| 1 | import { useEffect, useMemo, useState } from "react"; |
| 2 | import type { WireMCPInteraction } from "../lib/types"; |
| 3 | import { useI18n } from "../lib/i18n"; |
| 4 | import { structuredFieldIssue, type StructuredFieldValue } from "../lib/structuredFormSchema"; |
| 5 | import { PromptBadge, PromptShelf } from "./PromptShelf"; |
| 6 | import { |
| 7 | StructuredForm, |
| 8 | coerceStructuredValues, |
| 9 | initialStructuredValues, |
| 10 | parseStructuredSchema, |
| 11 | } from "./StructuredForm"; |
| 12 | import "./MCPInteractionCard.css"; |
| 13 | |
| 14 | function hostOfURL(raw: string | undefined): string { |
| 15 | if (!raw) return ""; |
| 16 | try { |
| 17 | return new URL(raw).host; |
| 18 | } catch { |
| 19 | return ""; |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | // MCPInteractionCard renders one server-initiated elicitation. Missing or |
| 24 | // unknown mode falls back to form, preserving pre-2025-11-25 behavior. |
| 25 | export function MCPInteractionCard({ |
| 26 | interaction, |
| 27 | instanceKey, |
| 28 | busy, |
| 29 | onAnswer, |
| 30 | onOpenLink, |
| 31 | }: { |
| 32 | interaction: WireMCPInteraction; |
| 33 | instanceKey: string; |
| 34 | busy: boolean; |
| 35 | onAnswer: (id: string, action: "accept" | "decline" | "cancel", content?: Record<string, unknown>) => void; |
| 36 | onOpenLink?: (url: string) => void; |
| 37 | }) { |
| 38 | const { t } = useI18n(); |
| 39 | const mode = interaction.mode === "url" ? "url" : "form"; |
| 40 | const schema = useMemo(() => parseStructuredSchema(interaction.requestedSchema), [interaction.requestedSchema]); |
| 41 | const [values, setValues] = useState<Record<string, StructuredFieldValue>>(() => initialStructuredValues(schema.fields)); |
| 42 | const [openedLink, setOpenedLink] = useState(false); |
| 43 | const [showErrors, setShowErrors] = useState(false); |
| 44 | const [focusInvalidNonce, setFocusInvalidNonce] = useState(0); |
| 45 | |
| 46 | useEffect(() => { |
| 47 | setValues(initialStructuredValues(schema.fields)); |
| 48 | setOpenedLink(false); |
| 49 | setShowErrors(false); |
| 50 | }, [instanceKey, schema.fields]); |
| 51 | |
| 52 | const firstIssue = schema.fields.find((field) => structuredFieldIssue(field, values[field.key])); |
| 53 | const formBlocked = schema.unsupported || firstIssue !== undefined; |
| 54 | const messageID = `mcp-interaction-${interaction.id}-message`; |
| 55 | const targetHost = hostOfURL(interaction.url); |
| 56 | |
| 57 | const submit = () => { |
| 58 | if (formBlocked) { |
| 59 | setShowErrors(true); |
| 60 | setFocusInvalidNonce((nonce) => nonce + 1); |
| 61 | return; |
| 62 | } |
| 63 | onAnswer(interaction.id, "accept", coerceStructuredValues(schema.fields, values).content); |
| 64 | }; |
| 65 | |
| 66 | const openLink = () => { |
| 67 | if (!interaction.url) return; |
| 68 | setOpenedLink(true); |
| 69 | onOpenLink?.(interaction.url); |
| 70 | }; |
| 71 | |
| 72 | const validationHint = schema.unsupported |
| 73 | ? t("mcp.interaction.unsupportedSchema") |
| 74 | : showErrors && firstIssue |
| 75 | ? firstIssue.required |
| 76 | ? t("mcp.interaction.required", { label: firstIssue.label }) |
| 77 | : t("mcp.interaction.invalidValue", { label: firstIssue.label }) |
| 78 | : t("mcp.interaction.reviewHint"); |
| 79 | |
| 80 | return ( |
| 81 | <PromptShelf |
| 82 | className="mcp-interaction-shelf" |
| 83 | titleId={`mcp-interaction-${interaction.id}`} |
| 84 | descriptionId={messageID} |
| 85 | title={t("mcp.interaction.title")} |
| 86 | badges={ |
| 87 | <> |
| 88 | <PromptBadge>{interaction.server}</PromptBadge> |
