local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({
    "git",
    "clone",
    "--filter=blob:none",
    "https://github.com/folke/lazy.nvim.git",
    "--branch=stable", -- latest stable release
    lazypath,
  })
end
vim.opt.rtp:prepend(lazypath)

-- Install plugins using lazy
require('lazy').setup({
    { 'tpope/vim-commentary', },
    { 'tpope/vim-fugitive', },
    { 'sheerun/vim-polyglot',
        init = function()
            -- vim-polyglot confusingly registers *.comp both for perl and for glsl
            vim.api.nvim_set_var('polyglot_disabled', {'perl'})
        end,
    },
    {
        'morhetz/gruvbox',
        lazy = false,
        priority = 1000,
        config = function()
            vim.opt.background = 'dark'
            vim.g.gruvbox_italic = 1
            vim.cmd([[colorscheme gruvbox]])
        end,
    },
    {
        "folke/tokyonight.nvim",
        lazy = true,
        -- config = function()
        --   -- load the colorscheme here
        --   vim.cmd([[colorscheme tokyonight]])
        -- end,
    },
    { 'nvim-telescope/telescope-fzf-native.nvim',
        build = 'cmake -S. -Bbuild -DCMAKE_BUILD_TYPE=Release && cmake --build build --config Release && cmake --install build --prefix build'
    },
    {
        'nvim-telescope/telescope.nvim', tag = '0.1.8',
        dependencies = { 'nvim-lua/plenary.nvim' },
        config = function()
            local telescope = require('telescope')

            telescope.setup{
                -- defaults = {
                -- }
                extensions = {
                    fzf = {
                        fuzzy = true,                    -- false will only do exact matching
                        override_generic_sorter = true,  -- override the generic sorter
                        override_file_sorter = true,     -- override the file sorter
                        case_mode = "smart_case",        -- or "ignore_case" or "respect_case"
                                                                                         -- the default case_mode is "smart_case"
                    }
                }
            }

            --telescope.load_extension('fzy')
            telescope.load_extension('fzf')

            local builtin = require('telescope.builtin')
            vim.keymap.set('n', '<C-p>', builtin.find_files, {})
            vim.keymap.set('n', '<leader>ft', builtin.treesitter, {})
            vim.keymap.set('n', '<leader>fg', builtin.live_grep, {})
            vim.keymap.set('n', '<leader>fb', builtin.buffers, {})
            vim.keymap.set('n', '<leader>fh', builtin.help_tags, {})
        end
    },
    { "nvim-treesitter/nvim-treesitter",
        build = ":TSUpdate",
        config = function()
            require("nvim-treesitter.configs").setup {
                ensure_installed = { "c", "cpp", "pascal", "lua", "glsl", "yaml" },
                highlight = { enable = true, }
            }
        end
    },
    {
        'neovim/nvim-lspconfig',
        config = function()
            -- Setup language servers.
            local lspconfig = require('lspconfig')
            --lspconfig.clangd.setup {}
            --lspconfig.neocmake.setup {}

            -- Global mappings.
            -- See `:help vim.diagnostic.*` for documentation on any of the below functions
            vim.keymap.set('n', '<space>e', vim.diagnostic.open_float)
            vim.keymap.set('n', '[d', vim.diagnostic.goto_prev)
            vim.keymap.set('n', ']d', vim.diagnostic.goto_next)
            vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist)

            -- Use LspAttach autocommand to only map the following keys
            -- after the language server attaches to the current buffer
            vim.api.nvim_create_autocmd('LspAttach', {
                group = vim.api.nvim_create_augroup('UserLspConfig', {}),
                callback = function(ev)
                    -- Enable completion triggered by <c-x><c-o>
                    vim.bo[ev.buf].omnifunc = 'v:lua.vim.lsp.omnifunc'

                    -- Buffer local mappings.
                    -- See `:help vim.lsp.*` for documentation on any of the below functions
                    local opts = { buffer = ev.buf }
                    vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, opts)
                    vim.keymap.set('n', 'gd', vim.lsp.buf.definition, opts)
                    vim.keymap.set('n', 'K', vim.lsp.buf.hover, opts)
                    vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, opts)
                    vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, opts)
                    vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, opts)
                    vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, opts)
                    vim.keymap.set('n', '<space>wl', function()
                        print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
                    end, opts)
                    vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition, opts)
                    vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, opts)
                    vim.keymap.set({ 'n', 'v' }, '<space>ca', vim.lsp.buf.code_action, opts)
                    vim.keymap.set('n', 'gr', vim.lsp.buf.references, opts)
                    vim.keymap.set('n', '<space>f', function()
                        vim.lsp.buf.format { async = true }
                    end, opts)
                end,
            })
        end
    },
    {
        'hrsh7th/nvim-cmp',
        dependencies = {
            'neovim/nvim-lspconfig',
            'hrsh7th/cmp-nvim-lsp',
            'hrsh7th/cmp-buffer',
            'hrsh7th/cmp-path',
            'hrsh7th/cmp-cmdline',
            'hrsh7th/cmp-vsnip',
            'hrsh7th/vim-vsnip',
            'hrsh7th/cmp-nvim-lsp-signature-help',
        },
        config = function()
            local cmp = require'cmp'
            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.
                    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),
                    ['<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.
                }),
                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' },
                    { name = 'nvim_lsp_signature_help' },
                })
            })

            -- Set configuration for specific filetype.
            cmp.setup.filetype('gitcommit', {
                sources = cmp.config.sources({
                    { name = 'git' }, -- You can specify the `git` source if [you were installed it](https://github.com/petertriho/cmp-git).
                }, {
                    { name = 'buffer' },
                })
            })

            cmp.setup.filetype('cmake', {
                sources = cmp.config.sources({
                    { name = 'cmake', "CMakeLists.txt" },
                }, {
                    { name = 'buffer' },
                })
            })

            -- 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' }
                })
            })

            -- Set up lspconfig.
            local capabilities = require('cmp_nvim_lsp').default_capabilities()
            -- TODO Replace <YOUR_LSP_SERVER> with each lsp server you've enabled.
            --[[require('lspconfig')['clangd'].setup {
                capabilities = capabilities
            }--]]
        end,
    },
    {
        'stevearc/aerial.nvim',
        dependencies = { 'neovim/nvim-lspconfig', },
        config = function()
            require('aerial').setup({
                -- optionally use on_attach to set keymaps when aerial has attached to a buffer
                on_attach = function(bufnr)
                    -- Jump forwards/backwards with '{' and '}'
                    vim.keymap.set('n', '{', '<cmd>AerialPrev<CR>', {buffer = bufnr})
                    vim.keymap.set('n', '}', '<cmd>AerialNext<CR>', {buffer = bufnr})
                end
            })
            -- You probably also want to set a keymap to toggle aerial
            vim.keymap.set('n', '<F8>', '<cmd>AerialToggle!<CR>')
        end,
    }
})

vim.filetype.add({
    extension = {
        vp = 'glsl',
        fp = 'glsl',
        gp = 'glsl',
        vs = 'glsl',
        fs = 'glsl',
        gs = 'glsl',
        tcs = 'glsl',
        tes = 'glsl',
        cs = 'glsl',
        vert = 'glsl',
        frag = 'glsl',
        geom = 'glsl',
        tess = 'glsl',
        shd = 'glsl',
        gls = 'glsl',
        glsl = 'glsl',
        rgen = 'glsl',
        comp = 'glsl',
        rchit = 'glsl',
        rahit = 'glsl',
        rmiss = 'glsl',
    }
})