// 需要在 index.ts 旁边创建一个 data.json，内容是 []，空数组，注意使用 utf-8 编码
import { definePlugin } from 'kivibot'
import todo from './todo.json'

export default definePlugin({
  name: 'todo',
  version: '1.0.0',
  setup(ctx) {
    const store = ctx.createVanilla({ todo: todo as Record<number, TodoItem[]> })

    store.subscribe(async () => {
      const { todo } = store.snapshot()
      const filePath = ctx.path.join(__dirname, './todo.json')
      ctx.fs.writeFileSync(filePath, JSON.stringify(todo))
    })

    ctx.handle('message', async (e) => {
      const text = ctx.getText(e)
      if (!text) return

      if (text.match(/^todo\s+help$/)) {
        return await e.reply(
          ctx
            .dedent(
              `
              〓 待办插件帮助 〓
              todo - 查看所有待办
              todo add <title> - 添加
              todo done <id> - 标记完成
              todo undo <id> - 还原标记
              todo delete <id> - 删除
              todo clear - 清空
          `,
            )
            .trim(),
        )
      }

      if (text.match(/^todo$/i)) {
        // biome-ignore lint/suspicious/noAssignInExpressions: <explanation>
        const userTodo = (store.mutate.todo[e.sender.user_id] ??= [])

        if (userTodo.length <= 12) {
          const todoListStr = userTodo
            .map((item) => `- [${item.status === 'done' ? 'x' : ' '}] [${item.id}] ${item.title}`)
            .join('\n')
          return await e.reply(`〓 待办事项 〓\n${todoListStr ? todoListStr : '[事情都干完啦～]'}`)
        }

        const msgs = await ctx.bot.makeForwardMsg(
          userTodo.slice(0, 99).map((item) => ({
            nickname: e.sender.nickname,
            user_id: e.sender.user_id,
            message: `- [${item.status === 'done' ? 'x' : ''}] [${item.id}] ${item.title}`,
          })),
        )

        await e.reply(msgs)
      }

      if (text.match(/^todo\s+clear$/)) {
        // biome-ignore lint/suspicious/noAssignInExpressions: <explanation>
        const userTodo = (store.mutate.todo[e.sender.user_id] ??= [])
        userTodo.length = 0
        return await e.reply('已清空待办事项')
      }

      if (text.match(/^todo\s+done/)) {
        // biome-ignore lint/suspicious/noAssignInExpressions: <explanation>
        const userTodo = (store.mutate.todo[e.sender.user_id] ??= [])
        const id = text.replace(/^todo\s+done/, () => '').trim()
        if (!id) return await e.reply('请提供待办事项 ID', true)
        const item = userTodo.find((item) => item.id.toLowerCase() === id.toLowerCase())
        if (!item) return await e.reply('未找到待办事项', true)
        item.status = 'done'
        item.updatedAt = Date.now()
        return await e.reply(`已标记待办事项 【${item.title}】 为完成`)
      }

      if (text.match(/^todo\s+undo/)) {
        // biome-ignore lint/suspicious/noAssignInExpressions: <explanation>
        const userTodo = (store.mutate.todo[e.sender.user_id] ??= [])
        const id = text.replace(/^todo\s+undo/, () => '').trim()
        if (!id) return await e.reply('请提供待办事项 ID', true)
        const item = userTodo.find((item) => item.id.toLowerCase() === id.toLowerCase())
        if (!item) return await e.reply('未找到待办事项', true)
        item.status = 'todo'
        item.updatedAt = Date.now()
        return await e.reply(`已标记待办事项 【${item.title}】 为未完成`)
      }

      if (text.match(/^todo\s+delete/)) {
        // biome-ignore lint/suspicious/noAssignInExpressions: <explanation>
        const userTodo = (store.mutate.todo[e.sender.user_id] ??= [])
        const id = text.replace(/^todo\s+delete/, () => '').trim()
        if (!id) return await e.reply('请提供待办事项 ID', true)
        const idx = userTodo.findIndex((item) => item.id.toLowerCase() === id.toLowerCase())
        if (idx === -1) return await e.reply('未找到待办事项', true)
        const item = userTodo.splice(idx, 1)
        return await e.reply(`已删除待办事项 【${item[0].title}】`)
      }

      if (text.match(/^todo\s+add/)) {
        // biome-ignore lint/suspicious/noAssignInExpressions: <explanation>
        const userTodo = (store.mutate.todo[e.sender.user_id] ??= [])
        const title = text.replace(/^todo\s+add/, () => '').trim()
        if (!title) return await e.reply('请提供待办事项的标题', true)

        userTodo.push({
          id: uuid(),
          title,
          status: 'todo',
          createdAt: Date.now(),
          updatedAt: Date.now(),
        })

        return await e.reply(`已添加待办事项：${title}`)
      }
    })
  },
})

function uuid() {
  return Math.random().toString(16).slice(2, 6).toUpperCase()
}

interface TodoItem {
  id: string
  title: string
  status: 'todo' | 'done'
  createdAt: number
  updatedAt: number
}