-- Set up nvim-cmp.
local cmp = require 'cmp'

-- Lua Snip
require("luasnip.loaders.from_vscode").lazy_load()

cmp.setup({
    snippet = {
        -- REQUIRED - you must specify a snippet engine
        expand = function(args)
            -- vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
            require('luasnip').lsp_expand(args.body) -- For `luasnip` users.
            -- require('snippy').expand_snippet(args.body) -- For `snippy` users.
            -- vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
            -- vim.snippet.expand(args.body) -- For native neovim snippets (Neovim v0.10+)
        end,
    },
    window = {
        -- completion = cmp.config.window.bordered(),
        -- documentation = cmp.config.window.bordered(),
    },
    mapping = cmp.mapping.preset.insert({
        ['<C-b>'] = cmp.mapping.scroll_docs(-4),
        ['<C-f>'] = cmp.mapping.scroll_docs(4),
        -- Allows selection with tab and shift-tab
        ['<S-Tab>'] = cmp.mapping.select_prev_item(select_opts),
        ['<Tab>'] = cmp.mapping.select_next_item(select_opts),
        ['<C-Space>'] = cmp.mapping.complete(),
        ['<C-e>'] = cmp.mapping.abort(),
        -- ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
        ['<CR>'] = cmp.mapping.confirm({ select = false }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
    }),
    sources = cmp.config.sources({
        { name = 'nvim_lsp' },
        -- { name = 'vsnip' }, -- For vsnip users.
        { name = 'luasnip' }, -- For luasnip users.
        -- { name = 'ultisnips' }, -- For ultisnips users.
        -- { name = 'snippy' }, -- For snippy users.
    }, {
        { name = 'buffer' },
    })
})

-- To use git you need to install the plugin petertriho/cmp-git and uncomment lines below
-- Set configuration for specific filetype.
--[[ cmp.setup.filetype('gitcommit', {
   sources = cmp.config.sources({
     { name = 'git' },
   }, {
     { name = 'buffer' },
   })
})
require("cmp_git").setup() ]]--

-- Use buffer source for `/` and `?` (if you enabled `native_menu`, this won't work anymore).
cmp.setup.cmdline({ '/', '?' }, {
    mapping = cmp.mapping.preset.cmdline(),
    sources = {
        { name = 'buffer' }
    }
})

-- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
cmp.setup.cmdline(':', {
    mapping = cmp.mapping.preset.cmdline(),
    sources = cmp.config.sources({
        { name = 'path' }
    }, {
        { name = 'cmdline' }
    }),
    matching = { disallow_symbol_nonprefix_matching = false }
})

-- Set up lspconfig.
local capabilities = require('cmp_nvim_lsp').default_capabilities()
-- Replace <YOUR_LSP_SERVER> with each lsp server you've enabled.
-- BASH
require('lspconfig')['bashls'].setup {
    capabilities = capabilities
}

-- CLANG
require('lspconfig')['clangd'].setup {
    capabilities = capabilities
}

-- CMAKE
require('lspconfig')['cmake'].setup {
    capabilities = capabilities
}

-- LUA
require('lspconfig')['lua_ls'].setup {
    capabilities = capabilities
}

-- LaTeX
require('lspconfig')['ltex'].setup {
    capabilities = capabilities
}

-- PYTHON
require('lspconfig')['pylsp'].setup {
    capabilities = capabilities
}