bsw@2: local old_draft_id = param.get("old_draft_id", atom.integer)
bsw@2: local new_draft_id = param.get("new_draft_id", atom.integer)
bsw@1045: local initiative_id = param.get("initiative_id", atom.number)
bsw@2: 
bsw@1045: if not old_draft_id 
bsw@1045:   or not new_draft_id 
bsw@1045:   or old_draft_id == new_draft_id
bsw@1045: then
bsw@1045:   slot.reset_all()
bsw@1045:   slot.select("error", function()
bsw@1045:     ui.tag{ content = _"Please choose two different versions of the draft to compare" }
bsw@1045:   end )
bsw@1045:   request.redirect{
bsw@1045:     module = "draft", view = "list", params = {
bsw@1045:       initiative_id = initiative_id
bsw@1045:     }
bsw@1045:   }
bsw@10:   return
bsw@10: end
bsw@10: 
bsw@2: if old_draft_id > new_draft_id then
jbe@1226:   old_draft_id, new_draft_id = new_draft_id, old_draft_id
bsw@2: end
bsw@2: 
bsw@2: local old_draft = Draft:by_id(old_draft_id)
bsw@2: local new_draft = Draft:by_id(new_draft_id)
bsw@2: 
bsw@1045: local initiative = new_draft.initiative
bsw@1045: 
bsw@1045: if app.session.member then
bsw@1045:   initiative:load_everything_for_member_id(app.session.member_id)
bsw@1045:   initiative.issue:load_everything_for_member_id(app.session.member_id)
bsw@1045: end
bsw@1045: 
bsw@1045: 
bsw@1045: execute.view{ module = "issue", view = "_sidebar_state", params = {
bsw@1045:   initiative = initiative
bsw@1045: } }
bsw@1045: 
bsw@1045: execute.view { 
bsw@1045:   module = "issue", view = "_sidebar_issue", 
bsw@1045:   params = {
bsw@1045:     issue = initiative.issue,
bsw@1045:     highlight_initiative_id = initiative.id
bsw@1045:   }
poelzi@160: }
poelzi@159: 
bsw@1045: execute.view {
bsw@1045:   module = "issue", view = "_sidebar_whatcanido",
bsw@1045:   params = { initiative = initiative }
bsw@1045: }
poelzi@159: 
bsw@1045: execute.view { 
bsw@1045:   module = "issue", view = "_sidebar_members", params = {
bsw@1045:     issue = initiative.issue, initiative = initiative
bsw@1045:   }
bsw@1045: }
bsw@1045: 
bsw@1045: 
bsw@1045: 
bsw@1045: execute.view {
bsw@1045:   module = "issue", view = "_head", params = {
bsw@1045:     issue = initiative.issue
bsw@1045:   }
bsw@1045: }
bsw@1045: 
bsw@1045: 
poelzi@159: 
bsw@95: local old_draft_content = string.gsub(string.gsub(old_draft.content, "\n", " ###ENTER###\n"), " ", "\n")
bsw@95: local new_draft_content = string.gsub(string.gsub(new_draft.content, "\n", " ###ENTER###\n"), " ", "\n")
bsw@95: 
jbe@1226: local key = multirand.string(24, "0123456789abcdefghijklmnopqrstuvwxyz")
bsw@2: 
bsw@1230: local old_draft_filename = encode.file_path(WEBMCP_BASE_PATH, 'tmp', "diff-" .. key .. "-old.tmp")
bsw@1230: local new_draft_filename = encode.file_path(WEBMCP_BASE_PATH, 'tmp', "diff-" .. key .. "-new.tmp")
bsw@2: 
bsw@2: local old_draft_file = assert(io.open(old_draft_filename, "w"))
bsw@95: old_draft_file:write(old_draft_content)
bsw@2: old_draft_file:write("\n")
bsw@2: old_draft_file:close()
bsw@2: 
bsw@2: local new_draft_file = assert(io.open(new_draft_filename, "w"))
bsw@95: new_draft_file:write(new_draft_content)
bsw@2: new_draft_file:write("\n")
bsw@2: new_draft_file:close()
bsw@2: 
bsw@728: local output, err, status = extos.pfilter(nil, "sh", "-c", "diff -U 1000000000 '" .. old_draft_filename .. "' '" .. new_draft_filename .. "' | grep -v ^--- | grep -v ^+++ | grep -v ^@")
bsw@2: 
bsw@2: os.remove(old_draft_filename)
bsw@2: os.remove(new_draft_filename)
bsw@2: 
bsw@95: local last_state = "first_run"
bsw@95: 
bsw@95: local function process_line(line)
bsw@95:   local state_char = string.sub(line, 1, 1)
bsw@95:   local state
bsw@95:   if state_char == "+" then
bsw@95:     state = "added"
bsw@95:   elseif state_char == "-" then
bsw@95:     state = "removed"
bsw@95:   elseif state_char == " " then
