-- lazy.nvimのインストール
local lazypath = vim.fn.stdpath "data" .. "/lazy/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system {
    "git",
    "clone",
    "--filter=blob:none",
    "--single-branch",
    "https://github.com/folke/lazy.nvim.git",
    lazypath,
  }
end
vim.opt.runtimepath:prepend(lazypath)

-- lazy.nvimを使ってプラグインをインストール
require("lazy").setup({
  { "neovim/nvim-lspconfig" },
  { "williamboman/mason.nvim" },
  { "williamboman/mason-lspconfig.nvim" },
}, {})

-- LSPサーバアタッチ時の処理
vim.api.nvim_create_autocmd("LspAttach", {
  callback = function(ctx)
    local set = vim.keymap.set
    set("n", "gD", "<cmd>lua vim.lsp.buf.declaration()<CR>", { buffer = true })
    set("n", "gd", "<cmd>lua vim.lsp.buf.definition()<CR>", { buffer = true })
    set("n", "K", "<cmd>lua vim.lsp.buf.hover()<CR>", { buffer = true })
    set("n", "gi", "<cmd>lua vim.lsp.buf.implementation()<CR>", { buffer = true })
    set("n", "<C-k>", "<cmd>lua vim.lsp.buf.signature_help()<CR>", { buffer = true })
    set("n", "<space>wa", "<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>", { buffer = true })
    set("n", "<space>wr", "<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>", { buffer = true })
    set("n", "<space>wl", "<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>", { buffer = true })
    set("n", "<space>D", "<cmd>lua vim.lsp.buf.type_definition()<CR>", { buffer = true })
    set("n", "<space>rn", "<cmd>lua vim.lsp.buf.rename()<CR>", { buffer = true })
    set("n", "<space>ca", "<cmd>lua vim.lsp.buf.code_action()<CR>", { buffer = true })
    set("n", "gr", "<cmd>lua vim.lsp.buf.references()<CR>", { buffer = true })
    set("n", "<space>e", "<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<CR>", { buffer = true })
    set("n", "[d", "<cmd>lua vim.lsp.diagnostic.goto_prev()<CR>", { buffer = true })
    set("n", "]d", "<cmd>lua vim.lsp.diagnostic.goto_next()<CR>", { buffer = true })
    set("n", "<space>q", "<cmd>lua vim.lsp.diagnostic.set_loclist()<CR>", { buffer = true })
    set("n", "<space>f", "<cmd>lua vim.lsp.buf.formatting()<CR>", { buffer = true })
  end,
})

-- プラグインの設定
require("mason").setup()
require("mason-lspconfig").setup()
require("mason-lspconfig").setup_handlers {
  function(server_name)
    require("lspconfig")[server_name].setup {}
  end,
}

-- lazy.nvimのプラグインテーブル内に追加
require("lazy").setup({
  { "L3MON4D3/LuaSnip" },

  { "hrsh7th/nvim-cmp" },
  { "hrsh7th/cmp-nvim-lsp" },
  { "hrsh7th/cmp-buffer" },
  { "saadparwaiz1/cmp_luasnip" },
}, {})

-- lspのハンドラーに設定
capabilities = require("cmp_nvim_lsp").default_capabilities(),

-- lspの設定後に追加
vim.opt.completeopt = "menu,menuone,noselect"

local cmp = require"cmp"
cmp.setup({
  snippet = {
    expand = function(args)
      require("luasnip").lsp_expand(args.body)
    end,
  },
  mapping = cmp.mapping.preset.insert({
    ["<C-p>"] = cmp.mapping.select_prev_item(),
    ["<C-n>"] = cmp.mapping.select_next_item(),
    ["<C-d>"] = cmp.mapping.scroll_docs(-4),
    ["<C-f>"] = cmp.mapping.scroll_docs(4),
    ["<C-Space>"] = cmp.mapping.complete(),
    ["<C-e>"] = cmp.mapping.close(),
    ["<CR>"] = cmp.mapping.confirm({ select = true }),
  }),
  sources = cmp.config.sources({
    { name = "nvim_lsp" },
    { name = "luasnip" },
  }, {
    { name = "buffer" },
  })
})

{ "nvimtools/none-ls.nvim", dependencies = { "nvim-lua/plenary.nvim" }

local null_ls = require "null-ls"
null_ls.setup {
  sources = {
    null_ls.builtins.formatting.prettier.with {
      prefer_local = "node_modules/.bin",
    },
  },
}

null_ls.setup {
  sources = {
    null_ls.builtins.formatting.deno_fmt.with {
      condition = function(utils)
        return not (utils.has_file { ".prettierrc", ".prettierrc.js", "deno.json", "deno.jsonc" })
      end,
    },
    null_ls.builtins.formatting.prettier.with {
      condition = function(utils)
        return utils.has_file { ".prettierrc", ".prettierrc.js" }
      end,
      prefer_local = "node_modules/.bin",
    },
  },
  capabilities = common_config.capabilities,
  on_attach = common_config.on_attach,
}