jacoco_common.gradle

def printDetails(reports) {
    println "xml report: file://${reports.xml.outputLocation.getLocationOnly().get()}"
    println "html report: file://${reports.html.getEntryPoint()}"
}

ext.printReport = { module, reports ->
    printDetails(reports)
    def result = printTotalCoverageFromXml(module, reports.xml.outputLocation.getAsFile().get())
    println result
    return result
}

// prints total coverage to console
ext.printTotalCoverageFromXml = { String module, File jacocoTestReport ->
    if (!jacocoTestReport.exists()) {
        return new CoverageModuleItem(module : module)
    }

    def coverageType = 'LINE'
    def slurper = new XmlSlurper()
    slurper.setFeature('http://apache.org/xml/features/disallow-doctype-decl', false)
    slurper.setFeature('http://apache.org/xml/features/nonvalidating/load-external-dtd', false)

    def report = slurper.parse(jacocoTestReport)
    Long missed = report.counter.find { it.'@type' == coverageType }.@missed.toLong()
    Long covered = report.counter.find { it.'@type' == coverageType }.@covered.toLong()
    if (missed == null || covered == null) return new CoverageModuleItem(module, null, null, null)
    long total = missed + covered
    double coverage = (100 / (total.doubleValue()) * covered).round(2)
    def result = new CoverageModuleItem(module, covered, total, coverage)
    return result
}

ext {
    isTestableAndroid = { project ->
        return project.plugins.hasPlugin("com.android.library")
    }
    isTestableJava = { project ->
        return project.plugins.hasPlugin("java") || project.plugins.hasPlugin("kotlin") &&
                !testableAndroid(project) && !project.plugins.hasPlugin("com.android.application")
    }
}

class CoverageModuleItem {
    public String module = null
    public Long covered = 0
    public Long total = 0
    public Double coverage = 0.0
    CoverageModuleItem(){}

    CoverageModuleItem(String module, Long covered, Long total, Double coverage){
        this.module = module
        this.covered = covered
        this.total = total
        this.coverage = coverage
    }

    @Override
    String toString() {
        if(covered == null)
            return "|$module|N/A|N/A|"
        return "|$module|${covered}/${total}|${coverage}%|"
    }

    String toJson(){
        return "{\"covered_lines\": ${covered}, \"name\": \"${module}\", \"total_lines\": ${total} }"
    }
}