-- [[ Install `lazy.nvim` plugin manager ]]
--    See `:help lazy.nvim.txt` or https://github.com/folke/lazy.nvim for more info
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
    error('Error cloning lazy.nvim:\n' .. out)
  end
end ---@diagnostic disable-next-line: undefined-field
vim.opt.rtp:prepend(lazypath)

require('lazy').setup({
  -- NOTE: General --
  'tpope/vim-sleuth', -- Detect tabstop and shiftwidth automatically
  { 'm4xshen/autoclose.nvim', opts = {} },
  { 'folke/todo-comments.nvim', event = 'VimEnter', dependencies = { 'nvim-lua/plenary.nvim' }, opts = {} },
  -- {
  --   "folke/tokyonight.nvim",
  --   priority = 1000,
  --   config = function()
  --     require('tokyonight').setup {
  --       styles = {
  --         comments = { italic = false }, -- Disable italics in comments
  --       },
  --     }
  --     vim.cmd.colorscheme 'tokyonight-night'
  --   end
  -- },
  {
    'navarasu/onedark.nvim',
    config = function ()
      require('onedark').load()
    end
  },


  -- NOTE: Telescope --
  {
      'nvim-telescope/telescope.nvim',
      dependencies = {
        'nvim-lua/plenary.nvim',

        {
          'nvim-telescope/telescope-fzf-native.nvim',
          build = 'make',
          cond = function()
            return vim.fn.executable 'make' == 1
          end,
        },
      },
      config = function()
        local actions = require('telescope.actions')
        local actions_state = require('telescope.actions.state')
        require('telescope').setup({
          defaults = {
            mappings = require('config.keymaps').telescope_defaults(actions)
          },
          pickers = {
            find_files = {
              mappings = {
                i = {
                  ["<CR>"] = function(prompt_bufnr)
                    local selection = actions_state.get_selected_entry()
                    actions.close(prompt_bufnr)

                    local bufname = vim.api.nvim_buf_get_name(0)
                    local is_empty = bufname == "" and not vim.bo.modified

                    if is_empty then
                      vim.cmd("edit" .. vim.fn.fnameescape(selection.path or selection.filename))
                    else
                      vim.cmd("tabnew " .. vim.fn.fnameescape(selection.path or selection.filename))
                    end
                  end
                }
              }
            }
          }
        })
        pcall(require('telescope').load_extension, 'fzf')
      end
  },

  --  NOTE: AutoCompletions, LSP --

  {
  'saghen/blink.cmp',
    event = 'VimEnter',
    version = '1.*',
    dependencies = {
      {
        'L3MON4D3/LuaSnip',
        version = '2.*',
        build = (function()
          if vim.fn.has 'win32' == 1 or vim.fn.executable 'make' == 0 then
            return
          end
          return 'make install_jsregexp'
        end)(),
        dependencies = {
          -- `friendly-snippets` contains a variety of premade snippets.
          --    See the README about individual language/framework/plugin snippets:
          --    https://github.com/rafamadriz/friendly-snippets
          -- {
          --   'rafamadriz/friendly-snippets',
          --   config = function()
          --     require('luasnip.loaders.from_vscode').lazy_load()
          --   end,
          -- },
        },
        opts = {},
      },
      'folke/lazydev.nvim',
    },
    ---@module 'blink.cmp'
    ---@type blink.cmp.Config
    opts = {
      keymap = {

        preset = 'default',
        ['<C-i>'] = { 'select_prev' },
        ['<C-k>'] = { 'select_next' },

        ['<Tab>'] = { 'select_and_accept', 'fallback'},

        -- ['<Esc>'] = { 'hide' },

      },

      appearance = { nerd_font_variant = 'mono' },

      completion = {
        -- By default, you may press `<c-space>` to show the documentation.
        -- Optionally, set `auto_show = true` to show the documentation after a delay.
        documentation = { auto_show = false, auto_show_delay_ms = 500 },
      },

      sources = {
        default = { 'lsp', 'path', 'snippets', 'lazydev' },
        providers = {
          lazydev = { module = 'lazydev.integrations.blink', score_offset = 100 },
        },
      },

      snippets = { preset = 'luasnip' },

      -- Blink.cmp includes an optional, recommended rust fuzzy matcher,
      -- which automatically downloads a prebuilt binary when enabled.
      --
      -- By default, we use the Lua implementation instead, but you may enable
      -- the rust implementation via `'prefer_rust_with_warning'`
      --
      -- See :h blink-cmp-config-fuzzy for more information
      fuzzy = { implementation = 'lua' },

