-- require('nvim-autopairs').setup()
-- 
-- local pairs_map = {
--     ["'"] = "'",
--     ['"'] = '"',
--     ['('] = ')',
--     ['['] = ']',
--     ['{'] = '}',
--     ['`'] = '`',
--     ['```'] = '```',
-- }
-- local disable_filetype = { "TelescopePrompt" }
-- local break_line_filetype = nil -- mean all file type
-- local html_break_line_filetype = {'html' , 'vue' , 'typescriptreact' , 'svelte' , 'javascriptreact'}
-- local ignored_next_char = "%w"
-- 
-- local remap = vim.api.nvim_set_keymap
-- local npairs = require('nvim-autopairs')
-- 
-- -- skip it, if you use another global object
-- _G.MUtils= {}
-- 
-- vim.g.completion_confirm_key = ""
-- MUtils.completion_confirm=function()
--   if vim.fn.pumvisible() ~= 0  then
--     if vim.fn.complete_info()["selected"] ~= -1 then
--       vim.fn["compe#confirm"]()
--       return npairs.esc("<c-y>")
--     else
--       vim.defer_fn(function()
--         vim.fn["compe#confirm"]("<cr>")
--       end, 20)
--       return npairs.esc("<c-n>")
--     end
--   else
--     return npairs.check_break_line_char()
--   end
-- end
--
--
-- remap('i' , '<CR>','v:lua.MUtils.completion_confirm()', {expr = true , noremap = true})
-- TODO switch to lua plugin when possible
-- vim.cmd([[
-- let g:lexima_no_default_rules = v:true
-- call lexima#set_default_rules()
-- inoremap <silent><expr> <C-Space> compe#complete()
-- inoremap <silent><expr> <CR>      compe#confirm(lexima#expand('<LT>CR>', 'i'))
-- inoremap <silent><expr> <C-e>     compe#close('<C-e>')
-- inoremap <silent><expr> <C-f>     compe#scroll({ 'delta': +4 })
-- inoremap <silent><expr> <C-d>     compe#scroll({ 'delta': -4 })
--     ]])
require('nvim-autopairs').setup()
local npairs = require('nvim-autopairs')

local function imap(lhs, rhs, opts)
    local options = {noremap = false}
    if opts then options = vim.tbl_extend('force', options, opts) end
    vim.api.nvim_set_keymap('i', lhs, rhs, options)
end

_G.MUtils = {}

MUtils.completion_confirm = function()
    if vim.fn.pumvisible() ~= 0 then
        if vim.fn.complete_info()["selected"] ~= -1 then
            vim.fn["compe#confirm"]()
            return npairs.esc("")
        else
            vim.fn.nvim_select_popupmenu_item(0, false, false, {})
            vim.fn["compe#confirm"]()
            return npairs.esc("<c-n>")
        end
    else
        return npairs.check_break_line_char()
    end
end

MUtils.tab=function()
    if vim.fn.pumvisible() ~= 0  then
        return npairs.esc("<C-n>")
    else
        if vim.fn["vsnip#available"](1) ~= 0 then
            vim.fn.feedkeys(string.format('%c%c%c(vsnip-expand-or-jump)', 0x80, 253, 83))
            return npairs.esc("")
        else
            return npairs.esc("<Tab>")
        end
    end
end

MUtils.s_tab=function()
    if vim.fn.pumvisible() ~= 0  then
        return npairs.esc("<C-p>")
    else
        if vim.fn["vsnip#jumpable"](-1) ~= 0 then
            vim.fn.feedkeys(string.format('%c%c%c(vsnip-jump-prev)', 0x80, 253, 83))
            return npairs.esc("")
        else
            return npairs.esc("<C-h>")
        end
    end
end

-- Autocompletion and snippets
imap("<CR>", "v:lua.MUtils.completion_confirm()", {expr = true, noremap = true})
imap("<Tab>", "v:lua.MUtils.tab()", {expr = true, noremap = true})
imap("<S-Tab>", "v:lua.MUtils.s_tab()", {expr = true, noremap = true})