import type {
  DirectAgentToolCapability,
  DirectAgentToolName,
} from "@/lib/ai/runtime/direct-agent-execution";

type DirectAgentProgressStage =
  | "planning"
  | "clarify"
  | "executing"
  | "completed"
  | "failed";

type DirectAgentProgressStep =
  | "lock_target"
  | "analyze"
  | "select_tool"
  | "execute"
  | "finalize";

export interface DirectAgentProgressPayload {
  stage: DirectAgentProgressStage;
  currentStep: DirectAgentProgressStep;
  title?: string;
  message?: string;
  toolName?: DirectAgentToolName;
  capability?: DirectAgentToolCapability;
}

function buildDirectAgentProgressPayload(params: DirectAgentProgressPayload) {
  return params;
}

export function buildDirectAgentImageContextProgress(params: {
  imageCount?: number;
  mode?: "generate" | "edit" | "video";
}) {
  const imageCount = Math.max(0, Math.floor(Number(params.imageCount || 0)));
  const hasMultipleImages = imageCount > 1;
  const hasImage = imageCount > 0;

  if (params.mode === "edit") {
    return buildDirectAgentProgressPayload({
      stage: "planning",
      currentStep: "lock_target",
      title: hasMultipleImages ? "正在理解多张待编辑图片" : "正在理解待编辑图片",
      message: hasImage
        ? "我会先识别主体、风格、构图和需要保留的内容，再确认这次要改变的部分。"
        : "我会先根据你的文字需求确认编辑目标，再整理成适合模型执行的方向。",
      toolName: "editImage",
      capability: "generic_edit",
    });
  }

  if (params.mode === "video") {
    return buildDirectAgentProgressPayload({
      stage: "planning",
      currentStep: "lock_target",
      title: hasImage ? "正在理解视频参考图" : "正在规划视频画面",
      message: hasImage
        ? "我会先提取参考图的主体、镜头、风格和运动约束，再整理成视频生成方向。"
        : "我会先根据你的描述整理镜头主体、运动节奏和画面风格。",
      toolName: "generateVideo",
      capability: "generate_video",
    });
  }

  return buildDirectAgentProgressPayload({
    stage: "planning",
    currentStep: "lock_target",
    title: hasMultipleImages
      ? "正在理解多张参考图片"
      : hasImage
        ? "正在理解参考图片"
        : "正在规划画面方向",
    message: hasImage
      ? "我会先识别图片主体、风格、构图和关键约束，再提炼可执行的创作方向。"
      : "我会先根据你的描述整理画面主体、风格和关键约束。",
    toolName: "generateImage",
    capability: "generate_image",
  });
}

export function buildDirectAgentAnalyzePlanningProgress() {
  return buildDirectAgentProgressPayload({
    stage: "planning",
    currentStep: "analyze",
    title: "正在描述目标图片",
    message: "我会先识别主体、风格、构图、光线和材质，再整理成可直接阅读的观察结论。",
    toolName: "analyzeImage",
    capability: "analyze",
  });
}

export function buildDirectAgentAnalyzeCompletedProgress() {
  return buildDirectAgentProgressPayload({
    stage: "completed",
    currentStep: "finalize",
    title: "图片分析完成",
    message: "我已经把图片要点整理成清晰结论，方便继续修图、生图或做风格延展。",
    toolName: "analyzeImage",
    capability: "analyze",
  });
}

export function buildDirectAgentAnalyzeFailedProgress(errorMessage: string) {
  return buildDirectAgentProgressPayload({
    stage: "failed",
    currentStep: "analyze",
    title: "图片分析失败",
    message: errorMessage,
    toolName: "analyzeImage",
    capability: "analyze",
  });
}

export function buildDirectAgentImageGenerateSelectProgress() {
  return buildDirectAgentProgressPayload({
    stage: "planning",
    currentStep: "select_tool",
    title: "正在优化生图提示词",
    message: "我会把你的需求转成更适合当前模型的提示词，并保留主体、风格、构图和画面约束。",
    toolName: "generateImage",
    capability: "generate_image",
  });
}

