require('buildcmd')

local tbuiltin = require('telescope.builtin')
vim.g.mapleader = ' ' --space

local function project_files()
    local opts = {}
    local ok = pcall(tbuiltin.git_files, opts)
    if not ok then tbuiltin.find_files(opts) end
end

-- Mappings, mostly taken from nvim-lspconfig
local opts = { noremap=true, silent=true }
vim.keymap.set('n', '<leader>q', vim.diagnostic.open_float, opts)
vim.keymap.set('n', '<leader>e', '<cmd>Ex<CR>', opts)
vim.keymap.set('n', '<leader>ff', project_files, opts)
vim.keymap.set('n', '<leader>fb', '<cmd>Telescope buffers<cr>', opts)
vim.keymap.set('n', '<leader>bb', save_all_and_build, opts)
-- TODO: get fancy and read the commentstring and user
vim.keymap.set('i', '<A-t>', '// TODO(twig): ', opts)
vim.keymap.set('i', '<A-y>', '// NOTE(twig): ', opts)
--vim.keymap.set('i', '<C-.>', '->', opts)
vim.api.nvim_set_keymap('i', '<A-.>', '->', opts)
-- This is horrendous on windows, can't use nvim for almost a minute!
vim.keymap.set('n', 'K', '')
vim.keymap.set('n', '<leader>fs', '<cmd>Telescope grep_string<cr>', opts)
vim.keymap.set('n', '<leader>ss', '<cmd>Telescope spell_suggest<cr>', opts)
vim.keymap.set('n', '<leader>t', '<cmd>Telescope<cr>', opts)

local on_attach = function(client, bufnr)
    vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')

    -- Mappings
    local bufopts = { noremap=true, silent=true, buffer=bufnr }
    -- Replace these with telescope equivalent
    vim.keymap.set('n', '<leader>rb', vim.lsp.buf.declaration, bufopts)
    vim.keymap.set('n', '<leader>rd', vim.lsp.buf.definition, bufopts)
    vim.keymap.set('n', '<leader>rf', tbuiltin.lsp_references, bufopts)
    vim.keymap.set('n', '<leader>rs', tbuiltin.lsp_document_symbols, bufopts)
    vim.keymap.set('n', '<leader>rr', vim.lsp.buf.rename, bufopts)
end

local lsp_flags = {
    debounce_text_changes = 150, --wtf is this
}
local lspconfig = require('lspconfig');
lspconfig.zls.setup {
    on_attach = on_attach,
    flags = lsp_flags,
}
lspconfig.gopls.setup{
    on_attach = on_attach,
    flags = lsp_flags,
}
lspconfig.clangd.setup{
    on_attach = on_attach,
    flags = lsp_flags,
    handlers = {
        ["textDocument/publishDiagnostics"] = function(err, result, ctx, config)
        end
    }
}
-- honestly don't need this, telemetry is a big yikes.
lspconfig.sumneko_lua.setup{
    on_attach = on_attach,
    flags = lsp_flags,
    settings = {
        Lua = {
            runtime = {
                -- Tell the language server which version of Lua you're using (most likely LuaJIT in the case of Neovim)
                version = 'LuaJIT',
            },
            diagnostics = {
                -- Get the language server to recognize the `vim` global
                globals = {'vim'},
            },
            workspace = {
                -- Make the server aware of Neovim runtime files
                library = vim.api.nvim_get_runtime_file("", true),
            },
            -- Do not send telemetry data containing a randomized but unique identifier
            telemetry = {
                enable = false,
            },
        },
    },
}
lspconfig.rust_analyzer.setup{
    on_attach = on_attach,
}