local Util = require("lazyvim.util")

return {

  -- file explorer
  {
    "nvim-neo-tree/neo-tree.nvim",
    branch = "v3.x",
    cmd = "Neotree",
    keys = {
      {
        "<leader>fe",
        function()
          require("neo-tree.command").execute({ toggle = true, dir = Util.root() })
        end,
        desc = "Explorer NeoTree (root dir)",
      },
      {
        "<leader>fE",
        function()
          require("neo-tree.command").execute({ toggle = true, dir = vim.loop.cwd() })
        end,
        desc = "Explorer NeoTree (cwd)",
      },
      { "<leader>e", "<leader>fe", desc = "Explorer NeoTree (root dir)", remap = true },
      { "<leader>E", "<leader>fE", desc = "Explorer NeoTree (cwd)", remap = true },
      {
        "<leader>ge",
        function()
          require("neo-tree.command").execute({ source = "git_status", toggle = true })
        end,
        desc = "Git explorer",
      },
      {
        "<leader>be",
        function()
          require("neo-tree.command").execute({ source = "buffers", toggle = true })
        end,
        desc = "Buffer explorer",
      },
    },
    deactivate = function()
      vim.cmd([[Neotree close]])
    end,
    init = function()
      if vim.fn.argc(-1) == 1 then
        local stat = vim.loop.fs_stat(vim.fn.argv(0))
        if stat and stat.type == "directory" then
          require("neo-tree")
        end
      end
    end,
    opts = {
      sources = { "filesystem", "buffers", "git_status", "document_symbols" },
      open_files_do_not_replace_types = { "terminal", "Trouble", "trouble", "qf", "Outline" },
      filesystem = {
        bind_to_cwd = false,
        follow_current_file = { enabled = true },
        use_libuv_file_watcher = true,
      },
      window = {
        mappings = {
          ["<space>"] = "none",
        },
      },
      default_component_configs = {
        indent = {
          with_expanders = true, -- if nil and file nesting is enabled, will enable expanders
          expander_collapsed = "",
          expander_expanded = "",
          expander_highlight = "NeoTreeExpander",
        },
      },
    },
    config = function(_, opts)
      local function on_move(data)
        Util.lsp.on_rename(data.source, data.destination)
      end

      local events = require("neo-tree.events")
      opts.event_handlers = opts.event_handlers or {}
      vim.list_extend(opts.event_handlers, {
        { event = events.FILE_MOVED, handler = on_move },
        { event = events.FILE_RENAMED, handler = on_move },
      })
      require("neo-tree").setup(opts)
      vim.api.nvim_create_autocmd("TermClose", {
        pattern = "*lazygit",
        callback = function()
          if package.loaded["neo-tree.sources.git_status"] then
            require("neo-tree.sources.git_status").refresh()
          end
        end,
      })
    end,
  },

  -- search/replace in multiple files
  {
    "nvim-pack/nvim-spectre",
    build = false,
    cmd = "Spectre",
    opts = { open_cmd = "noswapfile vnew" },
    -- stylua: ignore
    keys = {
      { "<leader>sr", function() require("spectre").open() end, desc = "Replace in files (Spectre)" },
    },
  },

