1 files changed, 222 insertions, 0 deletions
diff --git a/lua/core/info.lua b/lua/core/info.lua
new file mode 100644
index 00000000..56fc3ca2
--- /dev/null
+++ b/lua/core/info.lua
@@ -0,0 +1,222 @@
+local M = {}
+local u = require "utils"
+local null_ls_handler = require "lsp.null-ls"
+local indent = "  "
+
+M.banner = {
+  " ",
+  indent
+    .. "⠀⣿⡟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀   ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀  ⠀⠀     ⠀⠀⠀   ⠀⠀ ⣺⡿⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀",
+  indent
+    .. "⠀⣿⠇⠀⠀⠀⠀⠀⣤⡄⠀⠀⢠⣤⡄⠀.⣠⣤⣤⣤⡀⠀⠀⢀⣤⣤⣤⣤⡄⠀⠀⠀⣤⣄⣤⣤⣤⠀⠀ ⣿⣯  ⣿⡟⠀   ⣤⣤⠀⠀⠀⠀⣠⣤⣤⣤⣄⣤⣤",
+  indent
+    .. "⢠⣿⠀⠀⠀⠀⠀⠀⣿⠃⠀⠀⣸⣿⠁⠀⣿⣿⠉⠀⠈⣿⡇⠀⠀⠛⠋⠀⠀⢹⣿⠀⠀⠀⣿⠏⠀⠸⠿⠃⠀⣿⣿⠀⣰⡟⠀⠀⠀⠀⠀⢸⣿⠀⠀⠀⠀⣿⡟⢸⣿⡇⢀⣿",
+  indent
+    .. "⣸⡇⠀⠀⠀⠀⠀⢸⣿⠀⠀⠀⣿⡟⠀⢠⣿⡇⠀⠀⢰⣿⡇⠀⣰⣾⠟⠛⠛⣻⡇⠀⠀⢸⡿⠀⠀⠀⠀⠀⠀⢻⣿⢰⣿⠀⠀⠀⠀⠀⠀⣾⡇⠀⠀⠀⢸⣿⠇⢸⣿⠀⢸⡏",
+  indent
+    .. "⣿⣧⣤⣤⣤⡄⠀⠘⣿⣤⣤⡤⣿⠇⠀⢸⣿⠁⠀⠀⣼⣿⠀⠀⢿⣿⣤⣤⠔⣿⠃⠀⠀⣾⡇⠀⠀⠀⠀⠀⠀⢸⣿⣿⠋⠀⠀⠀⢠⣤⣤⣿⣥⣤⡄⠀⣼⣿⠀⣸⡏⠀⣿⠃",
+  indent
+    .. "⠉⠉⠉⠉⠉⠁⠀⠀⠈⠉⠉⠀⠉⠀⠀⠈⠉⠀⠀⠀⠉⠉⠀⠀⠀⠉⠉⠁⠈⠉⠀⠀⠀⠉⠀⠀⠀⠀⠀⠀⠀⠈⠉⠉⠀⠀⠀⠀⠈⠉⠉⠉⠉⠉⠁⠀⠉⠁⠀⠉⠁⠀⠉⠀",
+  "",
+}
+
+local function str_list(list)
+  return "[ " .. table.concat(list, ", ") .. " ]"
+end
+
+local function get_formatter_suggestion_msg(ft)
+  local supported_formatters = u.get_supported_formatters_by_filetype(ft)
+  return {
+    indent
+      .. "───────────────────────────────────────────────────────────────────",
+    "",
+    indent .. " HINT ",
+    "",
+    indent .. "* List of supported formatters: " .. str_list(supported_formatters),
+    indent .. "* Configured formatter needs to be installed and executable.",
+    indent .. "* Enable installed formatter(s) with following config in ~/.config/lvim/config.lua",
+    "",
+    indent .. "  lvim.lang." .. tostring(ft) .. [[.formatting = { { exe = ']] .. table.concat(
+      supported_formatters,
+      "│"
+    ) .. [[' } }]],
+    "",
+  }
+end
+
+local function get_linter_suggestion_msg(ft)
+  local supported_linters = u.get_supported_linters_by_filetype(ft)
+  return {
+    indent
+      .. "───────────────────────────────────────────────────────────────────",
+    "",
+    indent .. " HINT ",
+    "",
+    indent .. "* List of supported linters: " .. str_list(supported_linters),
+    indent .. "* Configured linter needs to be installed and executable.",
+    indent .. "* Enable installed linter(s) with following config in ~/.config/lvim/config.lua",
+    "",
+    indent
+      .. "  lvim.lang."
