vim: update alpha config

1 files changed, 125 insertions, 45 deletions

diff --git a/.vim/lua/plugins.lua b/.vim/lua/plugins.lua
index c8f013c..3f109fe 100644
--- a/.vim/lua/plugins.lua
+++ b/.vim/lua/plugins.lua
@@ -978,15 +978,32 @@ return require('packer').startup({function()
   use {'goolord/alpha-nvim', -- {{{
     config = function()
       local alpha = require('alpha')
-      local them = require('alpha.themes.startify')
-      local hr = function()
-          local margin = 3; return string.rep(' ', margin) .. string.rep('─', vim.o.columns-(2*margin))
-        end
-      them.opts.layout = {
-        {type = 'padding', val = 1},
-        them.section.header,
-        {type = 'padding', val = 1},
-        {
+      local them = require('alpha.themes.theta')
+      local MAX_WIDTH = 80
+      local header = require('alpha.themes.dashboard').section.header
+      local button = function(...)
+        local b = require('alpha.themes.dashboard').button(...)
+        b.opts = vim.tbl_extend('force', b.opts, {
+          hl = 'Normal',
+          width = MAX_WIDTH,
+        })
+        return b
+      end
+      local pad = function(str, max_width)
+        return str .. string.rep(' ', ((max_width or vim.opt.columns:get())  - vim.fn.strdisplaywidth(str)))
+      end
+      local hr = function(margin, max_width) -- {{{
+        return {
+          type = 'text',
+          val = string.rep(' ', margin) .. string.rep('─', max_width - (2*margin)),
+          opts = {
+            position = 'center',
+            hl = 'Comment',
+          }
+        }
+      end -- }}}
+      local fortune = function(margin, max_width) -- {{{
+        return {
           type = 'text',
           val = function()
             local j = require('plenary.job'):new({
@@ -998,64 +1015,127 @@ return require('packer').startup({function()
             local new = {}
             for i = 1, #lines do
               if not (vim.trim(lines[i]) == '') then
-                new[#new+1] = string.rep(' ', 3) .. lines[i]
+                local line = string.rep(' ', margin) .. lines[i]
+                new[#new+1] = line
               end
             end
             return new
+            -- return require('alpha.fortune')(max_width)
           end,
           opts = {
+            position = 'center',
             hl = 'AlphaFortune',
+          },
+        }
+      end -- }}}
+      local here = function(max_width) -- {{{
+        return {
+          type = 'text',
+          val = function() return pad('❱  ' .. vim.loop.cwd(), max_width) end,
+          opts = {
+            position = 'center',
+            hl = 'Title',
           }
-        },
-        {type = 'padding', val = 1},
-        {type = 'text', val = hr, opts = {hl = 'Comment'}},
-        {type = 'padding', val = 1},
-        {
-          type = 'group',
-          val = {
-            them.button('e', '󰈔  new',            [[<cmd>ene <bar> startinsert<cr>]]),
-            them.button('r', '󰈸  live grep',      [[<cmd>lua require('misc').live_grep()<cr>]]),
-            them.button('f', '󰝰  find files',     [[<cmd>lua require('misc').find_files()<cr>]]),
-            them.button('m', '󰥔  mru',            [[<cmd>lua require('telescope.builtin').oldfiles()<cr>]]),
-            them.button('o', '󰃶  orgmode',        [[<cmd>lua require('packer').loader('orgmode.nvim'); require('orgmode').action('agenda.prompt')<cr>]]),
-            them.button('u', '󰚰  update plugins', [[<cmd>lua require('packer').sync()<cr>]]),
-            them.button('c', '󰂓  edit config',    [[<cmd>lua require('telescope.builtin').find_files({search_dirs={vim.env.HOME..'/.vim/'}})<cr>]]),
-            them.button('M', '󰇮  mail',           [[<cmd>Himalaya<cr>]]),
-          }
-        },
-        {type = 'padding', val = 1},
-        {type = 'text', val = function() return ' ❱  ' .. vim.loop.cwd() end, opts = {hl = 'Title'}},
-        {type = 'padding', val = 1},
-        {
+        }
+      end -- }}}
+      local mru = function(max_width) -- {{{
+        return {
           type = 'group',
           val = function()
             local cwd = vim.loop.cwd()
             local oldfiles = {}
             for _, v in pairs(vim.v.oldfiles) do
               if #oldfiles == 10 then break end
-              if vim.startswith(v, cwd) then
-                oldfiles[#oldfiles+1] = v
+              if vim.startswith(v, cwd) and (vim.fn.filereadable(v) == 1) then
