require('plugins')
require('keymaps')

map('n', '<f5>', vim.diagnostic.goto_prev)
map('n', '<f6>', vim.diagnostic.goto_next)

-- Only map the following keys after the language server attaches to the
-- current buffer
-- TODO: get key mappings to work.
local on_attach = function(client, bufnr)
    -- Enable completion triggered by <c-x><c-o>
    vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')

    local function maplsp(mode, shortcut, command)
        vim.keymap.set(mode, shortcut, command,
                       { noremap = true, silent = true, buffer=bufnr })
    end

    maplsp('n', 'gD', vim.lsp.buf.declaration)
    maplsp('n', 'gd', vim.lsp.buf.definition)
    maplsp('n', 'K', vim.lsp.buf.hover)
    maplsp('n', 'gi', vim.lsp.buf.implementation)
    maplsp('n', '<C-k>', vim.lsp.buf.signature_help)
    maplsp('n', '<space>wa', vim.lsp.buf.add_workspace_folder)
    maplsp('n', '<space>wr', vim.lsp.buf.remove_workspace_folder)
    maplsp('n', '<space>wl', function()
      print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
    end)
    maplsp('n', '<space>D', vim.lsp.buf.type_definition)
    maplsp('n', '<space>rn', vim.lsp.buf.rename)
    maplsp('n', '<space>ca', vim.lsp.buf.code_action)
    maplsp('n', 'gr', vim.lsp.buf.references)
    maplsp('n', '<space>f', vim.lsp.buf.formatting)
end

-- setup servers
require'lspconfig'.clangd.setup{
    cmd = {
        'clangd',
        '--compile-commands-dir=build',
        '--clang-tidy',                     -- needs >=clangd-9
        '--ranking-model=decision_forest'   -- needs >=clangd-12
    }
}