-- =============================================================================
-- editor.lua — 编辑器增强插件
-- =============================================================================

return {
  -- Comment.nvim: 注释快捷键 gcc / gc
  {
    "numToStr/Comment.nvim",
    event = { "BufReadPre", "BufNewFile" },
    opts = {},
  },

  -- nvim-surround: 环绕操作 ysiw" / cs"' / ds"
  {
    "kylechui/nvim-surround",
    event = { "BufReadPre", "BufNewFile" },
    version = "*",
    opts = {},
  },

  -- vim-illuminate: 高亮光标下相同单词
  {
    "RRethy/vim-illuminate",
    event = { "BufReadPre", "BufNewFile" },
    opts = {
      delay = 200,
      large_file_cutoff = 2000,
    },
    config = function(_, opts)
      require("illuminate").configure(opts)
    end,
  },

  -- toggleterm.nvim: 集成终端
  {
    "akinsho/toggleterm.nvim",
    version = "*",
    keys = {
      { "<C-`>", "<cmd>ToggleTerm<cr>", mode = { "n", "t" }, desc = "终端" },
      { "<leader>tg", "<cmd>ToggleTerm direction=float<cr>", desc = "浮动终端" },
      { "<leader>th", "<cmd>ToggleTerm direction=horizontal<cr>", desc = "水平终端" },
      { "<leader>tv", "<cmd>ToggleTerm direction=vertical<cr>", desc = "垂直终端" },
    },
    opts = {
      size = function(term)
        if term.direction == "horizontal" then
          return vim.o.lines * 0.3
        elseif term.direction == "vertical" then
          return vim.o.columns * 0.4
        end
      end,
      direction = "horizontal",
      float_opts = { border = "curved", winblend = 0 },
      shell = vim.o.shell,
    },
  },

  -- flash.nvim: 快速跳转
  {
    "folke/flash.nvim",
    event = "VeryLazy",
    opts = {},
  },

  -- indent-blankline: 缩进参考线
  {
    "lukas-reineke/indent-blankline.nvim",
    event = { "BufReadPost", "BufNewFile" },
    main = "ibl",
    opts = {
      indent = { char = "│" },
      scope = { enabled = true },
    },
  },

  -- nvim-ufo: 代码折叠
  {
    "kevinhwang91/nvim-ufo",
    dependencies = { "kevinhwang91/promise-async" },
    event = { "BufReadPost", "BufNewFile" },
    config = function()
      vim.o.foldmethod = "expr"
      vim.o.foldexpr = "v:lua.vim.treesitter.foldexpr()"
      vim.o.foldlevel = 99
      vim.o.foldlevelstart = 99

      require('ufo').setup({
        provider_selector = function(bufnr, filetype, buftype)
          return { "treesitter", "indent" }
        end,
      })

      vim.keymap.set('n', 'zM', require('ufo').closeAllFolds, { desc = "关闭所有折叠" })
      vim.keymap.set('n', 'zR', require('ufo').openAllFolds, { desc = "展开所有折叠" })
    end,
  },

  -- rainbow-delimiters: 彩虹括号
  {
    "HiPhish/rainbow-delimiters.nvim",
    dependencies = { "nvim-treesitter/nvim-treesitter" },
    config = function()
      local rainbow_delimiters = require("rainbow-delimiters")
      vim.g.rainbow_delimiters = {
        strategy = { [''] = rainbow_delimiters.strategy.global },
        query = { [''] = 'rainbow-delimiters' },
      }
    end,
  },
}