const wizardInfrastructureProvisioning = (function(undefined) {

  let pollingInterval;
  let pollingMode;
  const originalIndicatorClass = 'indicator align-center';
  const tabClass = "item tab-ish horizontal space-between";
  let onSectionUpdated = (section) => {};
  let svg = null;
  return {
    id: "infrastructure-provisioning",
    title: strings.title_InfrastructureProvisioning,
    description: "description_InfrastructureProvisioning",
    controller: (file, path, element, state, setState) => {
  
      if(!state) {
        setState({build: 'latest'});
        return;
      }
  
      const sections = [{
        url: "terraform-global",
        icon: "cloud-instance.png",
        name: strings.label_GlobalTerraformProject
      }];
  
      file.servers.filter(x => file['server-status'][x.id])
        .forEach(x => {
          sections.push({
            url: `terraform-local-${x.id}`,
            icon: x.icon,
            name: strings.label_NodeTerraformProject(x.id)
          });
          sections.push({
            url: `docker-compose-${x.id}`,
            icon: x.icon,
            name: strings.label_NodeDockerCompose(x.id)
          });
        });
  
      const waiting = document.getElementById('infrastructure-display-waiting');
      const display = document.getElementById('infrastructure-display');
      const previousBuilds = document.getElementById('infrastructure-provisioning-previous-builds');
      const previousBuildsContainer = document.getElementById('infrastructure-provisioning-previous-builds-container');
      const sectionsContainer = element.querySelector(".infrastructure-provisioning-list");
      while(sectionsContainer.hasChildNodes()) {
        sectionsContainer.removeChild(sectionsContainer.lastChild);
      }
  
      sections.forEach(section => {
        const sectionDiv = document.createElement("div");
        sectionDiv.className = `${tabClass} not-clickable`;
        const sectionGroup = document.createElement("div");
        sectionGroup.className = "horizontal";
        const sectionIcon = document.createElement("img");
        sectionIcon.className = "inline icon";
        sectionIcon.src = `images/${section.icon}`;
        const sectionTitle = document.createElement("span");
        sectionTitle.className = "bold";
        sectionTitle.textContent = section.name;
        sectionGroup.appendChild(sectionIcon);
        sectionGroup.appendChild(sectionTitle);
        const indicatorContainer = document.createElement("div");
        indicatorContainer.className = "horizontal align-center";
        const indicator = document.createElement("div");
        indicator.className = originalIndicatorClass;
        const indicatorLight = document.createElement("span");
        const indicatorText = document.createElement("span");
        indicatorText.textContent = strings.description_IndicatorUnknown;
        indicatorLight.className = "indicator-light";
        indicatorText.className = "indicator-text";
  
  
        indicator.appendChild(indicatorLight);
        indicator.appendChild(indicatorText);
        indicatorContainer.appendChild(indicator);
        sectionDiv.appendChild(sectionGroup);
        sectionDiv.appendChild(indicator);
        sectionsContainer.appendChild(sectionDiv);
  
        section.div = sectionDiv;
        section.indicator = indicator;
      });
      
      const setIndicator = (status, indicator, indicatorText) => {
        const isError = status.Error || (status.Complete && !status.Success);
        const colorClass = isError ? 'error' : 'ok';
        const className = `${originalIndicatorClass} ${status.Complete ? '' : 'in-progress'} ${colorClass}`;
        indicator.className = className;
        const completeContent = isError ? strings.description_IndicatorError : strings.description_IndicatorOk;
        const statusWord = status.Complete ? completeContent : strings.description_IndicatorInProgress;
        
        const resources = Object.values(status.Status.Modules).flatMap(x => x.Resources);
        const totalPlanned = resources.filter(x => x.Plan && x.Plan != "none").length;
        const totalCompleted = resources.filter(
          x => (x.Plan && x.Plan != "none") && (x.State == "ok" || x.State == "destroyed")
        ).length;

        indicatorText.textContent = `${statusWord} (${totalCompleted}/${totalPlanned})`;
      };

      const openModal = (section) => {
        let selectedTab = 'diagram';
        modalService.open(
          section.name,
          `
          <div class="item-header horizontal align-center">
            <div class="item tab-ish not-clickable">
              <div class="horizontal align-center">
                <img class="inline icon" src="images/${section.icon}"/>
                &nbsp;
                &nbsp;
                <div class="horizontal align-center">
                  <div class="indicator align-center">
                    <span class="indicator-light"></span>
                    <span class="indicator-text">${strings.description_IndicatorNotStarted}</span>
                  </div>
                </div>
              </div>
            </div>
      
