-- =======================================================================
-- Language Server
-- =======================================================================

local M = {}

M.packer = function(use)
    -- Language server engine
    use({
        "neovim/nvim-lspconfig",
        requires = { "hrsh7th/cmp-nvim-lsp" },
        config = function()
            local capabilities = require("cmp_nvim_lsp").update_capabilities(
                vim.lsp.protocol.make_client_capabilities()
            )
            require("lspconfig").rust_analyzer.setup({ capabilities = capabilities })
            require("lspconfig").tflint.setup({ capabilities = capabilities })
            require("lspconfig").terraformls.setup({ capabilities = capabilities })
            require("lspconfig").pyright.setup({
                on_attach = function()
                    -- set keymaps (requires 0.7.0)
                    -- vim.keymap.set("n", "", "", {buffer=0})
                end,
                capabilities = capabilities,
            })
        end,
    })

    -- Pretty highlights
    use("folke/lsp-colors.nvim")

    -- Linting
    use({
        "jose-elias-alvarez/null-ls.nvim",
        branch = "main",
        requires = {
            "nvim-lua/plenary.nvim",
            "neovim/nvim-lspconfig",
        },
        config = function()
            require("null-ls").setup({
                sources = {
                    require("null-ls").builtins.formatting.stylua,
                    require("null-ls").builtins.formatting.black,
                    require("null-ls").builtins.formatting.fish_indent,
                    require("null-ls").builtins.formatting.nixfmt,
                    require("null-ls").builtins.formatting.rustfmt,
                    require("null-ls").builtins.diagnostics.shellcheck,
                    require("null-ls").builtins.formatting.shfmt.with({
                        extra_args = { "-i", "4", "-ci" },
                    }),
                    require("null-ls").builtins.formatting.terraform_fmt,
                    -- require("null-ls").builtins.diagnostics.luacheck,
                    -- require("null-ls").builtins.diagnostics.markdownlint,
                    -- require("null-ls").builtins.diagnostics.pylint,
                },
                -- Format on save
                on_attach = function(client)
                    if client.resolved_capabilities.document_formatting then
                        vim.cmd([[
                        augroup LspFormatting
                            autocmd! * <buffer>
                            autocmd BufWritePre <buffer> lua vim.lsp.buf.formatting_seq_sync()
                        augroup END
                        ]])
                    end
                end,
            })
        end,
    })
end

return M