vim.loader.enable()

local Plug = vim.fn['plug#']

vim.call('plug#begin')
	-- General Plugins
Plug 'preservim/nerdtree' -- File Tree
Plug 'ggandor/leap.nvim' -- line hopping
Plug 'folke/todo-comments.nvim' -- Todo Comments
Plug 'folke/trouble.nvim' -- Error List
Plug 'nvim-tree/nvim-web-devicons'
Plug 'windwp/nvim-autopairs'
Plug 'tpope/vim-surround'
Plug 'RRethy/vim-illuminate'
Plug 'numToStr/Comment.nvim'
Plug 'ryanoasis/vim-devicons'
Plug 'mhinz/vim-startify'
	-- VCS 
Plug 'lewis6991/gitsigns.nvim'
	-- Telescope
Plug 'nvim-lua/plenary.nvim'
Plug 'nvim-telescope/telescope.nvim'
	-- Mason
Plug 'williamboman/mason.nvim'
Plug 'williamboman/mason-lspconfig.nvim'
	-- Rust-tools
Plug 'neovim/nvim-lspconfig'
Plug 'simrat39/rust-tools.nvim'
	-- Auto Complete & Snippets
Plug 'hrsh7th/nvim-cmp' -- Completion framework
Plug 'hrsh7th/cmp-nvim-lsp' -- LSP Completion Source
	-- Completion Sources
Plug 'hrsh7th/cmp-nvim-lua' -- 
Plug 'hrsh7th/cmp-nvim-lsp-signature-help'
Plug 'hrsh7th/cmp-vsnip'                             
Plug 'hrsh7th/cmp-path'                              
Plug 'hrsh7th/cmp-buffer'                            
Plug 'hrsh7th/vim-vsnip'
	-- Debugging
Plug 'puremourning/vimspector'
vim.call('plug#end')

	-- Mason Setup
require("mason").setup({
    ui = {
        icons = {
            package_installed = "",
            package_pending = "",
            package_uninstalled = "",
        },
    }
})
require("mason-lspconfig").setup()

	-- Rust-tools Setup
local opts = {
  tools = { -- rust-tools options

    -- how to execute terminal commands
    -- options right now: termopen / quickfix / toggleterm / vimux
    executor = require("rust-tools.executors").termopen,

    -- callback to execute once rust-analyzer is done initializing the workspace
    -- The callback receives one parameter indicating the `health` of the server: "ok" | "warning" | "error"
    on_initialized = nil,

    -- automatically call RustReloadWorkspace when writing to a Cargo.toml file.
    reload_workspace_from_cargo_toml = true,

    -- These apply to the default RustSetInlayHints command
    inlay_hints = {
      -- automatically set inlay hints (type hints)
      -- default: true
      auto = true,

      -- Only show inlay hints for the current line
      only_current_line = false,

      -- whether to show parameter hints with the inlay hints or not
      -- default: true
      show_parameter_hints = true,

      -- prefix for parameter hints
      -- default: "<-"
      parameter_hints_prefix = "<- ",

      -- prefix for all the other hints (type, chaining)
      -- default: "=>"
      other_hints_prefix = "=> ",

      -- whether to align to the length of the longest line in the file
      max_len_align = false,

      -- padding from the left if max_len_align is true
      max_len_align_padding = 1,

      -- whether to align to the extreme right or not
      right_align = false,

      -- padding from the right if right_align is true
      right_align_padding = 7,

      -- The color of the hints
      highlight = "Comment",
    },

    -- options same as lsp hover / vim.lsp.util.open_floating_preview()
    hover_actions = {

      -- the border that is used for the hover window
      -- see vim.api.nvim_open_win()
      border = {
        { "╭", "FloatBorder" },
        { "─", "FloatBorder" },
        { "╮", "FloatBorder" },
        { "│", "FloatBorder" },
        { "╯", "FloatBorder" },
        { "─", "FloatBorder" },
        { "╰", "FloatBorder" },
        { "│", "FloatBorder" },
      },

      -- Maximal width of the hover window. Nil means no max.
      max_width = nil,

      -- Maximal height of the hover window. Nil means no max.
      max_height = nil,

      -- whether the hover action window gets automatically focused
      -- default: false
      auto_focus = false,
    },

    -- settings for showing the crate graph based on graphviz and the dot
    -- command
    crate_graph = {
      -- Backend used for displaying the graph
      -- see: https://graphviz.org/docs/outputs/
      -- default: x11
      backend = "x11",
      -- where to store the output, nil for no output stored (relative
      -- path from pwd)
      -- default: nil
      output = nil,
      -- true for all crates.io and external crates, false only the local
      -- crates
      -- default: true
      full = true,

      -- List of backends found on: https://graphviz.org/docs/outputs/
      -- Is used for input validation and autocompletion
      -- Last updated: 2021-08-26
      enabled_graphviz_backends = {
        "bmp",
        "cgimage",
        "canon",
        "dot",
        "gv",
        "xdot",
        "xdot1.2",
        "xdot1.4",
        "eps",
        "exr",
        "fig",
        "gd",
        "gd2",
        "gif",
        "gtk",
        "ico",
        "cmap",
        "ismap",
        "imap",
        "cmapx",
        "imap_np",
        "cmapx_np",
        "jpg",
        "jpeg",
        "jpe",
        "jp2",
        "json",
        "json0",
        "dot_json",
        "xdot_json",
        "pdf",
        "pic",
        "pct",
        "pict",
        "plain",
        "plain-ext",
        "png",
        "pov",
        "ps",
        "ps2",
        "psd",
        "sgi",
        "svg",
        "svgz",
        "tga",
        "tiff",
        "tif",
        "tk",
        "vml",
        "vmlz",
        "wbmp",
        "webp",
        "xlib",
        "x11",
      },
    },
  },

