import { useRef, useState } from 'react';

import { seedManifest } from '../../app/constants';
import type {
  AgentBackgroundSubmitMode,
  AgentChatInteractionMode,
  AgentChatPendingRuntimeRun,
  AgentChatReplyPhase,
  AgentConversationSessionRecord,
  AgentGoalDialogState,
  AgentGoalRecord,
  AgentRuntimeState,
  GameCreatorLlmConfigStatus,
  LocalConversationMessageRecord,
  TauriInvoke,
} from '../../app/types';
import { deriveAgentStatusCards } from '../project-summary/agentPresentation';

export function useDeveloperAgentState() {
  const launcherAgentChatAgents = deriveAgentStatusCards(seedManifest, null);
  const [agentChatProjectPath, setAgentChatProjectPath] = useState('');
  const [agentChatSelectedAgentId, setAgentChatSelectedAgentId] = useState(
    launcherAgentChatAgents[0]?.id ?? '',
  );
  const [agentChatMessages, setAgentChatMessages] = useState<
    LocalConversationMessageRecord[]
  >([]);
  const [agentChatSessions, setAgentChatSessions] = useState<
    AgentConversationSessionRecord[]
  >([]);
  const [agentChatSelectedSessionId, setAgentChatSelectedSessionId] = useState<
    string | null
  >(null);
  const [agentChatActiveSessionId, setAgentChatActiveSessionId] = useState<
    string | null
  >(null);
  const [agentChatLegacySessionMode, setAgentChatLegacySessionMode] =
    useState(false);
  const [agentChatConversationPath, setAgentChatConversationPath] =
    useState('');
  const [agentChatSessionStatus, setAgentChatSessionStatus] = useState('');
  const [agentChatInput, setAgentChatInput] = useState('');
  const [agentChatInteractionMode, setAgentChatInteractionMode] =
    useState<AgentChatInteractionMode>('run');
  const [agentChatRunSubmitMode, setAgentChatRunSubmitMode] =
    useState<AgentBackgroundSubmitMode>('steer');
  const [agentChatReplyPhase, setAgentChatReplyPhase] =
    useState<AgentChatReplyPhase>('idle');
  const [agentChatStatus, setAgentChatStatus] = useState('请选择项目和 Agent');
  const [agentChatBusy, setAgentChatBusy] = useState(false);
  const agentChatMessagesRef = useRef<HTMLDivElement | null>(null);
  const agentChatShouldFollowLatestRef = useRef(true);
  const [agentChatBackgroundBusy, setAgentChatBackgroundBusy] = useState(false);
  const [agentChatPendingRuntimeRun, setAgentChatPendingRuntimeRunState] =
    useState<AgentChatPendingRuntimeRun | null>(null);
  const [agentChatLlmConfigStatus, setAgentChatLlmConfigStatus] =
    useState<GameCreatorLlmConfigStatus | null>(null);
  const [agentChatLlmStatus, setAgentChatLlmStatus] =
    useState('尚未检查 LLM 配置');
  const [agentChatRuntime, setAgentChatRuntime] =
    useState<AgentRuntimeState | null>(null);
  const [agentChatActiveRuntime, setAgentChatActiveRuntime] =
    useState<AgentRuntimeState | null>(null);
  const [agentChatRuntimeError, setAgentChatRuntimeError] = useState('');
  const [agentChatGoal, setAgentChatGoal] = useState<AgentGoalRecord | null>(
    null,
  );
  const [agentChatGoalError, setAgentChatGoalError] = useState('');
  const [agentChatGoalDialog, setAgentChatGoalDialog] =
    useState<AgentGoalDialogState | null>(null);
  const [agentChatGoalDialogError, setAgentChatGoalDialogError] = useState('');
  const [agentChatResumeConfirmation, setAgentChatResumeConfirmation] =
    useState<{ projectPath: string; detail: string } | null>(null);
  const agentChatLoadVersionRef = useRef(0);
  const agentChatRuntimeResumeProjectPathRef = useRef<string | null>(null);
  const agentChatProjectPathRef = useRef(agentChatProjectPath);
  agentChatProjectPathRef.current = agentChatProjectPath;
  const agentChatSelectedAgentIdRef = useRef(agentChatSelectedAgentId);
  agentChatSelectedAgentIdRef.current = agentChatSelectedAgentId;
  const agentChatSelectedSessionIdRef = useRef(agentChatSelectedSessionId);
  agentChatSelectedSessionIdRef.current = agentChatSelectedSessionId;
  const agentChatActiveSessionIdRef = useRef(agentChatActiveSessionId);
  agentChatActiveSessionIdRef.current = agentChatActiveSessionId;
  const agentChatPendingRuntimeRunRef =
    useRef<AgentChatPendingRuntimeRun | null>(null);
  const agentChatRuntimeSyncingRunIdsRef = useRef(new Set<string>());
  const agentChatRuntimeSyncConversationRef = useRef<
    | ((
        invoke: TauriInvoke,
        pendingRun: AgentChatPendingRuntimeRun,
      ) => Promise<void>)
    | null
  >(null);

  return {
    launcherAgentChatAgents,
    agentChatProjectPath,
    setAgentChatProjectPath,
    agentChatSelectedAgentId,
    setAgentChatSelectedAgentId,
    agentChatMessages,
    setAgentChatMessages,
    agentChatSessions,
    setAgentChatSessions,
    agentChatSelectedSessionId,
    setAgentChatSelectedSessionId,
    agentChatActiveSessionId,
    setAgentChatActiveSessionId,
    agentChatLegacySessionMode,
    setAgentChatLegacySessionMode,
    agentChatConversationPath,
    setAgentChatConversationPath,
    agentChatSessionStatus,
    setAgentChatSessionStatus,
    agentChatInput,
    setAgentChatInput,
    agentChatInteractionMode,
    setAgentChatInteractionMode,
    agentChatRunSubmitMode,
    setAgentChatRunSubmitMode,
    agentChatReplyPhase,
    setAgentChatReplyPhase,
    agentChatStatus,
    setAgentChatStatus,
    agentChatBusy,
    setAgentChatBusy,
    agentChatMessagesRef,
    agentChatShouldFollowLatestRef,
    agentChatBackgroundBusy,
    setAgentChatBackgroundBusy,
    agentChatPendingRuntimeRun,
    setAgentChatPendingRuntimeRunState,
    agentChatLlmConfigStatus,
    setAgentChatLlmConfigStatus,
    agentChatLlmStatus,
    setAgentChatLlmStatus,
    agentChatRuntime,
    setAgentChatRuntime,
    agentChatActiveRuntime,
    setAgentChatActiveRuntime,
    agentChatRuntimeError,
    setAgentChatRuntimeError,
    agentChatGoal,
    setAgentChatGoal,
    agentChatGoalError,
    setAgentChatGoalError,
    agentChatGoalDialog,
    setAgentChatGoalDialog,
    agentChatGoalDialogError,
    setAgentChatGoalDialogError,
    agentChatResumeConfirmation,
    setAgentChatResumeConfirmation,
    agentChatLoadVersionRef,
    agentChatRuntimeResumeProjectPathRef,
    agentChatProjectPathRef,
    agentChatSelectedAgentIdRef,
    agentChatSelectedSessionIdRef,
    agentChatActiveSessionIdRef,
    agentChatPendingRuntimeRunRef,
    agentChatRuntimeSyncingRunIdsRef,
    agentChatRuntimeSyncConversationRef,
  };
}

export type DeveloperAgentState = ReturnType<typeof useDeveloperAgentState>;