Initial commit.

.editorconfig

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+# This file is for unifying the coding style for different editors and IDEs
+# editorconfig.org
+
+# WordPress Coding Standards
+# https://make.wordpress.org/core/handbook/coding-standards/
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = tab
+
+[{.jshintrc,*.json,*.yml}]
+indent_style = space
+indent_size = 2
+
+[{*.txt,wp-config-sample.php}]
+end_of_line = crlf

.gitignore

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+.idea/
+vendor

assets/css/stats.css

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+table {
+	margin-left: 0;
+	margin-top: 8em;
+	width: 100%;
+}
+
+table td {
+	padding: 1em;
+}
+
+.visualize {
+	margin-left: 0;
+	margin-top: 2em;
+}
+
+div.executive-summary {
+	margin-top: 2em;
+	padding: 1em;
+	font-size: 13px;
+	border: 1px dashed #ccc;
+}
+
+div.executive-summary p {
+	line-height: .5em;
+}

assets/js/graphs.js

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+jQuery(function ($) {
+
+	var myPalette =  ['#B30000','#3300CC','#B3B300','#59B300','#B30059','#F00000','#FF2E2E','#00B300','#B300B3','#2EFFFF','#AFE495','#00B359','#FF66A3','#0000B3','#0059B3','#00B3B3'];
+
+	$('table.pie-chart').visualize({
+		type: 'pie',
+		pieMargin: 10,
+		width: '350',
+		height: '350',
+		colors: myPalette
+	});
+
+
+	$('table.line-chart').visualize({
+		type: 'line',
+		width: '600',
+		colors: myPalette
+	});
+
+
+	$('table.area-chart').visualize({
+		type: 'area',
+		width: '600',
+		colors: myPalette
+	});
+
+
+	$('table.bar-chart').visualize({
+		type: 'bar',
+		width: '600',
+		colors: myPalette
+	});
+
+});

composer.json

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+{
+    "name": "pressbooks/pressbooks-stats",
+    "version": "1.0.0",
+    "description": "A Pressbooks plugin which provides some basic activity statistics for a Pressbooks network.",
+    "type": "wordpress-plugin",
+    "license": "GPL-2.0+",
+    "homepage": "https://github.com/pressbooks/pressbooks-stats",
+    "authors": [
+      {
+        "name": "Book Oven Inc.",
+        "email": "code@pressbooks.com",
+        "homepage": "https://pressbooks.com"
+      }
+    ],
+    "keywords": [
+      "ebooks publishing webbooks stats statistics metrics"
+    ],
+    "support": {
+      "email": "code@pressbooks.com",
+      "issues": "https://github.com/pressbooks/pressbooks-stats/issues",
+      "docs": "https://github.com/pressbooks/pressbooks-stats/wiki"
+    },
+    "minimum-stability": "dev",
+    "require": {}
+}

includes/pb-helpers.php

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+<?php
+
+namespace PressbooksStats\Helpers;
+
+/**
+ * Simple template system.
+ *
+ * @param string $path
+ * @param array $vars (optional)
+ *
+ * @return string
+ * @throws \Exception
+ */
+function load_template( $path, array $vars = array() ) {
+
+	if ( ! file_exists( $path ) ) {
+		throw new \Exception( "File not found: $path" );
+	}
+
+	ob_start();
+	extract( $vars );
+	include( $path );
+	$output = ob_get_contents();
+	ob_end_clean();
+
+	return $output;
+}
+
+// --------------------------------------------------------------------------------------------------------------------
+// Activation & Deactivation
+// --------------------------------------------------------------------------------------------------------------------
+
+function install() {
+
+	$db_version = '1.4';
+
+	require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
+	$table_name = 'wp_pressbooks_stats_exports';
+	$installed_ver = get_option( 'pb_stats_db_version' );
+
+	if ( $installed_ver != $db_version ) {
+		$sql = "CREATE TABLE {$table_name} (
+               id mediumint(9) NOT NULL AUTO_INCREMENT,
+               blog_id mediumint(9) NOT NULL,
+               time datetime DEFAULT '0000-00-00 00:00:00' NOT NULL,
+               export_type VARCHAR(16) NOT NULL,
+               user_id bigint(20) unsigned DEFAULT 0 NOT NULL,
+               theme VARCHAR(32) NOT NULL,
+               PRIMARY KEY  id (id),
+               KEY `export_theme` (`export_type`,`theme`),
+               KEY `time` (`time`)
+               ); ";
+
+		dbDelta( $sql );
+		update_option( 'pb_stats_db_version', $db_version );
+	}
+
+}