  -- Fuzzy finder.
  -- The default key bindings to find files will use Telescope's
  -- `find_files` or `git_files` depending on whether the
  -- directory is a git repo.
  {
    "nvim-telescope/telescope.nvim",
    cmd = "Telescope",
    version = false, -- telescope did only one release, so use HEAD for now
    dependencies = {
      {
        "nvim-telescope/telescope-fzf-native.nvim",
        build = "make",
        enabled = vim.fn.executable("make") == 1,
        config = function()
          Util.on_load("telescope.nvim", function()
            require("telescope").load_extension("fzf")
          end)
        end,
      },
    },
    keys = {
      {
        "<leader>,",
        "<cmd>Telescope buffers sort_mru=true sort_lastused=true<cr>",
        desc = "Switch Buffer",
      },
      { "<leader>/", Util.telescope("live_grep"), desc = "Grep (root dir)" },
      { "<leader>:", "<cmd>Telescope command_history<cr>", desc = "Command History" },
      { "<leader><space>", Util.telescope("files"), desc = "Find Files (root dir)" },
      -- find
      { "<leader>fb", "<cmd>Telescope buffers sort_mru=true sort_lastused=true<cr>", desc = "Buffers" },
      { "<leader>fc", Util.telescope.config_files(), desc = "Find Config File" },
      { "<leader>ff", Util.telescope("files"), desc = "Find Files (root dir)" },
      { "<leader>fF", Util.telescope("files", { cwd = false }), desc = "Find Files (cwd)" },
      { "<leader>fr", "<cmd>Telescope oldfiles<cr>", desc = "Recent" },
      { "<leader>fR", Util.telescope("oldfiles", { cwd = vim.loop.cwd() }), desc = "Recent (cwd)" },
      -- git
      { "<leader>gc", "<cmd>Telescope git_commits<CR>", desc = "commits" },
      { "<leader>gs", "<cmd>Telescope git_status<CR>", desc = "status" },
      -- search
      { '<leader>s"', "<cmd>Telescope registers<cr>", desc = "Registers" },
      { "<leader>sa", "<cmd>Telescope autocommands<cr>", desc = "Auto Commands" },
      { "<leader>sb", "<cmd>Telescope current_buffer_fuzzy_find<cr>", desc = "Buffer" },
      { "<leader>sc", "<cmd>Telescope command_history<cr>", desc = "Command History" },
      { "<leader>sC", "<cmd>Telescope commands<cr>", desc = "Commands" },
      { "<leader>sd", "<cmd>Telescope diagnostics bufnr=0<cr>", desc = "Document diagnostics" },
      { "<leader>sD", "<cmd>Telescope diagnostics<cr>", desc = "Workspace diagnostics" },
      { "<leader>sg", Util.telescope("live_grep"), desc = "Grep (root dir)" },
      { "<leader>sG", Util.telescope("live_grep", { cwd = false }), desc = "Grep (cwd)" },
      { "<leader>sh", "<cmd>Telescope help_tags<cr>", desc = "Help Pages" },
      { "<leader>sH", "<cmd>Telescope highlights<cr>", desc = "Search Highlight Groups" },
      { "<leader>sk", "<cmd>Telescope keymaps<cr>", desc = "Key Maps" },
      { "<leader>sM", "<cmd>Telescope man_pages<cr>", desc = "Man Pages" },
      { "<leader>sm", "<cmd>Telescope marks<cr>", desc = "Jump to Mark" },
      { "<leader>so", "<cmd>Telescope vim_options<cr>", desc = "Options" },
      { "<leader>sR", "<cmd>Telescope resume<cr>", desc = "Resume" },
      { "<leader>sw", Util.telescope("grep_string", { word_match = "-w" }), desc = "Word (root dir)" },
      { "<leader>sW", Util.telescope("grep_string", { cwd = false, word_match = "-w" }), desc = "Word (cwd)" },
      { "<leader>sw", Util.telescope("grep_string"), mode = "v", desc = "Selection (root dir)" },
      { "<leader>sW", Util.telescope("grep_string", { cwd = false }), mode = "v", desc = "Selection (cwd)" },
      { "<leader>uC", Util.telescope("colorscheme", { enable_preview = true }), desc = "Colorscheme with preview" },
      {
        "<leader>ss",
        function()
          require("telescope.builtin").lsp_document_symbols({
            symbols = require("lazyvim.config").get_kind_filter(),
          })
        end,
        desc = "Goto Symbol",
      },
      {
        "<leader>sS",
        function()
          require("telescope.builtin").lsp_dynamic_workspace_symbols({
            symbols = require("lazyvim.config").get_kind_filter(),
          })
        end,
        desc = "Goto Symbol (Workspace)",
      },
    },
    opts = function()
      local actions = require("telescope.actions")

      local open_with_trouble = function(...)
        return require("trouble.providers.telescope").open_with_trouble(...)
      end
      local open_selected_with_trouble = function(...)
        return require("trouble.providers.telescope").open_selected_with_trouble(...)
      end
      local find_files_no_ignore = function()
        local action_state = require("telescope.actions.state")
        local line = action_state.get_current_line()
        Util.telescope("find_files", { no_ignore = true, default_text = line })()
      end
      local find_files_with_hidden = function()
        local action_state = require("telescope.actions.state")
        local line = action_state.get_current_line()
        Util.telescope("find_files", { hidden = true, default_text = line })()
      end

      return {
        defaults = {
          prompt_prefix = " ",
          selection_caret = " ",
          -- open files in the first window that is an actual file.
          -- use the current window if no other window is available.
          get_selection_window = function()
            local wins = vim.api.nvim_list_wins()
            table.insert(wins, 1, vim.api.nvim_get_current_win())
            for _, win in ipairs(wins) do
              local buf = vim.api.nvim_win_get_buf(win)
              if vim.bo[buf].buftype == "" then
                return win
              end
            end
            return 0
          end,
          mappings = {
            i = {
              ["<c-t>"] = open_with_trouble,
              ["<a-t>"] = open_selected_with_trouble,
              ["<a-i>"] = find_files_no_ignore,
              ["<a-h>"] = find_files_with_hidden,
              ["<C-Down>"] = actions.cycle_history_next,
              ["<C-Up>"] = actions.cycle_history_prev,
              ["<C-f>"] = actions.preview_scrolling_down,
              ["<C-b>"] = actions.preview_scrolling_up,
            },
            n = {
              ["q"] = actions.close,
            },
          },
        },
      }
    end,
  },