+      .. tostring(ft)
+      .. [[.linters = { { exe = ']]
+      .. table.concat(supported_linters, "│")
+      .. [[' } }]],
+    "",
+  }
+end
+
+---creates an average size popup
+---@param buf_lines a list of lines to print
+---@param callback could be used to set syntax highlighting rules for example
+---@return bufnr buffer number of the created buffer
+---@return win_id window ID of the created popup
+function M.create_simple_popup(buf_lines, callback)
+  -- runtime/lua/vim/lsp/util.lua
+  local bufnr = vim.api.nvim_create_buf(false, true)
+  local height_percentage = 0.9
+  local width_percentage = 0.8
+  local row_start_percentage = (1 - height_percentage) / 2
+  local col_start_percentage = (1 - width_percentage) / 2
+  local opts = {}
+  opts.relative = "editor"
+  opts.height = math.min(math.ceil(vim.o.lines * height_percentage), #buf_lines)
+  opts.row = math.ceil(vim.o.lines * row_start_percentage)
+  opts.col = math.floor(vim.o.columns * col_start_percentage)
+  opts.width = math.floor(vim.o.columns * width_percentage)
+  opts.style = "minimal"
+  opts.border = "rounded"
+  --[[
+  opts.border = {
+    lvim.builtin.telescope.defaults.borderchars[5], -- "┌",
+    lvim.builtin.telescope.defaults.borderchars[3], -- "-",
+    lvim.builtin.telescope.defaults.borderchars[6], -- "┐",
+    lvim.builtin.telescope.defaults.borderchars[2], -- "|",
+    lvim.builtin.telescope.defaults.borderchars[7], -- "┘",
+    lvim.builtin.telescope.defaults.borderchars[3], -- "-",
+    lvim.builtin.telescope.defaults.borderchars[8], -- "└",
+    lvim.builtin.telescope.defaults.borderchars[4], -- "|",
+  }
+  --]]
+
+  local win_id = vim.api.nvim_open_win(bufnr, true, opts)
+
+  vim.api.nvim_win_set_buf(win_id, bufnr)
+  -- this needs to be window option!
+  vim.api.nvim_win_set_option(win_id, "number", false)
+  vim.cmd "setlocal nocursorcolumn"
+  vim.cmd "setlocal wrap"
+  -- set buffer options
+  vim.api.nvim_buf_set_option(bufnr, "filetype", "lspinfo")
+  vim.lsp.util.close_preview_autocmd({ "BufHidden", "BufLeave" }, win_id)
+  buf_lines = vim.lsp.util._trim(buf_lines, {})
+  vim.api.nvim_buf_set_lines(bufnr, 0, -1, false, buf_lines)
+  vim.api.nvim_buf_set_option(bufnr, "modifiable", false)
+  if type(callback) == "function" then
+    callback()
+  end
+  return bufnr, win_id
+end
+
+local function tbl_set_highlight(terms, highlight_group)
+  if type(terms) ~= "table" then
+    return
+  end
+
+  for _, v in pairs(terms) do
+    vim.cmd('let m=matchadd("' .. highlight_group .. '", "' .. v .. '")')
+  end
+end
+
+function M.toggle_popup(ft)
+  local client = u.get_active_client_by_ft(ft)
+  local is_client_active = false
+  local client_enabled_caps = {}
+  local client_name = ""
+  local client_id = 0
+  local document_formatting = false
+  local missing_linters = {}
+  local missing_formatters = {}
+  local num_caps = 0
+  local null_ls_providers = null_ls_handler.get_registered_providers_by_filetype(ft)
+  if client ~= nil then
+    is_client_active = not client.is_stopped()
+    client_enabled_caps = require("lsp").get_ls_capabilities(client.id)
+    num_caps = vim.tbl_count(client_enabled_caps)
+    client_name = client.name
