git ssb

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var fs = require('fs')
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var h = require('hyperscript')
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exports.gives = 'command'
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exports.create = function (api) {
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  return function (file) {
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    return function (cb) {
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      fs.stat(file, function (err, stat) {
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        if(err || !stat.isFile())
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          cb()
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        else
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          fs.readFile(file, 'utf8', function (err, text) {
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            var ta = h('textarea.high', text)
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            ta.selectionStart = 0; ta.selectionEnd = 0
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            var status = h('pre.status')
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            var wrapper = h('div.column.high', {onfocus: function () {
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              ta.focus()
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            }}, ta, h('div', status))
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            var timer
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            function pos (ev) {
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              clearTimeout(timer)
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              timer = setTimeout(function () {
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              status.textContent = [ta.selectionStart, ta.selectionEnd].join(', ')
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              }, 10)
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            }
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            ta.onkeydown = pos
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            pos()
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            //make element focusable
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            wrapper.setAttribute('tabindex', '0')
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            wrapper.onkeydown = function (ev) {
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              console.log(ev.keyCode, ev)
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              if(ev.ctrlKey && ev.keyCode == 83) {//ctrl-s, save
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                fs.writeFile(file, ta.value, function (err) {
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                  if(err) status.textContent = err.message
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                  else status.textContent = 'saved '+file+', '+Buffer.byteLength(ta.value)+' bytes'
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                })
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              }
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            }
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            cb(null, wrapper)
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          })
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      })
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    }
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  }
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}
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