local map = require 'config.helpers.keymap'
local n   = map 'n'
local nv  = map { 'n', 'v' }


---@type LazyPluginSpec[]
return {

  -- Theme
  {
    'rebelot/kanagawa.nvim',
    lazy     = false,
    priority = math.huge,
    config = function()
      vim.cmd 'colorscheme kanagawa'
    end,
  },

  -- Status line
  {
    'nvim-lualine/lualine.nvim',
    dependencies = {
      'nvim-tree/nvim-web-devicons',
    },
    config = true,
  },

  -- Fuzzy search
  {
    'nvim-telescope/telescope.nvim',
    branch = '0.1.x',
    dependencies = {
      'nvim-lua/plenary.nvim',
      { 'nvim-telescope/telescope-fzf-native.nvim', build = 'make' }
    },
    config = function()
      local telescope = require 'telescope'
      local builtin   = require 'telescope.builtin'
      local ext       = telescope.extensions

      telescope.load_extension 'fzf'
      telescope.load_extension 'notify'

      telescope.setup {
        extensions = {
          fzf = {
            fuzzy = true,
            override_generic_sorter = true,
            override_file_sorter = true,
            case_mode = 'smart_case',
          }
        }
      }

      n '<leader>ff' (builtin.find_files) 'Telescope: files'
      n '<leader>fb' (builtin.buffers)    'Telescope: buffers'
      n '<leader>fg' (builtin.live_grep)  'Telescope: grep'
      n '<leader>fh' (builtin.help_tags)  'Telescope: docs'
      n '<Leader>fk' (builtin.keymaps)    'Telescope: keymaps'
      n '<leader>fn' (ext.notify.notify)  'Telescope: notifications'
    end,
  },

  -- Treesitter
  {
    'nvim-treesitter/nvim-treesitter',
    build = ':TSUpdate',
    dependencies = {
      'nvim-treesitter/nvim-treesitter-textobjects'
    },
    config = function()
      local configs = require 'nvim-treesitter.configs'

      configs.setup {
        modules          = {},
        auto_install     = false,
        sync_install     = false,
        ignore_install   = {},
        ensure_installed = {
          -- neovim
          'vimdoc', 'lua', 'query', 'fennel',
          -- data
          'json', 'xml', 'yaml', 'toml',
          -- markdown
          'markdown', 'markdown_inline',
          -- latex
          'latex', 'bibtex',
          -- git
          'gitcommit', 'gitignore', 'diff',
          -- misc
          'comment', 'dockerfile', 'regex',
          -- shell
          'bash',
          -- python
          'python',
          -- systems
          'rust', 'c',
          -- webdev
          'html', 'css', 'scss', 'javascript', 'jsdoc', 'typescript', 'tsx', 'astro', 'svelte',
          -- haskell
          'haskell',
        },
        highlight = { enable = true },
        indent    = { enable = true },
        incremental_selection = {
          enable = true,
          keymaps = {
            node_incremental  = 'v',
            node_decremental  = 'V',
          },
        },
        textobjects = {
          select = {
            enable = true,
            keymaps = {
              ['af'] = '@function.outer',
              ['if'] = '@function.inner',
              ['a?'] = '@conditional.outer',
              ['i?'] = '@conditional.inner',
            }
          },
          move = {
            enable = true,
            goto_next_start = {
              [']f'] = '@function.outer',
            },
            goto_previous_start = {
              ['[f'] = '@function.outer',
            }
          }
        }
      }
    end,
    init = function()
      local lang = vim.treesitter.language

      lang.register('markdown', 'mdx')
      lang.register('markdown', 'lhaskell')
    end,
  },

  -- Keymap hints
  {
    'folke/which-key.nvim',
    init = function()
      vim.o.timeout = true
      vim.o.timeoutlen = 300
    end,
    config = true
  },

  -- Notifications
  {
    'rcarriga/nvim-notify',
    config = function()
      vim.notify = require 'notify'
    end
  },

  -- Project errors
  {
    "folke/trouble.nvim",
    branch = "dev",
    config = function ()
      local trouble = require 'trouble'

      n '<leader>tt' '<cmd>Trouble diagnostics toggle<cr>'                        'Trouble: Diagnostics'
      n '<leader>tT' '<cmd>Trouble diagnostics toggle filter.buf=0<cr>'           'Trouble: Diagnostics (buffer)'
      n '<leader>ts' '<cmd>Trouble symbols toggle focus=false<cr>'                'Trouble: Symbols'
      -- n '<leader>cl' '<cmd>Trouble lsp toggle focus=false win.position=right<cr>' 'LSP Definitions / references / ... (Trouble)'
      -- n '<leader>xL' '<cmd>Trouble loclist toggle<cr>'                            'Location List (Trouble)'
      -- n '<leader>xQ' '<cmd>Trouble qflist toggle<cr>'                             'Quickfix List (Trouble)'

      trouble.setup {}
    end,
  },

  -- Breadcrumbs
  {
    'Bekaboo/dropbar.nvim',
    dependencies = {
      { 'nvim-telescope/telescope-fzf-native.nvim', build = 'make' }
    }
  },