export function buildDirectAgentImageGenerateExecutingProgress() {
  return buildDirectAgentProgressPayload({
    stage: "executing",
    currentStep: "execute",
    title: "正在提交生图模型",
    message: "已将优化后的提示词与参考图一起提交生成，完成后会回写到对话和画布。",
    toolName: "generateImage",
    capability: "generate_image",
  });
}

export function buildDirectAgentImageGenerateCompletedProgress() {
  return buildDirectAgentProgressPayload({
    stage: "completed",
    currentStep: "finalize",
    title: "图片生成完成",
    message: "结果已整理并回写到当前对话和画布。",
    toolName: "generateImage",
    capability: "generate_image",
  });
}

export function buildDirectAgentImageGenerateFailedProgress(errorMessage: string) {
  return buildDirectAgentProgressPayload({
    stage: "failed",
    currentStep: "execute",
    title: "图片生成失败",
    message: errorMessage,
    toolName: "generateImage",
    capability: "generate_image",
  });
}

export function buildDirectAgentVideoGenerateSelectProgress() {
  return buildDirectAgentProgressPayload({
    stage: "planning",
    currentStep: "select_tool",
    title: "正在优化视频提示词",
    message: "我会把你的描述整理成镜头、主体、运动和风格更明确的视频生成提示词。",
    toolName: "generateVideo",
    capability: "generate_video",
  });
}

export function buildDirectAgentVideoGenerateExecutingProgress() {
  return buildDirectAgentProgressPayload({
    stage: "executing",
    currentStep: "execute",
    title: "正在提交视频生成",
    message: "已将优化后的镜头提示词与参考图提交生成，完成后会回写到对话和画布。",
    toolName: "generateVideo",
    capability: "generate_video",
  });
}

export function buildDirectAgentVideoGenerateCompletedProgress() {
  return buildDirectAgentProgressPayload({
    stage: "completed",
    currentStep: "finalize",
    title: "视频生成完成",
    message: "结果已整理并回写到当前对话和画布。",
    toolName: "generateVideo",
    capability: "generate_video",
  });
}

export function buildDirectAgentVideoGenerateFailedProgress(errorMessage: string) {
  return buildDirectAgentProgressPayload({
    stage: "failed",
    currentStep: "execute",
    title: "视频生成失败",
    message: errorMessage,
    toolName: "generateVideo",
    capability: "generate_video",
  });
}

export function buildDirectAgentImageEditSelectProgress(params: {
  toolName: DirectAgentToolName;
  capability: DirectAgentToolCapability;
  label: string;
}) {
  return buildDirectAgentProgressPayload({
    stage: "planning",
    currentStep: "select_tool",
    title: "正在优化修图提示词",
    message: `我会把你的编辑需求整理成更适合${params.label}执行的提示词，明确保留项和变化项。`,
    toolName: params.toolName,
    capability: params.capability,
  });
}

export function buildDirectAgentImageEditExecutingProgress(params: {
  toolName: DirectAgentToolName;
  capability: DirectAgentToolCapability;
  label: string;
}) {
  return buildDirectAgentProgressPayload({
    stage: "executing",
    currentStep: "execute",
    title: `正在提交${params.label}`,
    message: "已将优化后的编辑提示词和目标图提交生成，完成后会回写到当前对话和画布。",
    toolName: params.toolName,
    capability: params.capability,
  });
}

export function buildDirectAgentImageEditCompletedProgress(params: {
  toolName: DirectAgentToolName;
  capability: DirectAgentToolCapability;
  label: string;
}) {
  return buildDirectAgentProgressPayload({
    stage: "completed",
    currentStep: "finalize",
    title: `${params.label}完成`,
    message: "结果已整理并回写到当前对话和画布。",
    toolName: params.toolName,
    capability: params.capability,
  });
}

export function buildDirectAgentImageEditFailedProgress(params: {
  toolName: DirectAgentToolName;
  capability: DirectAgentToolCapability;
  label: string;
  errorMessage: string;
}) {
  return buildDirectAgentProgressPayload({
    stage: "failed",
    currentStep: "execute",
    title: `${params.label}失败`,
    message: params.errorMessage,
    toolName: params.toolName,
    capability: params.capability,
  });
}