local tabsize = 2

vim.o.number = true
vim.o.relativenumber = true
vim.o.wrap = false
vim.o.winborder = "rounded"
vim.o.tabstop = tabsize
vim.o.softtabstop = tabsize
vim.o.shiftwidth = tabsize
vim.o.expandtab = false
vim.o.smartindent = true
vim.o.swapfile = false
vim.g.mapleader = " "

vim.keymap.set("n", "<leader>o", ":update<CR>:source<CR>")
vim.keymap.set("n", "<leader>lf", vim.lsp.buf.format)
vim.keymap.set("n", "<leader>ff", ":Telescope find_files<CR>")
vim.keymap.set("n", "<leader>fg", ":Telescope live_grep<CR>")
vim.keymap.set("n", "<leader>n", ":noh<CR>")

vim.pack.add({
	{ src = "https://github.com/vague-theme/vague.nvim" },
	{ src = "https://github.com/neovim/nvim-lspconfig" },
	{ src = "https://github.com/nvim-lua/plenary.nvim" },
	{ src = "nvim-telescope/telescope-fzf-native.nvim" },
	{ src = "https://github.com/nvim-telescope/telescope.nvim" },
	{ src = "https://github.com/hrsh7th/nvim-cmp" },
	{ src = "https://github.com/hrsh7th/cmp-nvim-lsp" },
	{ src = "https://github.com/windwp/nvim-autopairs" },
	{ src = "https://github.com/nvim-treesitter/nvim-treesitter" }
})

vim.lsp.config('lua_ls', {
	on_init = function(client)
		if client.workspace_folders then
			local path = client.workspace_folders[1].name
			if
					path ~= vim.fn.stdpath('config')
					and (vim.uv.fs_stat(path .. '/.luarc.json') or vim.uv.fs_stat(path .. '/.luarc.jsonc'))
			then
				return
			end
		end

		client.config.settings.Lua = vim.tbl_deep_extend('force', client.config.settings.Lua, {
			runtime = {
				-- Tell the language server which version of Lua you're using (most
				-- likely LuaJIT in the case of Neovim)
				version = 'LuaJIT',
				-- Tell the language server how to find Lua modules same way as Neovim
				-- (see `:h lua-module-load`)
				path = {
					'lua/?.lua',
					'lua/?/init.lua',
				},
			},
			workspace = {
				checkThirdParty = false,
				library = {
					vim.env.VIMRUNTIME,
				},
			},
		})
	end,
	settings = {
		Lua = {},
	},
})

local cmp = require 'cmp'

cmp.setup({
	snippet = {
		expand = function(args)
			vim.snippet.expand(args.body)
		end
	},
	preselect = cmp.PreselectMode.Item,
	mapping = cmp.mapping.preset.insert({
		['<C-b>'] = cmp.mapping.scroll_docs(-4),
		['<C-f>'] = cmp.mapping.scroll_docs(4),
		['<C-j>'] = cmp.mapping.select_next_item(),
		['<C-k>'] = cmp.mapping.select_prev_item(),
		['<C-Space>'] = cmp.mapping.complete(),
		['<C-e>'] = cmp.mapping.abort(),
		['<CR>'] = cmp.mapping.confirm({ select = true }),
	}),
	sources = cmp.config.sources({
		{ name = "nvim_lsp" }
	}, { name = 'buffer' })
})

local lsp_group = vim.api.nvim_create_augroup("MyLspKeymaps", { clear = true })

vim.api.nvim_create_autocmd('LspAttach', {
	group = lsp_group,
	callback = function(ev)
		local bufnr = ev.buf
		local opts = { silent = true, noremap = true, buffer = bufnr }

		vim.keymap.set("n", "gd", vim.lsp.buf.definition, opts)
		vim.keymap.set("n", "gD", vim.lsp.buf.declaration, opts)
		vim.keymap.set("n", "gi", vim.lsp.buf.implementation, opts)
		vim.keymap.set("n", "gr", vim.lsp.buf.references, opts)
		vim.keymap.set("n", "K", vim.lsp.buf.hover, opts)
		vim.keymap.set("n", "<leader>rn", vim.lsp.buf.rename, opts)
		vim.keymap.set("n", "<leader>ca", vim.lsp.buf.code_action, opts)
	end
})

require("vague").setup {
	transparent = true,
	italic = false,
}

local capabilities = require('cmp_nvim_lsp').default_capabilities()

vim.o.colorcolumn = "80"

vim.lsp.config('lua_ls', {
	capabilities = capabilities,
})
vim.lsp.config('clangd-tweak', {
	capabilities = capabilities,
})
vim.lsp.enable({ "lua_ls", "clangd-tweak" })
vim.cmd("colorscheme vague")

require 'nvim-autopairs'.setup {}
require 'nvim-treesitter'.install({ "c", "cpp", "rust", "lua", "javascript", "typescript" })