bsw@95:     state = "unchanged"
bsw@95:   end
bsw@95:   local state_changed = false
bsw@95:   if state ~= last_state then
bsw@95:     if last_state ~= "first_run" then
bsw@95:       slot.put("</span> ")
bsw@95:     end
bsw@95:     last_state = state
bsw@95:     state_changed = true
bsw@95:     slot.put("<span class=\"diff_" .. tostring(state) .. "\">")
bsw@95:   end
bsw@95: 
bsw@95:   line = string.sub(line, 2, #line)
bsw@95:   if line ~= "###ENTER###" then
bsw@95:     if not state_changed then
bsw@95:       slot.put(" ")
bsw@95:     end
bsw@953:     slot.put(encode.html(line))
bsw@95:   else
bsw@95:     slot.put("<br />")
bsw@95:   end
bsw@95: end
bsw@95: 
bsw@1045: ui.section( function()
bsw@1045:   ui.sectionHead( function()
bsw@1045:     ui.link{
bsw@1045:       module = "initiative", view = "show", id = initiative.id,
bsw@1045:       content = function ()
bsw@1045:         ui.heading { 
bsw@1045:           level = 1,
bsw@1045:           content = initiative.display_name
bsw@1045:         }
bsw@1045:       end
bsw@1045:     }
bsw@1045:     ui.heading{ level = 2, content = _("Comparision of revisions #{id1} and #{id2}", {
bsw@1045:       id1 = old_draft.id,
bsw@1045:       id2 = new_draft.id 
bsw@1045:     } ) }
bsw@1045:   end )
bsw@1045: 
bsw@1045:   if app.session.member_id and not new_draft.initiative.revoked then
bsw@1045:     local supporter = app.session.member:get_reference_selector("supporters")
bsw@1045:       :add_where{ "initiative_id = ?", new_draft.initiative_id }
bsw@1045:       :optional_object_mode()
bsw@1045:       :exec()
bsw@1045:     if supporter and supporter.draft_id ~= new_draft.id then
bsw@1045:       ui.sectionRow("draft_updated_info", function()
bsw@1045:         ui.container{ 
bsw@1045:           attr = { class = "info" },
bsw@1045:           content = _"The draft of this initiative has been updated!"
bsw@1045:         }
bsw@1045:         slot.put(" ")
bsw@1045:         ui.link{
bsw@1045:           text   = _"refresh my support",
bsw@1045:           module = "initiative",
bsw@1045:           action = "add_support",
bsw@1045:           id     = new_draft.initiative.id,
bsw@1045:           params = { draft_id = new_draft.id },
bsw@1045:           routing = {
bsw@1045:             default = {
bsw@1045:               mode = "redirect",
bsw@1045:               module = "initiative",
bsw@1045:               view = "show",
bsw@1045:               id = new_draft.initiative.id
bsw@1045:             }
bsw@1045:           }
bsw@1045:         }
bsw@1045: 
bsw@1045:         slot.put(" &middot; ")
bsw@1045:          
bsw@1045:         ui.link{
bsw@1045:           text   = _"remove my support",
bsw@1045:           module = "initiative",
bsw@1045:           action = "remove_support",
bsw@1045:           id     = new_draft.initiative.id,
bsw@1045:           routing = {
bsw@1045:             default = {
bsw@1045:               mode = "redirect",
bsw@1045:               module = "initiative",
bsw@1045:               view = "show",
bsw@1045:               id = new_draft.initiative.id
bsw@1045:             }
bsw@1045:           }
bsw@1045:         }        
bsw@1045:         
bsw@1045:       end )
bsw@2:     end
bsw@1045:   end
bsw@1045: 
bsw@1045:   ui.sectionRow( function()
bsw@2: 
bsw@1045:     if not status then
bsw@1045:       ui.field.text{ value = _"The drafts do not differ" }
bsw@1045:     else
bsw@1045:       ui.container{
bsw@1045:         tag = "div",
bsw@1045:         attr = { class = "diff" },
bsw@1045:         content = function()
bsw@1045:           output = output:gsub("[^\n\r]+", function(line)
bsw@1045:             process_line(line)
bsw@1045:           end)
bsw@1045:         end
bsw@1045:       }
bsw@1045:     end 
bsw@1045: 
bsw@1045:   end )
jbe@1226: end )