  -- Flash enhances the built-in search functionality by showing labels
  -- at the end of each match, letting you quickly jump to a specific
  -- location.
  {
    "folke/flash.nvim",
    event = "VeryLazy",
    vscode = true,
    ---@type Flash.Config
    opts = {},
    -- stylua: ignore
    keys = {
      { "s", mode = { "n", "x", "o" }, function() require("flash").jump() end, desc = "Flash" },
      { "S", mode = { "n", "o", "x" }, function() require("flash").treesitter() end, desc = "Flash Treesitter" },
      { "r", mode = "o", function() require("flash").remote() end, desc = "Remote Flash" },
      { "R", mode = { "o", "x" }, function() require("flash").treesitter_search() end, desc = "Treesitter Search" },
      { "<c-s>", mode = { "c" }, function() require("flash").toggle() end, desc = "Toggle Flash Search" },
    },
  },

  -- Flash Telescope config
  {
    "nvim-telescope/telescope.nvim",
    optional = true,
    opts = function(_, opts)
      if not Util.has("flash.nvim") then
        return
      end
      local function flash(prompt_bufnr)
        require("flash").jump({
          pattern = "^",
          label = { after = { 0, 0 } },
          search = {
            mode = "search",
            exclude = {
              function(win)
                return vim.bo[vim.api.nvim_win_get_buf(win)].filetype ~= "TelescopeResults"
              end,
            },
          },
          action = function(match)
            local picker = require("telescope.actions.state").get_current_picker(prompt_bufnr)
            picker:set_selection(match.pos[1] - 1)
          end,
        })
      end
      opts.defaults = vim.tbl_deep_extend("force", opts.defaults or {}, {
        mappings = { n = { s = flash }, i = { ["<c-s>"] = flash } },
      })
    end,
  },

  -- which-key helps you remember key bindings by showing a popup
  -- with the active keybindings of the command you started typing.
  {
    "folke/which-key.nvim",
    event = "VeryLazy",
    opts = {
      plugins = { spelling = true },
      defaults = {
        mode = { "n", "v" },
        ["g"] = { name = "+goto" },
        ["gs"] = { name = "+surround" },
        ["]"] = { name = "+next" },
        ["["] = { name = "+prev" },
        ["<leader><tab>"] = { name = "+tabs" },
        ["<leader>b"] = { name = "+buffer" },
        ["<leader>c"] = { name = "+code" },
        ["<leader>f"] = { name = "+file/find" },
        ["<leader>g"] = { name = "+git" },
        ["<leader>gh"] = { name = "+hunks" },
        ["<leader>q"] = { name = "+quit/session" },
        ["<leader>s"] = { name = "+search" },
        ["<leader>u"] = { name = "+ui" },
        ["<leader>w"] = { name = "+windows" },
        ["<leader>x"] = { name = "+diagnostics/quickfix" },
      },
    },
    config = function(_, opts)
      local wk = require("which-key")
      wk.setup(opts)
      wk.register(opts.defaults)
    end,
  },

  -- git signs highlights text that has changed since the list
  -- git commit, and also lets you interactively stage & unstage
  -- hunks in a commit.
  {
    "lewis6991/gitsigns.nvim",
    event = "LazyFile",
    opts = {
      signs = {
        add = { text = "▎" },
        change = { text = "▎" },
        delete = { text = "" },
        topdelete = { text = "" },
        changedelete = { text = "▎" },
        untracked = { text = "▎" },
      },
      on_attach = function(buffer)
        local gs = package.loaded.gitsigns

        local function map(mode, l, r, desc)
          vim.keymap.set(mode, l, r, { buffer = buffer, desc = desc })
        end

        -- stylua: ignore start
        map("n", "]h", gs.next_hunk, "Next Hunk")
        map("n", "[h", gs.prev_hunk, "Prev Hunk")
        map({ "n", "v" }, "<leader>ghs", ":Gitsigns stage_hunk<CR>", "Stage Hunk")
        map({ "n", "v" }, "<leader>ghr", ":Gitsigns reset_hunk<CR>", "Reset Hunk")
        map("n", "<leader>ghS", gs.stage_buffer, "Stage Buffer")
        map("n", "<leader>ghu", gs.undo_stage_hunk, "Undo Stage Hunk")
        map("n", "<leader>ghR", gs.reset_buffer, "Reset Buffer")
        map("n", "<leader>ghp", gs.preview_hunk, "Preview Hunk")
        map("n", "<leader>ghb", function() gs.blame_line({ full = true }) end, "Blame Line")
        map("n", "<leader>ghd", gs.diffthis, "Diff This")
        map("n", "<leader>ghD", function() gs.diffthis("~") end, "Diff This ~")
        map({ "o", "x" }, "ih", ":<C-U>Gitsigns select_hunk<CR>", "GitSigns Select Hunk")
      end,
    },
  },