            <div class="flex-grow"></div>
      
            <div class="item tab" data-value="diagram">
              <span class="bold">${strings.label_Diagram}</span>
            </div>
            <div class="item tab" data-value="log">
              <span class="bold">${strings.label_Log}</span>
            </div>
          </div>
          <div class="item-detail">
            <div id="infrastructure-diagram" class="embedded-content"></div>
            <div id="infrastructure-log" class="embedded-content log-content display-none"></div>
          </div>
          `,
          (resolve, reject) => {
            let status = section.statusObject;
            const element = document.getElementById("modal-body");
            const diagram = document.getElementById('infrastructure-diagram');
            const log = document.getElementById('infrastructure-log');
            const indicator = element.querySelector(".indicator");
            const indicatorText = indicator.querySelector(".indicator-text");

            document.getElementById('modal-container').className = "modal container dark";
            
            const doTabStuff = () => {
              Array.from(element.querySelectorAll(".item.tab")).forEach((x, i) => {
                if(x.dataset.value == selectedTab) {
                  x.classList.add("detail-selected")
                } else {
                  x.classList.remove("detail-selected")
                }
                x.onclick = () => {
                  selectedTab = x.dataset.value;
                  doTabStuff();
                }
              });
          
              diagram.style.display = selectedTab == "diagram" ? "block" : "none";
              log.style.display = selectedTab == "log" ? "block" : "none";
            };

            element.querySelector('.item-detail').style.display = 'block';

            doTabStuff();

            // when the modal loads, set up & correctly size the diagram svg
            diagram.innerHTML = section.sanitizedSvgText;

            svg = document.querySelector('#infrastructure-diagram svg');

            const width = Number(svg.getAttribute('width').replace(/[a-z]+/, ''));
            const height = Number(svg.getAttribute('height').replace(/[a-z]+/, ''));
            const aspect = width/height;
  
            const infraComputedStyle = window.getComputedStyle(diagram);
  
            const cssMaxWidthPx = Number(infraComputedStyle.maxWidth.replace('px', ''));
            const cssHeightPx = Number(infraComputedStyle.height.replace('px', ''));
            if (cssMaxWidthPx == NaN) {
              throw new Error("unable to calculate cssMaxWidthPx: got NaN")
            }
            if (cssMaxWidthPx == NaN) {
              throw new Error("unable to calculate cssHeightPx: got NaN")
            }
  
            if(width > cssMaxWidthPx) {
              svg.setAttribute('width', `${cssMaxWidthPx}px`);
              svg.setAttribute('height', `${cssMaxWidthPx/aspect}px`);
            } else {
              svg.setAttribute('width', `${width}px`);
              svg.setAttribute('height', `${height}px`);
              svg.style.margin = `${(cssHeightPx-height)/2}px  ${(cssMaxWidthPx-width)/2}px `;
            }


            onSectionUpdated = (otherSection) => {
              // only update the modal when the current (open modal) section is updated
              if(otherSection.url != section.url) {
                return;
              }
              status = otherSection.statusObject;

              setIndicator(status, indicator, indicatorText);

              // STEP 1: html-ize the ansi-colored log file and insert it into the page
              const htmlWithInlineStyles = new AnsiToHtml().toHtml(status.Log);

              // This is a silly hack to get around the Content Security Policy not allowing inline CSS
              // first we replace all the inline styles with ids and record the value of the inline style for that id
              const stylesToApply = [];
              const htmlWithIds = htmlWithInlineStyles.replace(
               /style="[^"]+"/g, 
               (style) => {
                 toReturn = `id="ansicolor-${stylesToApply.length}"`;
                 stylesToApply.push(style);
                 return toReturn;
               }
              );

              // now we can load it into the page because all the inline styles have been replaced.
              log.innerHTML = DOMPurify.sanitize(htmlWithIds);

              // finally, we go back through and re-apply the colors that we recorded by id.
              stylesToApply.forEach((style, i) => {
               const colorMatch = style.match(/color\s?:\s*(#[A-Fa-f0-9]+)/);
               if(colorMatch) {
                 document.getElementById(`ansicolor-${i}`).style.color = colorMatch[1];
               }
              });

              // STEP 2: update the css classes on the svg based on the terraform apply status to animate it. 
              const moduleAllResourcesOk = {};
              Object.entries(status.Status.Modules).forEach(([moduleName, module]) => {
               const moduleElement = svg.querySelector(`[data-dot=${moduleName.replace(/[.-]/g, "_")}]`);

               let allResourcesOk = true;
               module.Resources.forEach(resource => {
                 if(resource.State != "ok" && resource.ResourceType != "") {
                   allResourcesOk = false;
                 }

                 const dotAddress = `${moduleName}_${resource.DisplayName}`.replace(/[.-]/g, "_");
                 const element = svg.querySelector(`[data-dot=${dotAddress}]`);
                 if(element) {
                   element.setAttribute("class", `resource ${resource.State}`);
                   //console.log(dotAddress, resource.Plan, resource.State);
                 }
               });

               if (moduleElement) {
                 moduleElement.setAttribute("class", `module ${allResourcesOk ? "" : "waiting"}`);
               }

               moduleAllResourcesOk[moduleName] = allResourcesOk;
             });
 
             status.Status.Connections.forEach(connection => {
               const paramDot = `param_${connection.DisplayName.replace(/[.-]/g, "_")}`;
               const fromDot = connection.From.replace(/[.-]/g, "_");
               const toDot = connection.To.replace(/[.-]/g, "_");
               const param = svg.querySelector(`[data-dot="${paramDot}"]`);
               const from = svg.querySelector(`[data-dot="${fromDot}->${paramDot}"]`);
               const to = svg.querySelector(`[data-dot="${paramDot}->${toDot}"]`);
 
               const elements = [param, from, to];
               elements.forEach(el => {
                 if(el) {
                   if(moduleAllResourcesOk[connection.From] || connection.From.startsWith("var")  || connection.From.startsWith("data")) {
                     el.classList.remove("waiting");
                   } else {
                     el.classList.add("waiting");
                   }
                 }
               });
               