+                table.insert(oldfiles, v)
               end
             end
-            local val = {}
+            if not oldfiles or #oldfiles == 0 then return {} end
+            local items = {}
+            table.insert(items, {
+              type = 'text',
+              val = pad('MRU:', max_width),
+              opts = { position = 'center', hl = 'Comment' }
+            })
             for i, fn in pairs(oldfiles) do
               local shortfn = vim.fn.fnamemodify(fn, ':.')
-              val[#val+1] = them.button(tostring(i-1), shortfn, ":e " .. fn .. " <cr>")
+              if vim.fn.strdisplaywidth(shortfn) > max_width then
+                shortfn = require('plenary.path').new(shortfn):shorten(1, {-2, -1})
+              end
+              if vim.fn.strdisplaywidth(shortfn) > max_width then
+                local over = vim.fn.strdisplaywidth(shortfn) - max_width
+                over = over + 4
+                shortfn = '_ ' .. shortfn:sub(over+1, -1)
+              end
+              table.insert(items, button(tostring(i-1), shortfn, ":e " .. fn .. " <cr>"))
             end
-            return val
+            return items
           end,
-        },
+          opts = {
+            position = 'center',
+          },
+        }
+      end -- }}}
+      local buffers = function(max_width) -- {{{
+        return {
+          type = 'group',
+          val = function()
+            local items = {}
+            local bufnrs = vim.tbl_filter(function(bufnr)
+              if 1 ~= vim.fn.buflisted(bufnr) then
+                return false
+              end
+              return true
+            end, vim.api.nvim_list_bufs())
+            table.sort(bufnrs, function(a, b)
+              return vim.fn.getbufinfo(a)[1].lastused > vim.fn.getbufinfo(b)[1].lastused
+            end)
+            if not bufnrs or #bufnrs == 0 then return {} end
+            -- add padding and hr
+            table.insert(items, {type = 'padding', val = 1})
+            table.insert(items, hr(0, MAX_WIDTH))
+            table.insert(items, {
+              type = 'text',
+              val = pad('Buffers:', max_width),
+              opts = { position = 'center', hl = 'Comment' }
+            })
+            for _, bufnr in ipairs(bufnrs) do
+              local bufpath = require('plenary.path').new(vim.fn.getbufinfo(bufnr)[1].name):shorten(1, {-2, -1})
+              table.insert(items, button('b'..bufnr, bufpath, ':b'..bufnr..'<cr>'))
+            end
+            return items
+          end,
+          opts = {
+            position = 'center',
+          },
+        }
+      end -- }}}
+      them.config.layout = {
+        {type = 'padding', val = 2},
+        header,
+        {type = 'padding', val = 1},
+        fortune(0, MAX_WIDTH),
+        {type = 'padding', val = 1},
+        hr(0, MAX_WIDTH),
+        {type = 'padding', val = 1},
+        {type = 'group', val = {
+          button('e', '󰈔  new',            [[<cmd>ene <bar> startinsert<cr>]]),
+          button('r', '󰈸  live grep',      [[<cmd>lua require('misc').live_grep()<cr>]]),
+          button('f', '󰝰  find files',     [[<cmd>lua require('misc').find_files()<cr>]]),
+          button('m', '󰥔  mru',            [[<cmd>lua require('telescope.builtin').oldfiles()<cr>]]),
+          -- button('o', '󰃶  orgmode',        [[<cmd>lua require('packer').loader('orgmode.nvim'); require('orgmode').action('agenda.prompt')<cr>]]),
+          button('T', '󰃶  todos',          [[<cmd>lua require('telescope._extensions.todo-comments').exports.todo {cwd=vim.env.ZK_NOTEBOOK_DIR}<cr>]]),
+          button('u', '󰚰  update plugins', [[<cmd>lua require('packer').sync()<cr>]]),
+          button('v', '󰂓  edit config',    [[<cmd>lua require('telescope.builtin').find_files {search_dirs={vim.env.HOME..'/.vim/'}}<cr>]]),
+          button('M', '󰇮  mail',           [[<cmd>Himalaya<cr>]]),
+        }},
         {type = 'padding', val = 1},
-        {type = 'text', val = hr, opts = {hl = 'Comment'}},
+        here(MAX_WIDTH),
         {type = 'padding', val = 1},
-        -- {
-        --   type = 'group',
-        --   val = {
-        --     them.button('q', 'quit', [[:quit<cr>]]),
-        --   },
-        -- },
+        mru(MAX_WIDTH),
+        buffers(MAX_WIDTH),
       }
-      alpha.setup(them.opts)
+      alpha.setup(them.config)
 
       do
         local group = vim.api.nvim_create_augroup('AlphaIndent', { clear = true })