+    client_id = client.id
+    document_formatting = client.resolved_capabilities.document_formatting
+  end
+  if lvim.lang[ft] ~= nil then
+    missing_linters = lvim.lang[ft].linters._failed_requests or {}
+    missing_formatters = lvim.lang[ft].formatters._failed_requests or {}
+  end
+
+  local buf_lines = {}
+  vim.list_extend(buf_lines, M.banner)
+
+  local header = {
+    indent .. "Detected filetype:     " .. tostring(ft),
+    indent .. "Treesitter active:     " .. tostring(next(vim.treesitter.highlighter.active) ~= nil),
+    "",
+  }
+  vim.list_extend(buf_lines, header)
+
+  local lsp_info = {
+    indent .. "Language Server Protocol (LSP) info",
+    indent .. "* Associated server:   " .. client_name,
+    indent .. "* Active:              " .. tostring(is_client_active) .. " (id: " .. tostring(client_id) .. ")",
+    indent .. "* Supports formatting: " .. tostring(document_formatting),
+    indent .. "* Capabilities list:   " .. table.concat(vim.list_slice(client_enabled_caps, 1, num_caps / 2), ", "),
+    indent .. indent .. indent .. table.concat(vim.list_slice(client_enabled_caps, ((num_caps / 2) + 1)), ", "),
+    "",
+  }
+  vim.list_extend(buf_lines, lsp_info)
+
+  local null_ls_info = {
+    indent .. "Formatters and linters",
+    indent .. "* Configured providers: " .. table.concat(null_ls_providers, "  , ") .. "  ",
+  }
+  vim.list_extend(buf_lines, null_ls_info)
+
+  local missing_formatters_status
+  if vim.tbl_count(missing_formatters) > 0 then
+    missing_formatters_status = {
+      indent .. "* Missing formatters:   " .. table.concat(missing_formatters, "  , ") .. "  ",
+    }
+    vim.list_extend(buf_lines, missing_formatters_status)
+  end
+
+  local missing_linters_status
+  if vim.tbl_count(missing_linters) > 0 then
+    missing_linters_status = {
+      indent .. "* Missing linters:      " .. table.concat(missing_linters, "  , ") .. "  ",
+    }
+    vim.list_extend(buf_lines, missing_linters_status)
+  end
+
+  vim.list_extend(buf_lines, { "" })
+
+  vim.list_extend(buf_lines, get_formatter_suggestion_msg(ft))
+
+  vim.list_extend(buf_lines, get_linter_suggestion_msg(ft))
+
+  local function set_syntax_hl()
+    vim.cmd [[highlight LvimInfoIdentifier gui=bold]]
+    vim.cmd [[highlight link LvimInfoHeader Type]]
+    vim.cmd [[let m=matchadd("DashboardHeader", "Language Server Protocol (LSP) info")]]
+    vim.cmd [[let m=matchadd("DashboardHeader", "Formatters and linters")]]
+    vim.cmd('let m=matchadd("LvimInfoIdentifier", " ' .. ft .. '$")')
+    vim.cmd 'let m=matchadd("string", "true")'
+    vim.cmd 'let m=matchadd("error", "false")'
+    tbl_set_highlight(null_ls_providers, "LvimInfoIdentifier")
+    tbl_set_highlight(missing_formatters, "LvimInfoIdentifier")
+    tbl_set_highlight(missing_linters, "LvimInfoIdentifier")
+    -- tbl_set_highlight(u.get_supported_formatters_by_filetype(ft), "LvimInfoIdentifier")
+    -- tbl_set_highlight(u.get_supported_linters_by_filetype(ft), "LvimInfoIdentifier")
+    vim.cmd('let m=matchadd("LvimInfoIdentifier", "' .. client_name .. '")')
+  end
+
+  return M.create_simple_popup(buf_lines, set_syntax_hl)
+end
+return M