-- VIM OPTIONS START --

local vim = vim
vim.o.number = true
vim.o.relativenumber = true
vim.o.tabstop = 4
vim.o.shiftwidth = 4
vim.o.expandtab = true
vim.o.signcolumn = "yes"
vim.o.swapfile = false
vim.g.mapleader = " "
vim.o.winborder = "single"

-- Make 'j' and 'k' navigate visual lines (not logical lines)
vim.keymap.set("n", "j", "gj", { noremap = true, silent = true })
vim.keymap.set("n", "k", "gk", { noremap = true, silent = true })
vim.keymap.set("v", "j", "gj", { noremap = true, silent = true })
vim.keymap.set("v", "k", "gk", { noremap = true, silent = true })


-- VIM OPTIONS END --

-- PLUGINS START --

vim.pack.add({
    { src = "https://github.com/ellisonleao/gruvbox.nvim" },
    { src = "https://github.com/stevearc/oil.nvim" },
    { src = "https://github.com/echasnovski/mini.pick" },
    { src = "https://github.com/neovim/nvim-lspconfig" },
    { src = "https://github.com/nvim-treesitter/nvim-treesitter" },
    { src = "https://github.com/Saghen/blink.cmp",                   version = "v1.6.0", },
    { src = "https://github.com/mason-org/mason.nvim" },
    { src = "https://github.com/dimitry-ishenko-neovim/lualine-nvim" },
    { src = "https://github.com/chomosuke/typst-preview.nvim" },
    { src = "https://github.com/kosayoda/nvim-lightbulb" },
    { src = "https://codeberg.org/mfussenegger/nvim-jdtls.git",      dependencies = { "https://codeberg.org/mfussenegger/nvim-dap.git" } },
    { src = "https://github.com/m4xshen/autoclose.nvim", },
    { src = "https://codeberg.org/mfussenegger/nvim-dap.git" },
    { src = "https://github.com/romgrk/barbar.nvim" },
    { src = "https://github.com/nvim-tree/nvim-web-devicons" },
    { src = "https://github.com/lewis6991/gitsigns.nvim" },
})

vim.cmd("colorscheme gruvbox")

require("oil").setup()
require("mini.pick").setup()
require("blink.cmp").setup({
    keymap = { preset = "super-tab" },
})
require("nvim-treesitter.configs").setup({
    auto_install = true,
    highlight = { enable = true },
    indent = { enable = true },
})
require("mason").setup()
require("lualine").setup {
    options = {
        theme = "gruvbox_dark",
    }
}
require("typst-preview").setup()
require("nvim-lightbulb").setup({ autocmd = { enabled = true } })
require("autoclose").setup()

-- PLUGINS END --

-- LSP START --

vim.lsp.enable({ "lua_ls", "ts_ls", "svelte", "tailwindcss", "cssls", "bashls", "rust_analyzer", "clangd", "clang-format",
    "taplo",
    "sourcekit", "lemminx", "tinymist", "jsonls" })

vim.lsp.config["tinymist"] = {
    cmd = { "tinymist" },
    filetypes = { "typst" },
    settings = {
        formatterMode = "typstyle",
    },
}

vim.lsp.config("jdtls", {
    root_dir = vim.fn.getcwd(),
    settings = {
        java = {
        },
    },
})

vim.api.nvim_create_autocmd('FileType', {
    pattern = 'java',
    callback = function(args)
        local project_name = vim.fn.fnamemodify(vim.fn.getcwd(), ":p:h:t")
        local workspace_dir = vim.fn.stdpath("data") ..
            package.config:sub(1, 1) .. "jdtls-workspace" .. package.config:sub(1, 1) .. project_name
        local os_name = vim.loop.os_uname().sysname
        local config = {
            -- The command that starts the language server
            -- See: https://github.com/eclipse/eclipse.jdt.ls#running-from-the-command-line
            cmd = {

                -- 💀
                "java", -- or '/path/to/java17_or_newer/bin/java'
                -- depends on if `java` is in your $PATH env variable and if it points to the right version.

                "-Declipse.application=org.eclipse.jdt.ls.core.id1",
                "-Dosgi.bundles.defaultStartLevel=4",
                "-Declipse.product=org.eclipse.jdt.ls.core.product",
                "-Dlog.protocol=true",
                "-Dlog.level=ALL",
                "-Xmx1g",
                "--add-modules=ALL-SYSTEM",
                "--add-opens",
                "java.base/java.util=ALL-UNNAMED",
                "--add-opens",
                "java.base/java.lang=ALL-UNNAMED",

                -- 💀
                "-jar",
                vim.fn.stdpath("data") ..
                package.config:sub(1, 1) ..
                "mason" ..
                package.config:sub(1, 1) ..
                "packages" ..
                package.config:sub(1, 1) ..
                "jdtls" ..
                package.config:sub(1, 1) ..
                "plugins" .. package.config:sub(1, 1) .. "org.eclipse.equinox.launcher_1.7.100.v20251014-1222.jar",
                -- Must point to the                                                     Change this to
                -- eclipse.jdt.ls installation                                           the actual version

                -- 💀
                "-configuration",
                vim.fn.stdpath("data") ..
                package.config:sub(1, 1) ..
                "mason" ..
                package.config:sub(1, 1) ..
                "packages" ..
                package.config:sub(1, 1) ..
                "jdtls" ..
                package.config:sub(1, 1) ..
                "config_" .. (os_name == "Windows_NT" and "win" or os_name == "Linux" and "linux" or "mac"),
                -- eclipse.jdt.ls installation            Depending on your system.

