--
-- ███╗   ██╗███████╗ ██████╗ ██╗   ██╗██╗███╗   ███╗
-- ████╗  ██║██╔════╝██╔═══██╗██║   ██║██║████╗ ████║
-- ██╔██╗ ██║█████╗  ██║   ██║██║   ██║██║██╔████╔██║
-- ██║╚██╗██║██╔══╝  ██║   ██║╚██╗ ██╔╝██║██║╚██╔╝██║
-- ██║ ╚████║███████╗╚██████╔╝ ╚████╔╝ ██║██║ ╚═╝ ██║
-- ╚═╝  ╚═══╝╚══════╝ ╚═════╝   ╚═══╝  ╚═╝╚═╝     ╚═╝
--
-- File: plugins/configs/cmp.lua
-- Description: cmp configuration
-- Author: Kien Nguyen-Tuan <kiennt2609@gmail.com>
local cmp = require "cmp"

require("nvim-autopairs").setup {
    check_ts = true,
    ts_config = {
        lua = { "string" }, -- it will not add a pair on that treesitter node
        javascript = { "template_string" },
        java = false, -- Don't check treesitter on java
    },

    -- Don't add pairs if it already has a close pair in the same line
    enable_check_bracket_line = false,

    -- Don't add pairs if the next char is alphanumeric
    ignored_next_char = "[%w%.]", -- will ignore alphanumeric and `.` symbol
    fast_wrap = {},
    disable_filetype = { "TelescopePrompt", "vim" },
}

-- setup cmp for autopairs
local cmp_autopairs = require "nvim-autopairs.completion.cmp"
require("cmp").event:on("confirm_done", cmp_autopairs.on_confirm_done())

local function border(hl_name)
    return {
        { "╭", hl_name },
        { "─", hl_name },
        { "╮", hl_name },
        { "│", hl_name },
        { "╯", hl_name },
        { "─", hl_name },
        { "╰", hl_name },
        { "│", hl_name },
    }
end

local options = {
    completion = {
        completeopt = "menu,menuone",
    },

    window = {
        completion = {
            winhighlight = "Normal:CmpPmenu,CursorLine:CmpSel,Search:PmenuSel",
            scrollbar = false,
        },
        documentation = {
            border = border "CmpDocBorder",
            winhighlight = "Normal:CmpDoc",
        },
    },

    snippet = {
        expand = function(args) require("luasnip").lsp_expand(args.body) end,
    },

    formatting = {
        fields = { "abbr", "kind", "menu" },
        format = require("lspkind").cmp_format {
            maxwidth = 50,
            ellipsis_char = "...",
            mode = "symbol_text",
            symbol_map = {},
        },
    },

    mapping = {
        ["<C-p>"] = cmp.mapping.select_prev_item(),
        ["<C-n>"] = cmp.mapping.select_next_item(),
        ["<C-d>"] = cmp.mapping.scroll_docs(-4),
        ["<C-f>"] = cmp.mapping.scroll_docs(4),
        ["<C-Space>"] = cmp.mapping.complete(),
        ["<C-e>"] = cmp.mapping.close(),
        ["<CR>"] = cmp.mapping.confirm {
            behavior = cmp.ConfirmBehavior.Insert,
            select = true,
        },
        ["<Tab>"] = cmp.mapping(function(fallback)
            if cmp.visible() then
                cmp.select_next_item()
            elseif require("luasnip").expand_or_jumpable() then
                vim.fn.feedkeys(vim.api.nvim_replace_termcodes("<Plug>luasnip-expand-or-jump", true, true, true), "")
            else
                fallback()
            end
        end, { "i", "s" }),
        ["<S-Tab>"] = cmp.mapping(function(fallback)
            if cmp.visible() then
                cmp.select_prev_item()
            elseif require("luasnip").jumpable(-1) then
                vim.fn.feedkeys(vim.api.nvim_replace_termcodes("<Plug>luasnip-jump-prev", true, true, true), "")
            else
                fallback()
            end
        end, { "i", "s" }),
    },
    sources = {
        { name = "nvim_lsp" },
        { name = "luasnip" },
        {
            name = "buffer",
            option = {
                -- Avoid accidentally running on big files
                get_bufnrs = function()
                    local buf = vim.api.nvim_get_current_buf()
                    local byte_size = vim.api.nvim_buf_get_offset(buf, vim.api.nvim_buf_line_count(buf))
                    if byte_size > 1024 * 1024 then -- 1 Megabyte max
                        return {}
                    end
                    return { buf }
                end,
            },
        },
        { name = "nvim_lua" },
        { name = "path" },
    },
}
cmp.setup(options)