opencode/packages/app/src/pages/session/timeline/projection.ts
2026-07-24 11:56:48 +08:00

79 lines
2.7 KiB
TypeScript

import type { SessionMessageInfo } from "@opencode-ai/client/promise"
import type { AssistantMessage, Message, Part, SessionStatus, UserMessage } from "@opencode-ai/sdk/v2"
import { createMemo, type Accessor } from "solid-js"
import { reuseTimelineRows } from "./row-reconciliation"
import { Timeline, TimelineRow } from "./rows"
export { reuseTimelineRows } from "./row-reconciliation"
export function createTimelineProjection(input: {
messages: Accessor<Message[]>
sessionMessages: Accessor<SessionMessageInfo[]>
parts: (messageID: string) => Part[]
status: Accessor<SessionStatus>
showReasoningSummaries: Accessor<boolean>
inlineComments: Accessor<boolean>
}) {
const messageByID = createMemo(() => new Map(input.messages().map((message) => [message.id, message] as const)))
const assistantMessagesByParent = createMemo(() => {
const result = new Map<string, AssistantMessage[]>()
input.messages().forEach((message) => {
if (message.role !== "assistant") return
const messages = result.get(message.parentID)
if (messages) {
messages.push(message)
return
}
result.set(message.parentID, [message])
})
return result
})
const projection = createMemo(() =>
Timeline.constructSessionMessageRows(
input.sessionMessages(),
(messageID) => messageByID().get(messageID) as UserMessage | AssistantMessage | undefined,
input.parts,
input.showReasoningSummaries(),
input.status().type,
input.inlineComments(),
),
)
const activeMessageID = createMemo(() => projection().activeMessageID)
const rows = createMemo((previous: TimelineRow.TimelineRow[] | undefined) =>
reuseTimelineRows(previous, projection().rows),
)
const rowByKey = createMemo(() => new Map(rows().map((row) => [TimelineRow.key(row), row] as const)))
const messageRowIndex = createMemo(() => {
const result = new Map<string, number>()
rows().forEach((row, index) => {
if (!("userMessageID" in row) || result.has(row.userMessageID)) return
result.set(row.userMessageID, index)
})
return result
})
const messageLastRowIndex = createMemo(() => {
const result = new Map<string, number>()
rows().forEach((row, index) => {
if ("userMessageID" in row) result.set(row.userMessageID, index)
})
return result
})
const lastAssistantGroupKey = createMemo(() => {
const result = new Map<string, string>()
rows().forEach((row) => {
if (row._tag === "AssistantPart") result.set(row.userMessageID, row.group.key)
})
return result
})
return {
activeMessageID,
assistantMessagesByParent,
lastAssistantGroupKey,
messageByID,
messageRowIndex,
messageLastRowIndex,
rowByKey,
rows,
}
}