File size: 5,622 Bytes
eb1202c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | import type { AgentPart as MessageAgentPart, FilePart, Part, TextPart } from "@opencode-ai/sdk/v2"
import type { AgentPart, FileAttachmentPart, ImageAttachmentPart, Prompt } from "@/context/prompt"
import { createLegacyBlobReference } from "@/utils/draft-store"
type Inline =
| {
type: "file"
start: number
end: number
value: string
path: string
selection?: {
startLine: number
endLine: number
startChar: number
endChar: number
}
}
| {
type: "agent"
start: number
end: number
value: string
name: string
}
function selectionFromFileUrl(url: string): Extract<Inline, { type: "file" }>["selection"] {
const queryIndex = url.indexOf("?")
if (queryIndex === -1) return undefined
const params = new URLSearchParams(url.slice(queryIndex + 1))
const startLine = Number(params.get("start"))
const endLine = Number(params.get("end"))
if (!Number.isFinite(startLine) || !Number.isFinite(endLine)) return undefined
return {
startLine,
endLine,
startChar: 0,
endChar: 0,
}
}
function textPartValue(parts: Part[]) {
const candidates = parts
.filter((part): part is TextPart => part.type === "text")
.filter((part) => !part.synthetic && !part.ignored)
return candidates.reduce((best: TextPart | undefined, part) => {
if (!best) return part
if (part.text.length > best.text.length) return part
return best
}, undefined)
}
/**
* Extract prompt content from message parts for restoring into the prompt input.
* This is used by undo to restore the original user prompt.
*/
export function extractPromptFromParts(parts: Part[], opts?: { directory?: string; attachmentName?: string }): Prompt {
const textPart = textPartValue(parts)
const text = textPart?.text ?? ""
const directory = opts?.directory
const attachmentName = opts?.attachmentName ?? "attachment"
const toRelative = (path: string) => {
if (!directory) return path
const prefix = directory.endsWith("/") ? directory : directory + "/"
if (path.startsWith(prefix)) return path.slice(prefix.length)
if (path.startsWith(directory)) {
const next = path.slice(directory.length)
if (next.startsWith("/")) return next.slice(1)
return next
}
return path
}
const inline: Inline[] = []
const images: ImageAttachmentPart[] = []
for (const part of parts) {
if (part.type === "file") {
const filePart = part as FilePart
const sourceText = filePart.source?.text
if (sourceText) {
const value = sourceText.value
const start = sourceText.start
const end = sourceText.end
let path = value
if (value.startsWith("@")) path = value.slice(1)
if (!value.startsWith("@") && filePart.source && "path" in filePart.source) {
path = filePart.source.path
}
inline.push({
type: "file",
start,
end,
value,
path: toRelative(path),
selection: selectionFromFileUrl(filePart.url),
})
continue
}
if (filePart.url.startsWith("data:")) {
images.push({
type: "image",
id: filePart.id,
filename: filePart.filename ?? attachmentName,
mime: filePart.mime,
blob: createLegacyBlobReference(filePart.url),
})
}
}
if (part.type === "agent") {
const agentPart = part as MessageAgentPart
const source = agentPart.source
if (!source) continue
inline.push({
type: "agent",
start: source.start,
end: source.end,
value: source.value,
name: agentPart.name,
})
}
}
inline.sort((a, b) => {
if (a.start !== b.start) return a.start - b.start
return a.end - b.end
})
const result: Prompt = []
let position = 0
let cursor = 0
const pushText = (content: string) => {
if (!content) return
result.push({
type: "text",
content,
start: position,
end: position + content.length,
})
position += content.length
}
const pushFile = (item: Extract<Inline, { type: "file" }>) => {
const content = item.value
const attachment: FileAttachmentPart = {
type: "file",
path: item.path,
content,
start: position,
end: position + content.length,
selection: item.selection,
}
result.push(attachment)
position += content.length
}
const pushAgent = (item: Extract<Inline, { type: "agent" }>) => {
const content = item.value
const mention: AgentPart = {
type: "agent",
name: item.name,
content,
start: position,
end: position + content.length,
}
result.push(mention)
position += content.length
}
for (const item of inline) {
if (item.start < 0 || item.end < item.start) continue
const expected = item.value
if (!expected) continue
const mismatch = item.end > text.length || item.start < cursor || text.slice(item.start, item.end) !== expected
const start = mismatch ? text.indexOf(expected, cursor) : item.start
if (start === -1) continue
const end = mismatch ? start + expected.length : item.end
pushText(text.slice(cursor, start))
if (item.type === "file") pushFile(item)
if (item.type === "agent") pushAgent(item)
cursor = end
}
pushText(text.slice(cursor))
if (result.length === 0) {
result.push({ type: "text", content: "", start: 0, end: 0 })
}
if (images.length === 0) return result
return [...result, ...images]
}
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