  -- Automatically highlights other instances of the word under your cursor.
  -- This works with LSP, Treesitter, and regexp matching to find the other
  -- instances.
  {
    "RRethy/vim-illuminate",
    event = "LazyFile",
    opts = {
      delay = 200,
      large_file_cutoff = 2000,
      large_file_overrides = {
        providers = { "lsp" },
      },
    },
    config = function(_, opts)
      require("illuminate").configure(opts)

      local function map(key, dir, buffer)
        vim.keymap.set("n", key, function()
          require("illuminate")["goto_" .. dir .. "_reference"](false)
        end, { desc = dir:sub(1, 1):upper() .. dir:sub(2) .. " Reference", buffer = buffer })
      end

      map("]]", "next")
      map("[[", "prev")

      -- also set it after loading ftplugins, since a lot overwrite [[ and ]]
      vim.api.nvim_create_autocmd("FileType", {
        callback = function()
          local buffer = vim.api.nvim_get_current_buf()
          map("]]", "next", buffer)
          map("[[", "prev", buffer)
        end,
      })
    end,
    keys = {
      { "]]", desc = "Next Reference" },
      { "[[", desc = "Prev Reference" },
    },
  },

  -- buffer remove
  {
    "echasnovski/mini.bufremove",

    keys = {
      {
        "<leader>bd",
        function()
          local bd = require("mini.bufremove").delete
          if vim.bo.modified then
            local choice = vim.fn.confirm(("Save changes to %q?"):format(vim.fn.bufname()), "&Yes\n&No\n&Cancel")
            if choice == 1 then -- Yes
              vim.cmd.write()
              bd(0)
            elseif choice == 2 then -- No
              bd(0, true)
            end
          else
            bd(0)
          end
        end,
        desc = "Delete Buffer",
      },
      -- stylua: ignore
      { "<leader>bD", function() require("mini.bufremove").delete(0, true) end, desc = "Delete Buffer (Force)" },
    },
  },

  -- better diagnostics list and others
  {
    "folke/trouble.nvim",
    cmd = { "TroubleToggle", "Trouble" },
    opts = { use_diagnostic_signs = true },
    keys = {
      { "<leader>xx", "<cmd>TroubleToggle document_diagnostics<cr>", desc = "Document Diagnostics (Trouble)" },
      { "<leader>xX", "<cmd>TroubleToggle workspace_diagnostics<cr>", desc = "Workspace Diagnostics (Trouble)" },
      { "<leader>xL", "<cmd>TroubleToggle loclist<cr>", desc = "Location List (Trouble)" },
      { "<leader>xQ", "<cmd>TroubleToggle quickfix<cr>", desc = "Quickfix List (Trouble)" },
      {
        "[q",
        function()
          if require("trouble").is_open() then
            require("trouble").previous({ skip_groups = true, jump = true })
          else
            local ok, err = pcall(vim.cmd.cprev)
            if not ok then
              vim.notify(err, vim.log.levels.ERROR)
            end
          end
        end,
        desc = "Previous trouble/quickfix item",
      },
      {
        "]q",
        function()
          if require("trouble").is_open() then
            require("trouble").next({ skip_groups = true, jump = true })
          else
            local ok, err = pcall(vim.cmd.cnext)
            if not ok then
              vim.notify(err, vim.log.levels.ERROR)
            end
          end
        end,
        desc = "Next trouble/quickfix item",
      },
    },
  },

  -- Finds and lists all of the TODO, HACK, BUG, etc comment
  -- in your project and loads them into a browsable list.
  {
    "folke/todo-comments.nvim",
    cmd = { "TodoTrouble", "TodoTelescope" },
    event = "LazyFile",
    config = true,
    -- stylua: ignore
    keys = {
      { "]t", function() require("todo-comments").jump_next() end, desc = "Next todo comment" },
      { "[t", function() require("todo-comments").jump_prev() end, desc = "Previous todo comment" },
      { "<leader>xt", "<cmd>TodoTrouble<cr>", desc = "Todo (Trouble)" },
      { "<leader>xT", "<cmd>TodoTrouble keywords=TODO,FIX,FIXME<cr>", desc = "Todo/Fix/Fixme (Trouble)" },
      { "<leader>st", "<cmd>TodoTelescope<cr>", desc = "Todo" },
      { "<leader>sT", "<cmd>TodoTelescope keywords=TODO,FIX,FIXME<cr>", desc = "Todo/Fix/Fixme" },
    },
  },
}