-- Global settings.
vim.g.mapleader = " "

vim.opt.number = true
vim.opt.cursorline = true
vim.opt.expandtab = true
vim.opt.tabstop = 4
vim.opt.softtabstop = 4
vim.opt.shiftwidth = 4

vim.filetype.add({
    extension = {
        shader = "hlsl"
    }
})

vim.opt.termguicolors = true
vim.cmd("colorscheme mweh")

----------------------------------------------
--- Lazy nvim

-- Bootstrap lazy.nvim
local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
if not (vim.uv or vim.loop).fs_stat(lazypath) then
    local lazyrepo = "https://github.com/folke/lazy.nvim.git"
    local out = vim.fn.system({ "git", "clone", "--filter=blob:none", "--branch=stable", lazyrepo, lazypath })
    if vim.v.shell_error ~= 0 then
        vim.api.nvim_echo({
            { "Failed to clone lazy.nvim:\n", "ErrorMsg" },
            { out,                            "WarningMsg" },
            { "\nPress any key to exit..." },
        }, true, {})
        vim.fn.getchar()
        os.exit(1)
    end
end
vim.opt.rtp:prepend(lazypath)

-- Setup lazy.nvim
require("lazy").setup({
    spec = {
        {
            "neovim/nvim-lspconfig",
            -- Lualine.
            { "nvim-lualine/lualine.nvim",     dependencies = { 'nvim-tree/nvim-web-devicons' }, opts = {} },
            -- Telescope.
            { "nvim-telescope/telescope.nvim", dependencies = { 'nvim-lua/plenary.nvim' } },
            -- Neo tree.
            {
                "nvim-neo-tree/neo-tree.nvim",
                dependencies = {
                    "nvim-lua/plenary.nvim",
                    "nvim-tree/nvim-web-devicons",
                    "MunifTanjim/nui.nvim"
                },
                keys = {
                    { "<C-n>", ":Neotree filesystem reveal left<CR>", {} }
                },
                opts = {}
            },
            -- Treesitter.
            { "nvim-treesitter/nvim-treesitter", build = ":TSUpdate" },
            -- Mason.
            { "mason-org/mason.nvim",            opts = {} },
            -- Mason LSP config.
            {
                "mason-org/mason-lspconfig.nvim",
                opts = {
                    ensure_installed = { "clangd", "neocmake", "jdtls", "ts_ls", "lua_ls", "pyright", "html", "cssls", "glsl_analyzer", "biome", "somesass_ls", "rust_analyzer", "texlab", },
                },
                dependencies = {
                    { "mason-org/mason.nvim", opts = {} },
                    "neovim/nvim-lspconfig",
                },
            },
            -- cmp-nvim-lsp stuff for nvim-cmp, probably.
            { "hrsh7th/cmp-nvim-lsp" },
            -- LuaSnip for Snipping.
            { "L3MON4D3/LuaSnip" },
            -- Completions with nvim-cmp
            {
                "hrsh7th/nvim-cmp",
                config = function()
                    local cmp = require("cmp")
                    require("luasnip.loaders.from_vscode").lazy_load()
                    cmp.setup({
                        snippet = {
                            expand = function(args)
                                require("luasnip").lsp_expand(args.body)
                            end,
                        },
                        window = {
                            completion = cmp.config.window.bordered(),
                            documentation = cmp.config.window.bordered(),
                        },
                        -- Keybinds for scrolling through documentation.
                        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 }),
                        }),
                        sources = cmp.config.sources({
                                { name = "nvim_lsp" },
                                { name = "luasnip" },
                            },
                            {
                                { name = "buffer" },
                            }),
                    })
                end,
            },
            -- Vimtex.
            {
                "lervag/vimtex",
                lazy = false, -- we don't want to lazy load VimTeX
                -- tag = "v2.15", -- uncomment to pin to a specific release
                init = function()
                    -- VimTeX configuration goes here, e.g.
                    vim.g.vimtex_view_method = "zathura"
                end
            },
            -- Rendering markdown
            {
                'MeanderingProgrammer/render-markdown.nvim',
                dependencies = { 'nvim-treesitter/nvim-treesitter', 'nvim-tree/nvim-web-devicons' },
                ---@module 'render-markdown'
                ---@type render.md.UserConfig
                opts = {},
            },
        },
    },
    install = { colorscheme = { "habamax" } },
    checker = { enabled = true },
})

----------------------------------------------
--- Keybinds

-- Formatting keybinds.
vim.keymap.set("n", "<leader>gf", vim.lsp.buf.format, {})

-- Telescope keybinds.
local builtin = require('telescope.builtin')
vim.keymap.set('n', '<leader>ff', builtin.find_files, { desc = 'Telescope find files' })
vim.keymap.set('n', '<leader>fg', builtin.live_grep, { desc = 'Telescope live grep' })