-- English comments only.
-- LSP capabilities for completion
local capabilities = require("cmp_nvim_lsp").default_capabilities()

-- Shared on_attach (LSP keymaps)
local on_attach = function(_, bufnr)
    local opts = {
        buffer = bufnr,
        silent = true
    }

    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)

    vim.keymap.set("n", "<leader>ds", vim.lsp.buf.document_symbol, opts)
    vim.keymap.set("n", "<leader>ws", vim.lsp.buf.workspace_symbol, opts)

    vim.keymap.set("n", "[d", vim.diagnostic.goto_prev, opts)
    vim.keymap.set("n", "]d", vim.diagnostic.goto_next, opts)
    vim.keymap.set("n", "<leader>e", vim.diagnostic.open_float, opts)
    vim.keymap.set("n", "<leader>dl", vim.diagnostic.setloclist, opts)

    vim.keymap.set("n", "<leader>f", function()
        vim.lsp.buf.format({
            async = true
        })
    end, opts)
end

-- Better diagnostics UI defaults
vim.diagnostic.config({
    virtual_text = true,
    signs = true,
    underline = true,
    update_in_insert = false,
    severity_sort = true,
    float = {
        border = "rounded"
    }
})

-- Neovim 0.11+ API: configure + enable
-- See :help lspconfig-nvim-0.11
vim.lsp.config("rust_analyzer", {
    capabilities = capabilities,
    on_attach = on_attach,
    settings = {
        ["rust-analyzer"] = {
            checkOnSave = true,
            check = {
                command = "clippy"
            },
            cargo = {
                allFeatures = true
            }
        }

    }
})

vim.lsp.enable({"rust_analyzer"})