local util = require("util")

local data = util.merge({notification=''},{ opts = app.opts })
data.plugins = ""

function pluginInput(opt)
  local html = ""
  html = html .. [[
        <tr>
          <td>
  ]]
  html = html .. opt.title
  html = html .. [[
          </td>
          <td>
  ]]
  local value = app.opts[ opt.key:gsub("^app.opts.","") ] 
  if type(opt.values) == 'table' then
    html = html .. util.template('<select name="${key}" value="${value}">\n', {
      key   = opt.key,
      value = value
    })
    print(opt.key:gsub("^app.opts.","") )
    foreach( opt.values, function(k,v)
      html = html .. util.template('<option value="${v}">${k}</option>\n',{
        k=k,
        v=v
      })
    end)
    html = html .. "</select>\n"
  else
    html = html .. util.template('<input type="text" name="${key}" value="${value}"></input>',{
      key   = opt.key,
      value = value
    })
  end
  html = html .. util.template([[
          </td>
          <td class="col3">${info}</td>
          </td>
        </tr>
  ]],opt)
  return html
end

function pluginUI(seen)
  return function(name,plugin)
    if seen[ plugin.name ] then return end -- already processed
    seen[ plugin.name ] = true
    local plugindata = util.flatten(plugin,"plugin")
    plugindata.opts = ""
    foreach(plugin.opts, function(k,opt)
      plugindata.opts = plugindata.opts .. pluginInput(opt)
    end)
    data.plugins = data.plugins .. util.template( LoadAsset('/page/admin/plugin.html'), plugindata)  
  end
end

function saveData()
  if GetMethod() == 'POST' then
    local params = GetParams() 
    local saveconfig = false
    foreach(params, function(k,v)
      if v[1]:match("^opts.") then 
        app.opts[ v[1]:gsub("^opts.","") ] = v[2] -- update
        saveconfig = true
      end
    end)
    if saveconfig then
      app.set('app.opts', app.opts )
      data.notification = '<div class="notification">updated</div>'
    else
      data.notification = '<div class="notification">no changes detected</div>'
    end
  end
end

local seen = {}
foreach( app.plugin, pluginUI(seen) )
saveData()
local html = util.template( LoadAsset("page/admin/index.html"),data)


SetStatus(200)
SetHeader('Content-Type', 'text/html; charset=utf-8')
Write( html )