (error) return ""; |
| 183 | const a = parse(args); |
| 184 | switch (name) { |
| 185 | case "write_file": |
| 186 | return typeof a.content === "string" ? countOf(lineCount(a.content), "tool.lineOne", "tool.lineOther") : ""; |
| 187 | case "edit_file": { |
| 188 | if (typeof a.old_string === "string" && typeof a.new_string === "string") { |
| 189 | const { add, del } = plusMinus(a.old_string, a.new_string); |
| 190 | return `+${add} -${del}`; |
| 191 | } |
| 192 | return ""; |
| 193 | } |
| 194 | case "multi_edit": { |
| 195 | const edits = Array.isArray(a.edits) ? (a.edits as Record<string, unknown>[]) : []; |
| 196 | if (hasReplaceAllEdit(edits)) { |
| 197 | return output ? multiEditAppliedSummary(output) : ""; |
| 198 | } |
| 199 | let add = 0; |
| 200 | let del = 0; |
| 201 | for (const e of edits) { |
| 202 | if (typeof e?.old_string === "string" && typeof e?.new_string === "string") { |
| 203 | const pm = plusMinus(e.old_string, e.new_string); |
| 204 | add += pm.add; |
| 205 | del += pm.del; |
| 206 | } |
| 207 | } |
| 208 | return `${countOf(edits.length, "tool.editOne", "tool.editOther")} · +${add} -${del}`; |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | if (!output) return ""; |
| 213 | switch (name) { |
| 214 | case "read_file": { |
| 215 | if (output.startsWith("(empty file)")) return t("tool.emptyFile"); |
| 216 | const arrows = (output.match(/→/g) || []).length; |
| 217 | return countOf(arrows || lineCount(output), "tool.lineOne", "tool.lineOther"); |
| 218 | } |
| 219 | case "grep": |
| 220 | return countOf(nonEmptyLines(output), "tool.matchOne", "tool.matchOther"); |
| 221 | case "glob": |
| 222 | return countOf(nonEmptyLines(output), "tool.fileOne", "tool.fileOther"); |
| 223 | case "ls": |
| 224 | return countOf(nonEmptyLines(output), "tool.entryOne", "tool.entryOther"); |
| 225 | case "web_fetch": |
| 226 | return output.split("\n", 1)[0].slice(0, 80); |
| 227 | case "bash": |
| 228 | return output.trim() === "" ? t("tool.noOutput") : countOf(lineCount(output), "tool.lineOne", "tool.lineOther"); |
| 229 | default: |
| 230 | return ""; |
| 231 | } |
| 232 | } |
| 233 |