class Dashboard

final class Dashboard extends Renderer {
    public function render(DirectoryNode $node, string $file) : void {
        $classes = $node->classesAndTraits();
        $templateName = $this->templatePath . ($this->hasBranchCoverage ? 'dashboard_branch.html' : 'dashboard.html');
        $template = new Template($templateName, '{{', '}}');
        $this->setCommonTemplateVariables($template, $node);
        $baseLink = $node->id() . '/';
        $complexity = $this->complexity($classes, $baseLink);
        $coverageDistribution = $this->coverageDistribution($classes);
        $insufficientCoverage = $this->insufficientCoverage($classes, $baseLink);
        $projectRisks = $this->projectRisks($classes, $baseLink);
        $template->setVar([
            'insufficient_coverage_classes' => $insufficientCoverage['class'],
            'insufficient_coverage_methods' => $insufficientCoverage['method'],
            'project_risks_classes' => $projectRisks['class'],
            'project_risks_methods' => $projectRisks['method'],
            'complexity_class' => $complexity['class'],
            'complexity_method' => $complexity['method'],
            'class_coverage_distribution' => $coverageDistribution['class'],
            'method_coverage_distribution' => $coverageDistribution['method'],
        ]);
        try {
            $template->renderTo($file);
        } catch (Exception $e) {
            throw new FileCouldNotBeWrittenException($e->getMessage(), $e->getCode(), $e);
        }
    }
    protected function activeBreadcrumb(AbstractNode $node) : string {
        return sprintf('         <li class="breadcrumb-item"><a href="index.html">%s</a></li>' . "\n" . '         <li class="breadcrumb-item active">(Dashboard)</li>' . "\n", $node->name());
    }
    
    /**
     * Returns the data for the Class/Method Complexity charts.
     */
    private function complexity(array $classes, string $baseLink) : array {
        $result = [
            'class' => [],
            'method' => [],
        ];
        foreach ($classes as $className => $class) {
            foreach ($class['methods'] as $methodName => $method) {
                if ($className !== '*') {
                    $methodName = $className . '::' . $methodName;
                }
                $result['method'][] = [
                    $method['coverage'],
                    $method['ccn'],
                    sprintf('<a href="%s">%s</a>', str_replace($baseLink, '', $method['link']), $methodName),
                ];
            }
            $result['class'][] = [
                $class['coverage'],
                $class['ccn'],
                sprintf('<a href="%s">%s</a>', str_replace($baseLink, '', $class['link']), $className),
            ];
        }
        return [
            'class' => json_encode($result['class']),
            'method' => json_encode($result['method']),
        ];
    }
    
    /**
     * Returns the data for the Class / Method Coverage Distribution chart.
     */
    private function coverageDistribution(array $classes) : array {
        $result = [
            'class' => [
                '0%' => 0,
                '0-10%' => 0,
                '10-20%' => 0,
                '20-30%' => 0,
                '30-40%' => 0,
                '40-50%' => 0,
                '50-60%' => 0,
                '60-70%' => 0,
                '70-80%' => 0,
                '80-90%' => 0,
                '90-100%' => 0,
                '100%' => 0,
            ],
            'method' => [
                '0%' => 0,
                '0-10%' => 0,
                '10-20%' => 0,
                '20-30%' => 0,
                '30-40%' => 0,
                '40-50%' => 0,
                '50-60%' => 0,
                '60-70%' => 0,
                '70-80%' => 0,
                '80-90%' => 0,
                '90-100%' => 0,
                '100%' => 0,
            ],
        ];
        foreach ($classes as $class) {
            foreach ($class['methods'] as $methodName => $method) {
                if ($method['coverage'] === 0) {
                    $result['method']['0%']++;
                }
                elseif ($method['coverage'] === 100) {
                    $result['method']['100%']++;
                }
                else {
                    $key = floor($method['coverage'] / 10) * 10;
                    $key = $key . '-' . ($key + 10) . '%';
                    $result['method'][$key]++;
                }
            }
            if ($class['coverage'] === 0) {
                $result['class']['0%']++;
            }
            elseif ($class['coverage'] === 100) {
                $result['class']['100%']++;
            }
            else {
                $key = floor($class['coverage'] / 10) * 10;
                $key = $key . '-' . ($key + 10) . '%';
                $result['class'][$key]++;
            }
        }
        return [
            'class' => json_encode(array_values($result['class'])),
            'method' => json_encode(array_values($result['method'])),
        ];
    }
    
    /**
     * Returns the classes / methods with insufficient coverage.
     */
    private function insufficientCoverage(array $classes, string $baseLink) : array {
        $leastTestedClasses = [];
        $leastTestedMethods = [];
        $result = [
            'class' => '',
            'method' => '',
        ];
        foreach ($classes as $className => $class) {
            foreach ($class['methods'] as $methodName => $method) {
                if ($method['coverage'] < $this->thresholds
                    ->highLowerBound()) {
                    $key = $methodName;
                    if ($className !== '*') {
                        $key = $className . '::' . $methodName;
                    }
                    $leastTestedMethods[$key] = $method['coverage'];
                }
            }
            if ($class['coverage'] < $this->thresholds
                ->highLowerBound()) {
                $leastTestedClasses[$className] = $class['coverage'];
            }
        }
        asort($leastTestedClasses);
        asort($leastTestedMethods);
        foreach ($leastTestedClasses as $className => $coverage) {
            $result['class'] .= sprintf('       <tr><td><a href="%s">%s</a></td><td class="text-right">%d%%</td></tr>' . "\n", str_replace($baseLink, '', $classes[$className]['link']), $className, $coverage);
        }
        foreach ($leastTestedMethods as $methodName => $coverage) {
            [
                $class,
                $method,
            ] = explode('::', $methodName);
            $result['method'] .= sprintf('       <tr><td><a href="%s"><abbr title="%s">%s</abbr></a></td><td class="text-right">%d%%</td></tr>' . "\n", str_replace($baseLink, '', $classes[$class]['methods'][$method]['link']), $methodName, $method, $coverage);
        }
        return $result;
    }
    
    /**
     * Returns the project risks according to the CRAP index.
     */
    private function projectRisks(array $classes, string $baseLink) : array {
        $classRisks = [];
        $methodRisks = [];
        $result = [
            'class' => '',
            'method' => '',
        ];
        foreach ($classes as $className => $class) {
            foreach ($class['methods'] as $methodName => $method) {
                if ($method['coverage'] < $this->thresholds
                    ->highLowerBound() && $method['ccn'] > 1) {
                    $key = $methodName;
                    if ($className !== '*') {
                        $key = $className . '::' . $methodName;
                    }
                    $methodRisks[$key] = $method['crap'];
                }
            }
            if ($class['coverage'] < $this->thresholds
                ->highLowerBound() && $class['ccn'] > count($class['methods'])) {
                $classRisks[$className] = $class['crap'];
            }
        }
        arsort($classRisks);
        arsort($methodRisks);
        foreach ($classRisks as $className => $crap) {
            $result['class'] .= sprintf('       <tr><td><a href="%s">%s</a></td><td class="text-right">%d</td></tr>' . "\n", str_replace($baseLink, '', $classes[$className]['link']), $className, $crap);
        }
        foreach ($methodRisks as $methodName => $crap) {
            [
                $class,
                $method,
            ] = explode('::', $methodName);
            $result['method'] .= sprintf('       <tr><td><a href="%s"><abbr title="%s">%s</abbr></a></td><td class="text-right">%d</td></tr>' . "\n", str_replace($baseLink, '', $classes[$class]['methods'][$method]['link']), $methodName, $method, $crap);
        }
        return $result;
    }

}