-- What is this?
-- Homepage: https://github.com/ms-jpq/coq_nvim

-- Basically a completion plugin for neovim.
-- More specifically it just helps with autocorrecting variables, by using
--  text you have typed down or just by using libraries. LSP relies on this.

-- What is this?
-- LSP = Language Server Protocol => A protocol that provides code-completion,
--  syntax highlighting, marking of errors and more.

-- Homepages:
-- mason = https://github.com/mason-org/mason.nvim
-- mason-lspconfig = https://github.com/mason-org/mason-lspconfig.nvim
-- nvim-lspconfig = https://github.com/neovim/nvim-lspconfig

-- Recommended MasonInstall list (mostly formatters):
-- CMD: MasonInstall stylua prettier shfmt shellcheck

-- Homepage: https://github.com/windwp/nvim-ts-autotag
-- What is it?
-- Helps with automatically adding a ending tag
-- NOTE: Test it out using HTML or JSON. (E.g <div>something</div>)

return {
	{
		"neovim/nvim-lspconfig",
		lazy = false,
		dependencies = {
			{ "ms-jpq/coq_nvim", branch = "coq" },
			{ "ms-jpq/coq.artifacts", branch = "artifacts" },
			{ "ms-jpq/coq.thirdparty", branch = "3p" },
		},

		init = function()
			local remap = vim.api.nvim_set_keymap
			local npairs = require("nvim-autopairs")

			-- Prevents going to newline after an autocomplete.
			npairs.setup({ map_bs = false })

			vim.g.coq_settings = {
				auto_start = "shut-up",
				keymap = {
					recommended = false,
				},
				completion = {
					skip_after = { "\t", "{" },
				},
			}

			require("coq_3p")({
				{ src = "nvimlua", short_name = "nLUA" },
				{ src = "bc", short_name = "MATH", precision = 6 },
				{ src = "builtin/css" },
				{ src = "builtin/js" },
				{ src = "builtin/c" },
				{ src = "builtin/html" },
				{ src = "builtin/xml" },
				{ src = "repl", sh = "bash", unsafe = { "rm", "poweroff", "reboot", "mv" } },
			})

			remap("i", "<esc>", [[pumvisible() ? "<c-e><esc>" : "<esc>"]], { expr = true, noremap = true })
			remap("i", "<c-c>", [[pumvisible() ? "<c-e><c-c>" : "<c-c>"]], { expr = true, noremap = true })
			remap("i", "<tab>", [[pumvisible() ? "<c-n>" : "<tab>"]], { expr = true, noremap = true })
			remap("i", "<s-tab>", [[pumvisible() ? "<c-p>" : "<bs>"]], { expr = true, noremap = true })

			-- Prevents completion for everytime you press Enter
			remap(
				"i",
				"<CR>",
				[[pumvisible() ? (complete_info(['selected']).selected == -1 ? '<c-e><cr>' : '<c-y>') : '<cr>']],
				{ expr = true, noremap = false }
			)
		end,

		config = function()
			local config = require("lspconfig")
			local coq = require("coq")

			config.lua_ls.setup(coq.lsp_ensure_capabilities({
				settings = {
					Lua = {
						format = {
							enable = false,
						},
						diagnostics = {
							globals = { "vim" },
						},
					},
				},
			}))

			config.pylsp.setup(coq.lsp_ensure_capabilities({}))

			config.bashls.setup(coq.lsp_ensure_capabilities({}))

			config.ts_ls.setup(coq.lsp_ensure_capabilities({
				init_options = { preferences = { disableSuggestions = false } },
			}))

			config.eslint.setup(coq.lsp_ensure_capabilities({
				settings = { autoFixOnSave = true },
			}))

			config.html.setup(coq.lsp_ensure_capabilities({}))

			config.cssls.setup(coq.lsp_ensure_capabilities({
				settings = {
					css = {
						lint = {
							unknownAtRules = "ignore",
						},
					},
					scss = {
						lint = {
							unknownAtRules = "ignore",
						},
					},
				},
			}))

			config.tailwindcss.setup(coq.lsp_ensure_capabilities({}))

			config.clangd.setup(coq.lsp_ensure_capabilities({
				cmd = {
					"clangd",
					"--background-index",
					"--clang-tidy",
					"--log=verbose",
					"--query-driver=/usr/bin/c++",
					"--suggest-missing-includes",
					"--all-scopes-completion",
					"--completion-style=detailed",
				},
				init_options = {
					fallback_flags = { "-std=c++17" },
				},
			}))
		end,
	},

	{
		"mason-org/mason.nvim",
		dependencies = {
			"mason-org/mason-lspconfig.nvim",
		},
		opts = function()
			require("mason").setup()
			require("mason-lspconfig").setup({
				ensure_installed = {
					-- Language Servers
					"lua_ls",
					"clangd",
					"bashls",
					"ts_ls",
					"eslint",
					"cssls",
					"html",
					"tailwindcss",
					"pylsp",
				},
			})
		end,
	},
}