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module trial.reporters.html;

import std.stdio;
import std.array;
import std.conv;
import std.datetime;
import std.string;
import std.algorithm;
import std.file;
import std.path;

import trial.interfaces;
import trial.reporters.writer;


class HtmlReporter : ILifecycleListener
{
  private
  {
    bool success = true;
    immutable string destination;
    immutable long warningTestDuration;
    immutable long dangerTestDuration;
  }

  this(string destination, long warningTestDuration, long dangerTestDuration)
  {
    this.destination = destination;
    this.warningTestDuration = warningTestDuration;
    this.dangerTestDuration = dangerTestDuration;
  }

  void begin(ulong)
  {
  }

  void update()
  {
  }

  private {
    void relativePaths(ref SuiteResult[] results) {
      foreach(ref result; results) {
        relativePaths(result);
      }
    }

    void relativePaths(ref SuiteResult suite) {
      relativePaths(suite.attachments);

      foreach(ref result; suite.tests) {
        relativePaths(result);
      }
    }

    void relativePaths(ref TestResult step) {
      relativePaths(step.attachments);

      foreach(ref child; step.steps) {
        relativePaths(child);
      }
    }

    void relativePaths(ref StepResult step) {
      relativePaths(step.attachments);

      foreach(ref child; step.steps) {
        relativePaths(child);
      }
    }

    void relativePaths(ref Attachment[] attachments) {
      foreach(ref attachment; attachments) {
        attachment.file = asRelativePath(attachment.file, destination.dirName).array;
      }
    }
  }

  void end(SuiteResult[] results)
  {
    relativePaths(results);

    immutable string trialCss = import("assets/trial.css");
    immutable string trialJs = import("assets/trial.js");

    string content = import("templates/htmlReporter.html");

    auto assets = buildPath(destination.dirName, "assets");

    if(!destination.dirName.exists) {
      mkdirRecurse(destination.dirName);
    }

    if(!assets.exists) {
      mkdirRecurse(assets);
    }

    content = content
      .replace("{testResult}", "[" ~ results.map!(a => a.toString).join(",") ~ "]")
      .replace("{warningTestDuration}", warningTestDuration.to!string)
      .replace("{dangerTestDuration}", dangerTestDuration.to!string);


    std.file.write(destination, content);

    std.file.write(buildPath(assets, "trial.css"), trialCss);
    std.file.write(buildPath(assets, "trial.js"), trialJs);
  }
}