      -- Shows a signature help window while you type arguments for a function
      signature = { enabled = true },
    },
  },
  {
    -- `lazydev` configures Lua LSP for your Neovim config, runtime and plugins
    -- used for completion, annotations and signatures of Neovim apis
    'folke/lazydev.nvim',
    ft = 'lua',
    opts = {
      library = {
        -- Load luvit types when the `vim.uv` word is found
        { path = '${3rd}/luv/library', words = { 'vim%.uv' } },
      },
    },
  },

  { "williamboman/mason.nvim", opts = {} },

  {
    'neovim/nvim-lspconfig',
    dependencies = {
      { "williamboman/mason.nvim", opts = {} },
      'williamboman/mason-lspconfig.nvim',
      'WhoIsSethDaniel/mason-tool-installer.nvim',

      -- Useful status updates for LSP.
      { 'j-hui/fidget.nvim', opts = {} },

      -- completeions
      'saghen/blink.cmp',
    },
    config = function()

      vim.diagnostic.config {
        severity_sort = true,
        float = { border = 'rounded', source = 'if_many' },
        underline = { severity = vim.diagnostic.severity.ERROR },
        signs = vim.g.have_nerd_font and {
          text = {
            [vim.diagnostic.severity.ERROR] = '󰅚 ',
            [vim.diagnostic.severity.WARN] = '󰀪 ',
            [vim.diagnostic.severity.INFO] = '󰋽 ',
            [vim.diagnostic.severity.HINT] = '󰌶 ',
          },
        } or {},
        virtual_text = {
          source = 'if_many',
          spacing = 2,
          format = function(diagnostic)
            local diagnostic_message = {
              [vim.diagnostic.severity.ERROR] = diagnostic.message,
              [vim.diagnostic.severity.WARN] = diagnostic.message,
              [vim.diagnostic.severity.INFO] = diagnostic.message,
              [vim.diagnostic.severity.HINT] = diagnostic.message,
            }
            return diagnostic_message[diagnostic.severity]
          end,
        },
      }

      local capabilities = require('blink.cmp').get_lsp_capabilities()
      local servers = {
        -- clangd = {},
        -- pyright = {},
        rust_analyzer = {},
        -- ... etc. See `:help lspconfig-all` for a list of all the pre-configured LSPs
        --
        -- Some languages (like typescript) have entire language plugins that can be useful:
        --    https://github.com/pmizio/typescript-tools.nvim
        --
        -- But for many setups, the LSP (`ts_ls`) will work just fine
        -- ts_ls = {},
        --

        lua_ls = {
          -- cmd = { ... },
          -- filetypes = { ... },
          -- capabilities = {},
          settings = {
            Lua = {
              completion = {
                callSnippet = 'Replace',
              },
              -- You can toggle below to ignore Lua_LS's noisy `missing-fields` warnings
              -- diagnostics = { disable = { 'missing-fields' } },
            },
          },
        },
      }

      local ensure_installed = vim.tbl_keys(servers or {})

      require('mason-tool-installer').setup { ensure_installed = ensure_installed }

      require('mason-lspconfig').setup {
        ensure_installed = {}, -- explicitly set to an empty table (already done using mason tool installer)
        automatic_installation = false,
        handlers = {
          function(server_name)
            local server = servers[server_name] or {}
            -- This handles overriding only values explicitly passed
            -- by the server configuration above. Useful when disabling
            -- certain features of an LSP (for example, turning off formatting for ts_ls)
            server.capabilities = vim.tbl_deep_extend('force', {}, capabilities, server.capabilities or {})
            require('lspconfig')[server_name].setup(server)
          end,
        }
      }
    end
  },