| 89 | <PromptBadge>{mode === "url" ? t("mcp.interaction.modeUrl") : t("mcp.interaction.modeForm")}</PromptBadge> |
| 90 | </> |
| 91 | } |
| 92 | decision |
| 93 | footer={ |
| 94 | mode === "url" ? ( |
| 95 | <div className="prompt-shelf-bar"> |
| 96 | <button |
| 97 | type="button" |
| 98 | className="btn btn--small prompt-shelf-bar__quiet" |
| 99 | onClick={() => onAnswer(interaction.id, "decline")} |
| 100 | disabled={busy} |
| 101 | > |
| 102 | {t("mcp.interaction.decline")} |
| 103 | </button> |
| 104 | <span className="prompt-shelf-bar-hint" aria-live="polite"> |
| 105 | {openedLink ? t("mcp.interaction.urlOpenedHint") : t("mcp.interaction.urlHint")} |
| 106 | </span> |
| 107 | <div className="prompt-shelf-bar-actions" role="group" aria-label={t("mcp.interaction.actions")}> |
| 108 | <button type="button" className="btn btn--small" onClick={() => onAnswer(interaction.id, "cancel")} disabled={busy}> |
| 109 | {t("mcp.interaction.cancel")} |
| 110 | </button> |
| 111 | <button type="button" className="btn btn--small" onClick={openLink} disabled={busy || !interaction.url}> |
| 112 | {t("mcp.interaction.openUrl", { host: targetHost || t("mcp.interaction.link") })} |
| 113 | </button> |
| 114 | <button type="button" className="btn btn--small btn--primary" onClick={() => onAnswer(interaction.id, "accept")} disabled={busy}> |
| 115 | {t("mcp.interaction.accept")} |
| 116 | </button> |
| 117 | </div> |
| 118 | </div> |
| 119 | ) : ( |
| 120 | <div className="prompt-shelf-bar"> |
| 121 | <button |
| 122 | type="button" |
| 123 | className="btn btn--small prompt-shelf-bar__quiet" |
| 124 | onClick={() => onAnswer(interaction.id, "decline")} |
| 125 | disabled={busy} |
| 126 | > |
| 127 | {t("mcp.interaction.decline")} |
| 128 | </button> |
| 129 | <span className="prompt-shelf-bar-hint" aria-live="polite">{validationHint}</span> |
| 130 | <div className="prompt-shelf-bar-actions" role="group" aria-label={t("mcp.interaction.actions")}> |
| 131 | <button type="button" className="btn btn--small" onClick={() => onAnswer(interaction.id, "cancel")} disabled={busy}> |
| 132 | {t("mcp.interaction.cancel")} |
| 133 | </button> |
| 134 | <button type="button" className="btn btn--small btn--primary" onClick={submit} disabled={busy || schema.unsupported}> |
| 135 | {t("mcp.interaction.submit")} |
| 136 | </button> |
| 137 | </div> |
| 138 | </div> |
| 139 | ) |
| 140 | } |
| 141 | > |
| 142 | <p id={messageID} className="mcp-interaction-message">{interaction.message}</p> |
| 143 | {mode === "url" ? ( |
| 144 | <div className="mcp-interaction-url"> |
| 145 | <span>{interaction.server}</span> |
| 146 | <span aria-hidden="true">→</span> |
| 147 | <strong>{targetHost || t("mcp.interaction.unknownHost")}</strong> |
| 148 | </div> |
| 149 | ) : schema.fields.length > 0 ? ( |
| 150 | <> |
| 151 | {schema.unsupported ? ( |
| 152 | <p className="mcp-interaction-noschema" role="alert">{t("mcp.interaction.unsupportedSchema")}</p> |
| 153 | ) : null} |
| 154 | <StructuredForm |
| 155 | fields={schema.fields} |
| 156 | values={values} |
| 157 | onChange={setValues} |
| 158 | disabled={busy} |
| 159 | showErrors={showErrors} |
| 160 | focusInvalidNonce={focusInvalidNonce} |
| 161 | /> |
| 162 | <p className="mcp-interaction-privacy">{t("mcp.interaction.formPrivacyHint")}</p> |
| 163 | </> |
| 164 | ) : schema.unsupported ? ( |
| 165 | <p className="mcp-interaction-noschema" role="alert">{t("mcp.interaction.unsupportedSchema")}</p> |
| 166 | ) : ( |
| 167 | <p className="mcp-interaction-noschema">{t("mcp.interaction.confirmOnly")}</p> |
| 168 | )} |
| 169 | </PromptShelf> |
| 170 | ); |
| 171 | } |
| 172 |