             });

            };

            onSectionUpdated(section);

          },
          [{
            innerHTML: strings.button_Back,
            escapeKey: true,
            onclick: (resolve, reject) => resolve()
          }]
        )
      };
  
      const poll = () => {
        const objList = pollingMode ? invokeObjectStorageListPolling : invokeObjectStorageList;
        const objGet = pollingMode ? invokeObjectStorageGetPolling : invokeObjectStorageGet;
  
        objList(`rootsystem/automation/`).then(results => {
          const buildDirectories = results.filter(x => x.isDirectory && Number(x.name) != NaN);
          if(buildDirectories.length == 0) {
            return;
          }
          previousBuildsContainer.style.display = buildDirectories.length > 1 ? 'block' : 'none';

          let currentBuildDirectoryIndex = buildDirectories.length - 1;
          if(state.build != 'latest') {
            buildDirectories.forEach((x, i) => {
              if(Number(x.name) == state.build) {
                currentBuildDirectoryIndex = i;
              }
            });
          }
  
          sections.forEach(section => {

            const indicatorText = section.indicator.querySelector('.indicator-text');
            const buildNumber = buildDirectories[currentBuildDirectoryIndex].name;
            const url = `rootsystem/automation/${buildNumber}/${section.url}`;
  
            if(!section.diagramSvgText) {
              objGet(`${url}/diagram.svg`).then(
                (svgResult) => {
                  if(!svgResult.notFound) {
                    section.div.className = tabClass;
                    section.div.onclick = () => openModal(section);
                    section.sanitizedSvgText = DOMPurify.sanitize(svgResult.file.content);
                  }
                }
              );
            }
  
            objGet(`${url}/status.json`).then(
              (statusResult) => {
                if(statusResult.notFound) {
                  section.indicator.className = originalIndicatorClass;
                  indicatorText.textContent = strings.description_IndicatorNotStarted;
                  return
                }
                const status = JSON.parse(statusResult.file.content);
                section.statusObject = status;
                //if(section.url.includes('docker')) { console.log(status); }
                console.log("asd");
                onSectionUpdated(section);
                setIndicator(status, section.indicator, indicatorText);
                
              }
            );
  
          });
          
                  
          const listBuildDirectories = buildDirectories.map(x => {
            return objList(`rootsystem/automation/${x.name}/terraform-global/`);
          });
  
          Promise.all(listBuildDirectories).then(buildDirsContents => {
  
            while(previousBuilds.hasChildNodes()) {
              previousBuilds.removeChild(previousBuilds.lastChild);
            }
            const latestOption = document.createElement('option');
            latestOption.value = "latest";
  
            const latestBuildDirContents = buildDirsContents[buildDirsContents.length-1];
            const latestBuildDir = buildDirectories[buildDirectories.length-1];
            const lastModified = latestBuildDirContents.filter(y => !y.isDirectory)[0].lastModified;
            latestOption.textContent = `latest (#${latestBuildDir.name} - ${new Date(lastModified).toLocaleString()})`;
            latestOption.selected = state.build == 'latest';
  
            buildDirectories.forEach((directory, i) => {
              const option = document.createElement('option');
              option.value = Number(directory.name);
              const lastModified = buildDirsContents[i].filter(y => !y.isDirectory)[0].lastModified;
              option.textContent = `#${directory.name} - ${new Date(lastModified).toLocaleString()}`;
              option.selected = state.build == option.value;
              previousBuilds.prepend(option);
            });

            previousBuilds.prepend(latestOption);
  
            pollingMode = true;
            display.style.display = 'block';
            waiting.style.display = 'none';
          });
        });
    
        
      };
  
      const resetDisplayAndClearInterval = () => {
        waiting.style.display = 'block';
        display.style.display = 'none';
        sections.forEach(section => {
          if(section.indicator) {
            section.indicator.className = originalIndicatorClass;
            section.indicator.querySelector('.indicator-text').textContent = strings.description_IndicatorUnknown;
          }
        });
        clearInterval(pollingInterval);
        pollingInterval = null;
      };
  
      previousBuilds.onchange = () => {
        resetDisplayAndClearInterval();
        setState({
          ...state,
          build: previousBuilds.value
        });
      };
  
      if(!pollingInterval) {
        pollingMode = false;
        pollingInterval = setInterval(() => {
          // clear the interval and exit early if the user navigated away from this screen.
          if(element.style.display != "block") {
            resetDisplayAndClearInterval();
            return;
          }
          
          poll();
        }, 5000);
  
        poll();
      }
      
  
    }
  };
})()