  -- Git - file hunks
  {
    'lewis6991/gitsigns.nvim',
    config = function()
      local gs = require 'gitsigns'

      gs.setup {
        on_attach = function()
          n '<Leader>hp' (gs.preview_hunk)    'Hunk: preview'
          n '<Leader>hs' (gs.stage_hunk)      'Hunk: stage'
          n '<Leader>hu' (gs.undo_stage_hunk) 'Hunk: unstage'
          n '<Leader>hr' (gs.reset_hunk)      'Hunk: reset'
          n '<leader>hS' (gs.stage_buffer)    'Hunk: buffer stage'
          n '<leader>hR' (gs.reset_buffer)    'Hunk: buffer reset'
          n '<leader>hd' (gs.toggle_deleted)  'Hunk: show deleted'
        end
      }
    end,
  },

  -- Git - project diff
  {
    'sindrets/diffview.nvim',
    dependencies = {
      'nvim-lua/plenary.nvim',
      'nvim-tree/nvim-web-devicons',
    },
    config = function()
      local lib = require 'diffview.lib'

      local function toggle(name)
        return function()
          if not next(lib.views) then
            vim.cmd(name)
          else
            vim.cmd 'DiffviewClose'
          end
        end
      end

      n '<Leader>gd' (toggle 'DiffviewOpen')        'Git: Diff'
      n '<Leader>gh' (toggle 'DiffviewFileHistory') 'Git: History'
    end
  },

  -- Color hints
  {
    'NvChad/nvim-colorizer.lua',
    ft = { 'css', 'scss' },
    config = true,
  },

  -- {
  --   dir = '~/Desktop/disasm.nvim',
  --   ft = { 'c' },
  --   config = function()
  --     local disasm = require 'disasm'
  --
  --     n '<Leader>a'  (disasm.disassemble)       'Disasm: Disassemble'
  --     n '<Leader>Af' (disasm.disassemble_full)  'Disasm: Disassemble full'
  --     n '<Leader>Ac' (disasm.reconfigure)       'Disasm: Configure'
  --     n '<Leader>AC' (disasm.save_config)       'Disasm: Save config'
  --
  --     disasm.setup()
  --   end
  -- },

  -- Completion
  {
    'hrsh7th/nvim-cmp',
    dependencies = {
      'hrsh7th/cmp-cmdline',
      'hrsh7th/cmp-buffer',
      'hrsh7th/cmp-path',
      'hrsh7th/cmp-nvim-lsp',
    },
    config = require 'config.plugins.nvim-cmp'
  },

  -- Debugger adapter support
  {
    'mfussenegger/nvim-dap',
    dependencies = {
      'nvim-neotest/nvim-nio',
      'rcarriga/nvim-dap-ui',
    },
    config = function()
      local dap = require 'dap'
      local ui  = require 'dapui'

      n '<F5>'       (dap.continue)           'Debugger: continue'
      n '<F10>'      (dap.step_over)          'Debugger: step over'
      n '<F11>'      (dap.step_into)          'Debugger: step into'
      n '<F12>'      (dap.step_out)           'Debugger: step out'
      n '<leader>db' (dap.toggle_breakpoint)  'Debugger: toggle breakpoint'

      n  '<leader>du' (ui.toggle)             'Debugger: toggle UI'
      nv '<leader>de' (ui.eval)               'Debugger: eval'

      -- vim.api.nvim_set_hl(0, 'DapBreakpoint', { ctermbg = 0, fg = '#993939', bg = '#31353f' })
      -- vim.api.nvim_set_hl(0, 'DapLogPoint', { ctermbg = 0, fg = '#61afef', bg = '#31353f' })
      -- vim.api.nvim_set_hl(0, 'DapStopped', { ctermbg = 0, fg = '#98c379', bg = '#31353f' })
      --
      -- vim.fn.sign_define('DapBreakpoint', { text='', texthl='DapBreakpoint', linehl='DapBreakpoint', numhl='DapBreakpoint' })
      -- vim.fn.sign_define('DapBreakpointCondition', { text='ﳁ', texthl='DapBreakpoint', linehl='DapBreakpoint', numhl='DapBreakpoint' })
      -- vim.fn.sign_define('DapBreakpointRejected', { text='', texthl='DapBreakpoint', linehl='DapBreakpoint', numhl= 'DapBreakpoint' })
      -- vim.fn.sign_define('DapLogPoint', { text='', texthl='DapLogPoint', linehl='DapLogPoint', numhl= 'DapLogPoint' })
      -- vim.fn.sign_define('DapStopped', { text='', texthl='DapStopped', linehl='DapStopped', numhl= 'DapStopped' })

      ui.setup()
      dap.listeners.after.event_initialized["dapui_config"] = ui.open
      dap.listeners.after.event_terminated["dapui_config"]  = ui.close
      dap.listeners.before.event_exited["dapui_config"]     = ui.close
    end,
  },

