/**
 * Agent-scope domain service contracts. These mirror the signatures of the
 * engine's domain Services (prompt / skill / loop / permissionMode / command /
 * contextMemory / tokenCounting / shellCommand / profile / usage / plan /
 * task) that the agent facade calls directly; payload and result schemas are
 * shared in `agent/schemas.ts` (they mirror the same wire shapes).
 */

import { z } from 'zod';

import { maybe, noResult } from '../helpers.js';
import type { ServiceContract } from '../types.js';
import {
  activateSkillPayloadSchema,
  agentCommandInfoSchema,
  agentTaskInfoSchema,
  permissionModeSchema,
  planDataSchema,
  promptLaunchResultSchema,
  promptPayloadSchema,
  promptWithSkillsPayloadSchema,
  promptWithSkillsResultSchema,
  runShellCommandPayloadSchema,
  runtimeBindingSchema,
  setModelResultSchema,
  shellCommandResultSchema,
  steerPayloadSchema,
  usageStatusSchema,
} from './schemas.js';

export const agentPromptContract = {
  submit: {
    input: z.tuple([promptPayloadSchema]),
    output: maybe(promptLaunchResultSchema),
  },
  submitSteer: {
    input: z.tuple([steerPayloadSchema]),
    output: maybe(promptLaunchResultSchema),
  },
} satisfies ServiceContract;

export const agentSkillContract = {
  activate: { input: z.tuple([activateSkillPayloadSchema]), output: promptLaunchResultSchema },
  promptWithSkills: {
    input: z.tuple([promptWithSkillsPayloadSchema]),
    output: promptWithSkillsResultSchema,
  },
} satisfies ServiceContract;

export const agentLoopContract = {
  cancelFromUser: { input: z.tuple([z.number().optional()]), output: noResult },
} satisfies ServiceContract;

export const agentPermissionModeContract = {
  setModeAndBroadcast: { input: z.tuple([permissionModeSchema]), output: noResult },
} satisfies ServiceContract;

export const agentCommandContract = {
  list: { input: z.tuple([]), output: z.array(agentCommandInfoSchema) },
  run: { input: z.tuple([z.string(), z.string().optional()]), output: noResult },
} satisfies ServiceContract;

export const agentRuntimeBindingContract = {
  get: { input: z.tuple([]), output: runtimeBindingSchema },
  set: { input: z.tuple([runtimeBindingSchema]), output: runtimeBindingSchema },
  switch: { input: z.tuple([z.string()]), output: runtimeBindingSchema },
} satisfies ServiceContract;

/** `history` items are full `ContextMessage`s, mirrored as `unknown`. */
export const agentContextMemoryContract = {
  get: { input: z.tuple([]), output: z.array(z.unknown()) },
} satisfies ServiceContract;

export const agentTokenCountingContract = {
  statusSize: { input: z.tuple([]), output: z.number() },
} satisfies ServiceContract;

export const agentShellCommandContract = {
  run: {
    input: z.tuple([runShellCommandPayloadSchema]),
    output: shellCommandResultSchema,
  },
  cancel: { input: z.tuple([z.string()]), output: noResult },
} satisfies ServiceContract;

export const agentProfileContract = {
  getModel: { input: z.tuple([]), output: z.string() },
  setModel: { input: z.tuple([z.string()]), output: setModelResultSchema },
  setThinking: { input: z.tuple([z.string()]), output: noResult },
  getEffectiveThinkingLevel: { input: z.tuple([]), output: z.string() },
} satisfies ServiceContract;

export const agentUsageContract = {
  status: { input: z.tuple([]), output: usageStatusSchema },
} satisfies ServiceContract;

export const agentPlanContract = {
  status: { input: z.tuple([]), output: planDataSchema },
  enter: { input: z.tuple([]), output: noResult },
  clear: { input: z.tuple([]), output: noResult },
  cancel: { input: z.tuple([z.string().optional()]), output: noResult },
} satisfies ServiceContract;

/** `McpServerEntry` from the engine's `mcpCore/connection-manager`. */
export const mcpServerEntrySchema = z.object({
  name: z.string(),
  transport: z.enum(['stdio', 'http', 'sse']),
  status: z.enum(['pending', 'connected', 'failed', 'disabled', 'needs-auth', 'removed']),
  toolCount: z.number(),
  error: z.string().optional(),
});

export const agentMcpContract = {
  list: { input: z.tuple([]), output: z.array(mcpServerEntrySchema) },
} satisfies ServiceContract;

/** `FullCompactionInput` from the engine's `agent/fullCompaction`. */
export const fullCompactionInputSchema = z.object({
  source: z.enum(['manual', 'auto']),
  instruction: z.string().optional(),
});

export const agentFullCompactionContract = {
  begin: { input: z.tuple([fullCompactionInputSchema]), output: z.boolean() },
} satisfies ServiceContract;

export const agentTaskContract = {
  list: {
    input: z.tuple([z.boolean().optional(), z.number().optional()]),
    output: z.array(agentTaskInfoSchema),
  },
  stopByUser: { input: z.tuple([z.string()]), output: maybe(agentTaskInfoSchema) },
  stop: {
    input: z.tuple([z.string(), z.string().optional()]),
    output: maybe(agentTaskInfoSchema),
  },
  readOutput: {
    input: z.tuple([z.string(), z.number().optional()]),
    output: z.string(),
  },
} satisfies ServiceContract;