// src/config/schema/oh-my-opencode-config.ts
export const OhMyOpenCodeConfig = z.object({
  // === 禁用开关 (Set 并集) ===
  disabled_agents: z.array(z.string()).optional(),
  disabled_tools: z.array(z.string()).optional(),
  disabled_mcps: z.array(z.string()).optional(),
  disabled_hooks: z.array(z.string()).optional(),
  disabled_skills: z.array(z.string()).optional(),
  disabled_commands: z.array(z.string()).optional(),

  // === MCP 环境白名单 ===
  mcp_env_allowlist: z.array(z.string()).optional(),

  // === 功能开关 ===
  hashline_edit: z.boolean().optional(),
  model_fallback: z.boolean().optional(),
  runtime_fallback: z.boolean().optional(),

  // === Agent 配置 (覆盖内置) ===
  agents: z.record(z.string(), AgentOverride).optional(),

  // === 分类配置 ===
  categories: z.record(z.string(), CategoryConfig).optional(),

  // === Claude Code 兼容性 ===
  claude_code: ClaudeCodeCompat.optional(),

  // === Sisyphus 协调者 ===
  sisyphus: SisyphusConfig.optional(),

  // === 后台任务 ===
  background_task: BackgroundTaskConfig.optional(),

  // === 通知 ===
  notification: NotificationConfig.optional(),

  // === 模型能力 ===
  model_capabilities: ModelCapabilities.optional(),

  // === Tmux 集成 ===
  tmux: TmuxConfig.optional(),

  // === 实验特性 ===
  experimental: ExperimentalConfig.optional(),

  // === 自动更新 ===
  auto_update: AutoUpdateConfig.optional(),

  // === Web 搜索 ===
  websearch: WebSearchConfig.optional(),

  // === 迁移追踪 ===
  _migrations: z.array(z.string()).optional(),
})

// src/plugin-config.ts
export function loadPluginConfig(ctx: PluginContext): Config {
  const configs: Partial<Config>[] = []

  // 1. 加载项目级配置
  const projectPath = path.join(ctx.directory, '.opencode', 'oh-my-opencode.jsonc')
  if (await exists(projectPath)) {
    const projectConfig = await loadJsonc(projectPath)
    configs.push(projectConfig)
  }

  // 2. 加载用户级配置
  const userPath = path.join(ctx.homeDir, '.config', 'opencode', 'oh-my-opencode.jsonc')
  if (await exists(userPath)) {
    const userConfig = await loadJsonc(userPath)
    configs.push(userConfig)
  }

  // 3. Zod 验证 + Deep Merge
  const merged = deepMerge(configs, {
    // agents/categories 使用 deep merge
    // disabled_* 使用 Set 并集
    // 其他直接覆盖
  })

  // 4. Zod 验证（partial 降级）
  const result = OhMyOpenCodeConfig.safeParse(merged)
  if (!result.success) {
    // 尝试部分加载
    const partial = OhMyOpenCodeConfig.strict().safeParse(merged)
    if (partial.success) {
      return applyDefaults(partial.data)
    }
    throw new ConfigValidationError(result.error)
  }

  // 5. 自动迁移
  return runMigrations(result.data)
}

// Deep merge 实现 (原型污染安全)
function deepMerge(targets: Partial<Config>[]): Partial<Config> {
  const keys = new Set<string>()
  for (const t of targets) {
    for (const k of Object.keys(t)) keys.add(k)
  }

  const result: Record<string, unknown> = {}
  for (const key of keys) {
    const values = targets.map(t => t[key as keyof Config]).filter(Boolean)

    if (key.startsWith('disabled_')) {
      // Set 并集
      result[key] = [...new Set(values.flat())]
    } else if (isObject(values[0])) {
      // 深度合并对象
      result[key] = deepMerge(values as Partial<Config>[])
    } else {
      // 最后覆盖
      result[key] = values[values.length - 1]
    }
  }

  return result as Partial<Config>
}