  -- Mason
  {
    'williamboman/mason.nvim',
    config = true,
  },

  -- Automatic LSP server setup for Mason
  {
    'williamboman/mason-lspconfig.nvim',
    dependencies = {
      'williamboman/mason.nvim',
      'neovim/nvim-lspconfig',
    },
    config = function()
      local config = require 'mason-lspconfig'
      local lsp    = require 'lspconfig'
      local cmp    = require 'cmp_nvim_lsp'

      local noop   = function() end

      config.setup {
        automatic_installation = true,
        -- NOTE: hls is installed via GHCup
        ensure_installed = {
          'lua_ls',         -- Lua
          'fennel_ls',      -- Fennel
          'rust_analyzer',  -- Rust
          -- 'clangd',         -- C
          -- 'bashls',         -- Bash
          'html',           -- HTML
          'cssls',          -- CSS / SCSS
          'tsserver',       -- TypeScript
          -- 'svelte',         -- Svelte
          -- 'pyright',        -- Python
          -- 'rnix',           -- Nix
          -- 'purescriptls',   -- Purescript
          'ltex',           -- Literate - LaTeX, Markdown, etc.
          -- 'rescriptls',     -- ReScript
        },
      }

      config.setup_handlers {
        function(name)
          lsp[name].setup {
            single_file_support = true,
            capabilities = cmp.default_capabilities(),
          }
        end,
        ['rust_analyzer'] = noop, -- this is started by rustaceanvim
        ['lua_ls'] = noop,        -- this is started by neodev
      }

      local signs = {
        Error = "",
        Warn  = "",
        Hint  = "",
        Info  = "󰙎",
      }

      for sign, text in pairs(signs) do
        local name = 'DiagnosticSign' .. sign
        vim.fn.sign_define(name, { text = text, texthl = name })
      end
    end,
  },

  -- Automatic debugger install
  {
    'jay-babu/mason-nvim-dap.nvim',
    dependencies = {
      'mfussenegger/nvim-dap',
      'williamboman/mason.nvim',
    },
    config = function()
      local config = require 'mason-nvim-dap'

      config.setup {
        automatic_installation = true,
        ensure_installed = {
          'codelldb',
          --'js-debug-adapter',
        },
      }
    end,
  },

  -- Tools for Neovim
  {
    'folke/neodev.nvim',
    ft = 'lua',
    dependencies = {
      'neovim/nvim-lspconfig',
    },
    config = function()
      local neodev  = require 'neodev'
      local lsp     = require 'lspconfig'

      neodev.setup()
      lsp.lua_ls.setup {
        settings = {
          Lua = { completion = { callSnippet = 'Replace' } }
        }
      }
    end
  },

  -- Tools for Rust
  {
    'mrcjkb/rustaceanvim',
    version = '^3',
    ft = { 'rust' },
    init = function()
      require 'config.plugins.rustaceanvim'
    end
  },

  -- Tools for Haskell
  {
    'mrcjkb/haskell-tools.nvim',
    version = '^3',
    ft = { 'haskell', 'lhaskell', 'cabal', 'cabalproject' },
    dependencies = {
      'nvim-lua/plenary.nvim',
      'nvim-telescope/telescope.nvim',
    },
    init = require 'config.plugins.haskell-tools'
  },

  -- JS debugger
  -- {
  --   'mxsdev/nvim-dap-vscode-js',
  --   dependencies = {
  --     'microsoft/vscode-js-debug',
  --     version = '1.x',
  --     build = 'npm i && npm run compile vsDebugServerBundle && mv dist out',
  --   },
  --   config = function()
  --     local dap = require 'dap'
  --     --local utils = require 'dap.utils'
  --     local dap_js = require 'dap-vscode-js'
  --     --local mason = require 'mason-registry'
  --
  --     ---@diagnostic disable-next-line: missing-fields
  --     dap_js.setup {
  --       -- debugger_path = mason.get_package('js-debug-adapter'):get_install_path(),
  --       debugger_path = vim.fn.stdpath 'data' .. '/lazy/vscode-js-debug',
  --       adapters = { 'pwa-node', 'pwa-chrome', 'pwa-msedge', 'node-terminal', 'pwa-extensionHost' },
  --     }
  --
  --     local langs = { 'javascript', 'typescript', 'svelte', 'astro' }
  --     for _, lang in ipairs(langs) do
  --       dap.configurations[lang] = {
  --         {
  --           type    = 'pwa-node',
  --           request = 'attach',
  --           name    = 'Attach debugger to existing `node --inspect` process',
  --           cwd     = '${workspaceFolder}',
  --           skipFiles = {
  --             '${workspaceFolder}/node_modules/**/*.js',
  --             '${workspaceFolder}/packages/**/node_modules/**/*.js',
  --             '${workspaceFolder}/packages/**/**/node_modules/**/*.js',
  --             '<node_internals>/**',
  --             'node_modules/**',
  --           },
  --           sourceMaps = true,
  --           resolveSourceMapLocations = {
  --             '${workspaceFolder}/**',
  --             '!**/node_modules/**',
  --           },
  --         },
  --       }
  --     end
  --   end,
  -- },
}