  -- all the opts to send to nvim-lspconfig
  -- these override the defaults set by rust-tools.nvim
  -- see https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md#rust_analyzer
  server = {
    -- standalone file support
    -- setting it to false may improve startup time
    standalone = true,
  }, -- rust-analyzer options

  -- debugging stuff
  dap = {
    adapter = {
      type = "executable",
      command = "lldb-vscode",
      name = "rt_lldb",
    },
  },
}

require('rust-tools').setup(opts)
    
	-- Auto Complete & Snippets setup
local cmp = require'cmp'
cmp.setup({
  -- Enable LSP snippets
  snippet = {
    expand = function(args)
        vim.fn["vsnip#anonymous"](args.body)
    end,
  },
  mapping = cmp.mapping.preset.insert({
    ['<C-p>'] = cmp.mapping.select_prev_item(),
    ['<C-n>'] = cmp.mapping.select_next_item(),
    -- Add tab support
    ['<S-Tab>'] = cmp.mapping.select_prev_item(),
    ['<Tab>'] = cmp.mapping.select_next_item(),
    ['<C-S-f>'] = 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,
    })
  }),
  -- Installed sources:
  sources = {
    { name = 'path' },                              -- file paths
    { name = 'nvim_lsp', keyword_length = 3 },      -- from language server
    { name = 'nvim_lsp_signature_help'},            -- display function signatures with current parameter emphasized
    { name = 'nvim_lua', keyword_length = 2},       -- complete neovim's Lua runtime API such vim.lsp.*
    { name = 'buffer', keyword_length = 2 },        -- source current buffer
    { name = 'vsnip', keyword_length = 2 },         -- nvim-cmp source for vim-vsnip 
    { name = 'calc'},                               -- source for math calculation
  },
  window = {
      completion = cmp.config.window.bordered(),
      documentation = cmp.config.window.bordered(),
  },
  formatting = {
      fields = {'menu', 'abbr', 'kind'},
      format = function(entry, item)
          local menu_icon ={
              nvim_lsp = 'λ',
              vsnip = '⋗',
              buffer = 'Ω',
              path = '🖫',
          }
          item.menu = menu_icon[entry.source.name]
          return item
      end,
  },
})

-- Telescope Setup
local builtin = require('telescope.builtin')
vim.keymap.set('n', '<leader>ff', builtin.find_files, {})
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, {})

	--- Leap Setup
require('leap').create_default_mappings()

	-- Todo Comments Setup
require('todo-comments').setup()

	-- Error List Setup
require('trouble').setup()

	--- Autopairs Setup
require('nvim-autopairs').setup()

	-- Illuminate Setup
-- default configuration
require('illuminate').configure({
    -- providers: provider used to get references in the buffer, ordered by priority
    providers = {
        'lsp',
        'treesitter',
        'regex',
    },
    -- delay: delay in milliseconds
    delay = 100,
    -- filetype_overrides: filetype specific overrides.
    -- The keys are strings to represent the filetype while the values are tables that
    -- supports the same keys passed to .configure except for filetypes_denylist and filetypes_allowlist
    filetype_overrides = {},
    -- filetypes_denylist: filetypes to not illuminate, this overrides filetypes_allowlist
    filetypes_denylist = {
        'dirbuf',
        'dirvish',
        'fugitive',
    },
    -- filetypes_allowlist: filetypes to illuminate, this is overridden by filetypes_denylist
    -- You must set filetypes_denylist = {} to override the defaults to allow filetypes_allowlist to take effect
    filetypes_allowlist = {},
    -- modes_denylist: modes to not illuminate, this overrides modes_allowlist
    -- See `:help mode()` for possible values
    modes_denylist = {},
    -- modes_allowlist: modes to illuminate, this is overridden by modes_denylist
    -- See `:help mode()` for possible values
    modes_allowlist = {},
    -- providers_regex_syntax_denylist: syntax to not illuminate, this overrides providers_regex_syntax_allowlist
    -- Only applies to the 'regex' provider
    -- Use :echom synIDattr(synIDtrans(synID(line('.'), col('.'), 1)), 'name')
    providers_regex_syntax_denylist = {},
    -- providers_regex_syntax_allowlist: syntax to illuminate, this is overridden by providers_regex_syntax_denylist
    -- Only applies to the 'regex' provider
    -- Use :echom synIDattr(synIDtrans(synID(line('.'), col('.'), 1)), 'name')
    providers_regex_syntax_allowlist = {},
    -- under_cursor: whether or not to illuminate under the cursor
    under_cursor = true,
    -- large_file_cutoff: number of lines at which to use large_file_config
    -- The `under_cursor` option is disabled when this cutoff is hit
    large_file_cutoff = nil,
    -- large_file_config: config to use for large files (based on large_file_cutoff).
    -- Supports the same keys passed to .configure
    -- If nil, vim-illuminate will be disabled for large files.
    large_file_overrides = nil,
    -- min_count_to_highlight: minimum number of matches required to perform highlighting
    min_count_to_highlight = 1,
    -- should_enable: a callback that overrides all other settings to
    -- enable/disable illumination. This will be called a lot so don't do
    -- anything expensive in it.
    should_enable = function(bufnr) return true end,
    -- case_insensitive_regex: sets regex case sensitivity
    case_insensitive_regex = false,
})

	-- Comment Setup
require('Comment').setup()
	
	-- VCS Setup
require('gitsigns').setup()