  -- NOTE: TreeSitter
  {
    'nvim-treesitter/nvim-treesitter',
    build = ':TSUpdate',
    main = 'nvim-treesitter.configs', -- Sets main module to use for opts
    opts = {
      ensure_installed = { 'bash', 'c', 'diff', 'html', 'lua', 'luadoc', 'markdown', 'markdown_inline', 'query', 'vim', 'vimdoc', 'rust' },
      auto_install = true,
      highlight = {
        enable = true,
        -- Some languages depend on vim's regex highlighting system (such as Ruby) for indent rules.
        --  If you are experiencing weird indenting issues, add the language to
        --  the list of additional_vim_regex_highlighting and disabled languages for indent.
        -- additional_vim_regex_highlighting = { 'ruby' },
      },
      -- indent = { enable = true, disable = { 'ruby' } },
    },
    -- There are additional nvim-treesitter modules that you can use to interact
    -- with nvim-treesitter. You should go explore a few and see what interests you:
    --
    --    - Incremental selection: Included, see `:help nvim-treesitter-incremental-selection-mod`
    --    - Show your current context: https://github.com/nvim-treesitter/nvim-treesitter-context
    --    - Treesitter + textobjects: https://github.com/nvim-treesitter/nvim-treesitter-textobjects
  },


  --  NOTE: UI --
  {
      'nanozuki/tabby.nvim',
      dependencies = 'nvim-tree/nvim-web-devicons',
      config = function()
        local theme = {
        -- this is carbonfox theme
          fill = 'TabLineFill',
          head = { fg = '#75beff', bg = '#1c1e26' },
          current_tab = { fg = '#1c1e26', bg = '#75beff' },
          tab = { fg = '#c5cdd9', bg = '#1c1e26' },
          win = { fg = '#1c1e26', bg = '#75beff' },
          tail = { fg = '#75beff', bg = '#1c1e26' },
        }

        require('tabby.tabline').set(function(line)
          return {
            {
              { '  ', hl = theme.head },
              line.sep('', theme.head, theme.fill),
            },
            line.tabs().foreach(function(tab)

              local hl = tab.is_current() and theme.current_tab or theme.tab

              -- remove count of wins in tab with [n+] included in tab.name()
              local name = tab.name()
              local index = string.find(name, "%[%d")
              local tab_name = index and string.sub(name, 1, index - 1) or name

              -- indicate if any of buffers in tab have unsaved changes
              local modified = false
              local win_ids = require('tabby.module.api').get_tab_wins(tab.id)
              for _, win_id in ipairs(win_ids) do
                  if pcall(vim.api.nvim_win_get_buf, win_id) then
                      local bufid = vim.api.nvim_win_get_buf(win_id)
                      if vim.api.nvim_buf_get_option(bufid, "modified") then
                          modified = true
                          break
                      end
                  end
              end

              return {
                line.sep('', hl, theme.fill),
                tab_name,
                modified and '',
                line.sep('', hl, theme.fill),
                hl = hl,
                margin = ' ',
              }
            end),
            line.spacer(),
            {
              line.sep('', theme.tail, theme.fill),
              { '  ', hl = theme.tail },
            },
            hl = theme.fill,
          }
        end)
      end
  },
  {
    'lewis6991/gitsigns.nvim',
    opts = {
      signs = {
          add          = { text = '┃' },
          change       = { text = '┃' },
          delete       = { text = '_' },
          topdelete    = { text = '‾' },
          changedelete = { text = '~' },
          untracked    = { text = '┆' },
        },
        signs_staged = {
          add          = { text = '┃' },
          change       = { text = '┃' },
          delete       = { text = '_' },
          topdelete    = { text = '‾' },
          changedelete = { text = '~' },
          untracked    = { text = '┆' },
        },
        signs_staged_enable = true,
        signcolumn = true
      }
  },
  {
      'nvim-lualine/lualine.nvim',
      dependencies = { 'nvim-tree/nvim-web-devicons' },
      opts = {}
  }
})