sitestat/source/report/output.d

75 lines
3.0 KiB
D

module report.output;
import std.stdio;
import report.gen : SiteReport;
interface ReportOutputGenerator {
void generate(const(SiteReport[]) reports);
}
/**
* Report output generator that outputs reports as human-readable text, without
* any particular format.
*/
class ReportTextOutputGenerator : ReportOutputGenerator {
void generate(const(SiteReport[]) reports) {
foreach (report; reports) {
writefln!"Report for site %s from %s to %s:"(
report.siteName,
report.period.start.toISOExtString(),
report.period.end.toISOExtString()
);
writefln!" Total sessions: %d"(report.totalSessions);
writefln!" Mean session duration (seconds): %.3f"(report.meanSessionDurationSeconds);
writefln!" Mean events per sesson: %.3f"(report.meanEventsPerSession);
foreach (string userAgent, ulong count; report.userAgents) {
writefln!" User agent: %s"(userAgent);
writefln!" Count: %d"(count);
}
}
}
}
/**
* Report output generator that outputs reports as a JSON array of objects.
*/
class ReportJsonOutputGenerator : ReportOutputGenerator {
import std.json;
void generate(const(SiteReport[]) reports) {
JSONValue jsonArray = JSONValue(string[].init);
foreach (report; reports) {
JSONValue obj = JSONValue(string[string].init);
obj.object["siteName"] = report.siteName;
obj.object["periodStart"] = report.period.start.toISOExtString();
obj.object["periodEnd"] = report.period.end.toISOExtString();
obj.object["totalSessions"] = report.totalSessions;
obj.object["meanSessionDurationSeconds"] = report.meanSessionDurationSeconds;
obj.object["meanEventsPerSession"] = report.meanEventsPerSession;
obj.object["userAgents"] = JSONValue(string[string].init);
foreach (string userAgent, ulong count; report.userAgents) {
obj.object["userAgents"].object[userAgent] = count;
}
jsonArray.array ~= obj;
}
writeln(jsonArray.toPrettyString());
}
}
/**
* Report output generator that generates output as CSV text, grouped by each
* site's name.
*/
class ReportCsvOutputGenerator : ReportOutputGenerator {
void generate(const(SiteReport[]) reports) {
writeln("site, statistic, value"); // Headers.
foreach (report; reports) {
writefln!"%s, periodStart, %s"(report.siteName, report.period.start.toISOExtString());
writefln!"%s, periodEnd, %s"(report.siteName, report.period.end.toISOExtString());
writefln!"%s, totalSessions, %d"(report.siteName, report.totalSessions);
writefln!"%s, meanSessionDurationSeconds, %.3f"(report.siteName, report.meanSessionDurationSeconds);
writefln!"%s, meanEventsPerSession, %.3f"(report.siteName, report.meanEventsPerSession);
}
}
}