import { z } from "zod"; export const DEFAULT_TERMINAL_ID = "default"; const terminalColsSchema = z.number().int().min(20).max(400);const terminalRowsSchema = z.number().int().min(5).max(200);const terminalIdSchema = z.string().trim().min(1).max(128);const terminalEnvKeySchema = z.string().regex(/^[A-Za-z_][A-Za-z0-9_]*$/).max(128);const terminalEnvValueSchema = z.string().max(8_192);const terminalEnvSchema = z  .record(terminalEnvKeySchema, terminalEnvValueSchema)  .refine((env) => Object.keys(env).length <= 128, "Too many terminal env vars"); export const terminalThreadInputSchema = z.object({  threadId: z.string().trim().min(1),}); export const terminalSessionInputSchema = terminalThreadInputSchema.extend({  terminalId: terminalIdSchema.default(DEFAULT_TERMINAL_ID),}); export const terminalOpenInputSchema = terminalSessionInputSchema.extend({  cwd: z.string().trim().min(1),  cols: terminalColsSchema.optional(),  rows: terminalRowsSchema.optional(),  env: terminalEnvSchema.optional(),}); export const terminalWriteInputSchema = terminalSessionInputSchema.extend({  data: z.string().min(1).max(65_536),}); export const terminalResizeInputSchema = terminalSessionInputSchema.extend({  cols: terminalColsSchema,  rows: terminalRowsSchema,}); export const terminalClearInputSchema = terminalSessionInputSchema; export const terminalCloseInputSchema = terminalThreadInputSchema.extend({  terminalId: terminalIdSchema.optional(),  deleteHistory: z.boolean().optional(),}); export const terminalSessionStatusSchema = z.enum(["starting", "running", "exited", "error"]); export const terminalSessionSnapshotSchema = z.object({  threadId: z.string().min(1),  terminalId: z.string().min(1),  cwd: z.string().min(1),  status: terminalSessionStatusSchema,  pid: z.number().int().positive().nullable(),  history: z.string(),  exitCode: z.number().int().nullable(),  exitSignal: z.number().int().nullable(),  updatedAt: z.string().datetime(),}); const terminalEventBaseSchema = z.object({  threadId: z.string().min(1),  terminalId: z.string().min(1),  createdAt: z.string().datetime(),}); export const terminalStartedEventSchema = terminalEventBaseSchema.extend({  type: z.literal("started"),  snapshot: terminalSessionSnapshotSchema,}); export const terminalOutputEventSchema = terminalEventBaseSchema.extend({  type: z.literal("output"),  data: z.string(),}); export const terminalExitedEventSchema = terminalEventBaseSchema.extend({  type: z.literal("exited"),  exitCode: z.number().int().nullable(),  exitSignal: z.number().int().nullable(),}); export const terminalErrorEventSchema = terminalEventBaseSchema.extend({  type: z.literal("error"),  message: z.string().min(1),}); export const terminalClearedEventSchema = terminalEventBaseSchema.extend({  type: z.literal("cleared"),}); export const terminalRestartedEventSchema = terminalEventBaseSchema.extend({  type: z.literal("restarted"),  snapshot: terminalSessionSnapshotSchema,}); export const terminalActivityEventSchema = terminalEventBaseSchema.extend({  type: z.literal("activity"),  hasRunningSubprocess: z.boolean(),}); export const terminalEventSchema = z.discriminatedUnion("type", [  terminalStartedEventSchema,  terminalOutputEventSchema,  terminalExitedEventSchema,  terminalErrorEventSchema,  terminalClearedEventSchema,  terminalRestartedEventSchema,  terminalActivityEventSchema,]); export type TerminalThreadInput = z.input<typeof terminalThreadInputSchema>;export type TerminalSessionInput = z.input<typeof terminalSessionInputSchema>;export type TerminalOpenInput = z.input<typeof terminalOpenInputSchema>;export type TerminalWriteInput = z.input<typeof terminalWriteInputSchema>;export type TerminalResizeInput = z.input<typeof terminalResizeInputSchema>;export type TerminalClearInput = z.input<typeof terminalClearInputSchema>;export type TerminalCloseInput = z.input<typeof terminalCloseInputSchema>;export type TerminalSessionStatus = z.infer<typeof terminalSessionStatusSchema>;export type TerminalSessionSnapshot = z.infer<typeof terminalSessionSnapshotSchema>;export type TerminalEvent = z.infer<typeof terminalEventSchema>;