                -- 💀
                -- See `data directory configuration` section in the README
                "-data",
                workspace_dir,
            },

            -- 💀
            -- This is the default if not provided, you can remove it. Or adjust as needed.
            -- One dedicated LSP server & client will be started per unique root_dir
            root_dir = require("jdtls.setup").find_root({ ".git", "mvnw", "gradlew" }),

            -- Here you can configure eclipse.jdt.ls specific settings
            -- See https://github.com/eclipse/eclipse.jdt.ls/wiki/Running-the-JAVA-LS-server-from-the-command-line#initialize-request
            -- for a list of options
            settings = {
                java = {},
            },

            -- Language server `initializationOptions`
            -- You need to extend the `bundles` with paths to jar files
            -- if you want to use additional eclipse.jdt.ls plugins.
            --
            -- See https://github.com/mfussenegger/nvim-jdtls#java-debug-installation
            --
            -- If you don't plan on using the debugger or other eclipse.jdt.ls plugins you can remove this
            init_options = {
                bundles = { vim.fn.glob("/home/jannikdonker/.local/share/nvim/mason/share/java-debug-adapter/com.microsoft.java.debug.plugin.jar", 1) },
            },
        }
        -- This starts a new client & server,
        -- or attaches to an existing client & server depending on the `root_dir`.
        require("jdtls").start_or_attach(config)
    end
})

-- LSP END --

-- KEYMAP START --

local map = vim.keymap
local opts = { noremap = true, silent = true }

map.set("n", "<leader>gf", vim.lsp.buf.format)
map.set("n", "<leader>gd", vim.lsp.buf.definition)
map.set("n", "<leader>gD", vim.lsp.buf.declaration)
map.set("n", "<leader>ca", vim.lsp.buf.code_action, { desc = "Code Action" })
map.set("n", "<leader>rn", vim.lsp.buf.rename, { desc = "Rename symbol" })

map.set("n", "<C-f>", ":Pick files<CR>")
map.set("n", "<C-g>", ":Pick grep_live<CR>")
map.set("n", "<C-h>", ":Pick help<CR>")
map.set("n", "<C-e>", ":Oil<CR>")

map.set("n", "<leader>dg", function()
    vim.diagnostic.setqflist()
    vim.cmd("copen")
end, { desc = "Show diagnostics in quickfix list" })
map.set("n", "<leader>qf>", function()
    local qf_win = vim.fn.getwininfo(vim.fn.getqflist({ winid = 0 }).winid)
    if not qf_win or #qf_win == 0 then
        vim.cmd("copen")
    else
        vim.cmd("cclose")
    end
end, { desc = "Toggle quickfix list" })

local map = vim.api.nvim_set_keymap
local opts = { noremap = true, silent = true }

-- Move to previous/next
map('n', '<A-,>', '<Cmd>BufferPrevious<CR>', opts)
map('n', '<A-.>', '<Cmd>BufferNext<CR>', opts)

-- Re-order to previous/next
map('n', '<A-<>', '<Cmd>BufferMovePrevious<CR>', opts)
map('n', '<A->>', '<Cmd>BufferMoveNext<CR>', opts)

-- Goto buffer in position...
map('n', '<A-1>', '<Cmd>BufferGoto 1<CR>', opts)
map('n', '<A-2>', '<Cmd>BufferGoto 2<CR>', opts)
map('n', '<A-3>', '<Cmd>BufferGoto 3<CR>', opts)
map('n', '<A-4>', '<Cmd>BufferGoto 4<CR>', opts)
map('n', '<A-5>', '<Cmd>BufferGoto 5<CR>', opts)
map('n', '<A-6>', '<Cmd>BufferGoto 6<CR>', opts)
map('n', '<A-7>', '<Cmd>BufferGoto 7<CR>', opts)
map('n', '<A-8>', '<Cmd>BufferGoto 8<CR>', opts)
map('n', '<A-9>', '<Cmd>BufferGoto 9<CR>', opts)
map('n', '<A-0>', '<Cmd>BufferLast<CR>', opts)
-- Pin/unpin buffer
map('n', '<A-p>', '<Cmd>BufferPin<CR>', opts)
-- Close buffer
map('n', '<A-w>', '<Cmd>BufferClose<CR>', opts)

-- Magic buffer-picking mode
map('n', '<C-p>',   '<Cmd>BufferPick<CR>', opts)
map('n', '<C-s-p>', '<Cmd>BufferPickDelete<CR>', opts)

-- KEYMAP END --

vim.diagnostic.config({
    virtual_text = {
        prefix = "●",
        spacing = 2,
        source = "if_many",
    },
    severity_sort = true,
})

-- Toggle spell check with <leader>sc
vim.keymap.set("n", "<leader>sc", function()
    vim.wo.spell = not vim.wo.spell
    print("Spell checking: " .. (vim.wo.spell and "ON" or "OFF"))
end, { desc = "Toggle spell checking" })

-- Switch between English and German with <leader>sl
vim.keymap.set("n", "<leader>sl", function()
    local current = vim.opt.spelllang:get()[1] or ""
    local new_lang = current == "en" and "de" or "en"
    vim.opt.spelllang = new_lang
    print("Spell language: " .. new_lang)
end, { desc = "Switch spell language" })