add api implementation

app/assets/stylesheets/application.css

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+/*
+ * This is a manifest file that'll be compiled into application.css.
+ *
+ * With Propshaft, assets are served efficiently without preprocessing steps. You can still include
+ * application-wide styles in this file, but keep in mind that CSS precedence will follow the standard
+ * cascading order, meaning styles declared later in the document or manifest will override earlier ones,
+ * depending on specificity.
+ *
+ * Consider organizing styles into separate files for maintainability.
+ */

app/controllers/application_controller.rb

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+class ApplicationController < ActionController::Base
+  # Only allow modern browsers supporting webp images, web push, badges, import maps, CSS nesting, and CSS :has.
+  allow_browser versions: :modern
+end

app/controllers/dashboard_controller.rb

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+class DashboardController < ApplicationController
+  require 'httparty'
+  require 'csv'
+  require 'prawn'
+
+  def index
+    @filters = fetch_filter_options
+
+    if params[:org_type]
+      @selected = {
+        org_type: params[:org_type],
+        sy: params[:sy],
+        grad_rate_type: params[:grad_rate_type],
+        stu_grp: params[:stu_grp]
+      }
+      @data = fetch_filtered_data(@selected)
+    else
+      @selected = {}
+      @data = []
+    end
+  end
+
+  def download_csv
+    data = fetch_filtered_data(params)
+    csv_string = CSV.generate(headers: true) do |csv|
+      csv << data.first.keys if data.any?
+      data.each { |row| csv << row.values }
+    end
+    send_data csv_string, filename: "graduation_stats.csv"
+  end
+
+  def download_pdf
+    data = fetch_filtered_data(params)
+    pdf = Prawn::Document.new
+    pdf.text "Graduation Stats Report", size: 14, align: :center
+    pdf.move_down 10
+    data.each_with_index do |row, i|
+      pdf.text "#{i+1}. #{row.values.join(", ")}"
+    end
+    send_data pdf.render, filename: "graduation_stats.pdf", type: "application/pdf"
+  end
+
+  private
+
+  def fetch_filter_options
+    response = HTTParty.get("https://educationtocareer.data.mass.gov/resource/n2xa-p822.json?$limit=1000", headers: headers)
+    df = response.parsed_response
+    {
+      org_types: df.map { |x| x["org_type"] }.compact.uniq.sort,
+      school_years: df.map { |x| x["sy"] }.compact.uniq.sort.reverse,
+      rate_types: df.map { |x| x["grad_rate_type"] }.compact.uniq.sort,
+      student_groups: df.map { |x| x["stu_grp"] }.compact.uniq.sort
+    }
+  end
+
+  def fetch_filtered_data(filters)
+    where_clause = URI.encode_www_form_component("org_type='#{filters[:org_type]}' AND sy='#{filters[:sy]}' AND grad_rate_type='#{filters[:grad_rate_type]}' AND stu_grp='#{filters[:stu_grp]}'")
+    url = "https://educationtocareer.data.mass.gov/resource/n2xa-p822.json?$where=#{where_clause}&$limit=50000"
+    response = HTTParty.get(url, headers: headers)
+    df = response.parsed_response
+
+    numeric_cols = %w[cohort_cnt grad_pct in_sch_pct non_grad_pct ged_pct drpout_pct exclud_pct]
+    df.each do |row|
+      numeric_cols.each { |col| row[col] = row[col].to_f if row[col] }
+    end
+
+    name_col, code_col = case filters[:org_type]
+                         when "District" then ["dist_name", "dist_code"]
+                         when "School" then ["org_name", "org_code"]
+                         else ["org_name", "org_code"]
+                         end
+
+    df.map.with_index(1) do |row, idx|
+      {
+        "S. No." => idx,
+        name_col => row[name_col],
+        code_col => row[code_col],
+        "# in Cohort" => row["cohort_cnt"],
+        "% Graduated" => row["grad_pct"],
+        "% Still in School" => row["in_sch_pct"],
+        "% Non-Grad Completers" => row["non_grad_pct"],
+        "% H.S. Equiv." => row["ged_pct"],
+        "% Dropped Out" => row["drpout_pct"],
+        "% Permanently Excluded" => row["exclud_pct"]
+      }
+    end
+  end
+
+  def headers
+    { "X-App-Token" => ENV["SOCRATA_APP_TOKEN"] }
+  end
+end

app/helpers/application_helper.rb

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+module ApplicationHelper
+end

app/helpers/dashboard_helper.rb

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+module DashboardHelper
+end

app/javascript/application.js

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+// Configure your import map in config/importmap.rb. Read more: https://github.com/rails/importmap-rails
+import "@hotwired/turbo-rails"
+import "controllers"

app/javascript/controllers/application.js

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+import { Application } from "@hotwired/stimulus"
+
+const application = Application.start()
+
+// Configure Stimulus development experience
+application.debug = false
+window.Stimulus   = application
+
+export { application }

app/javascript/controllers/hello_controller.js

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+import { Controller } from "@hotwired/stimulus"
+
+export default class extends Controller {
+  connect() {
+    this.element.textContent = "Hello World!"
+  }
+}

app/javascript/controllers/index.js

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+// Import and register all your controllers from the importmap via controllers/**/*_controller
+import { application } from "controllers/application"
+import { eagerLoadControllersFrom } from "@hotwired/stimulus-loading"
+eagerLoadControllersFrom("controllers", application)

app/jobs/application_job.rb

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+class ApplicationJob < ActiveJob::Base
+  # Automatically retry jobs that encountered a deadlock
+  # retry_on ActiveRecord::Deadlocked
+
+  # Most jobs are safe to ignore if the underlying records are no longer available
+  # discard_on ActiveJob::DeserializationError
+end

app/mailers/application_mailer.rb

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+class ApplicationMailer < ActionMailer::Base
+  default from: "from@example.com"
+  layout "mailer"
+end

app/models/application_record.rb

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+class ApplicationRecord < ActiveRecord::Base
+  primary_abstract_class
+end

app/views/dashboard/index.html.erb

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+<%= form_with url: root_path, method: :get, local: true do |f| %>
+    <div>
+      <%= label_tag :org_type, "Report Type" %>
+      <%= select_tag :org_type, options_for_select(@filters[:org_types], @selected[:org_type]) %>
+  
+      <%= label_tag :sy, "School Year" %>
+      <%= select_tag :sy, options_for_select(@filters[:school_years], @selected[:sy]) %>
+  
+      <%= label_tag :grad_rate_type, "Graduation Rate Type" %>
+      <%= select_tag :grad_rate_type, options_for_select(@filters[:rate_types], @selected[:grad_rate_type]) %>
+  
+      <%= label_tag :stu_grp, "Student Group" %>
+      <%= select_tag :stu_grp, options_for_select(@filters[:student_groups], @selected[:stu_grp]) %>
+  
+      <%= submit_tag "Filter" %>
+    </div>
+  <% end %>
+  
+  <% if @data.present? %>
+    <table>
+      <thead>
+        <tr><% @data.first.keys.each do |key| %><th><%= key %></th><% end %></tr>
+      </thead>
+      <tbody>
+        <% @data.each do |row| %>
+          <tr><% row.each { |_, value| %><td><%= value %></td><% } %></tr>
+        <% end %>
+      </tbody>
+    </table>
+  
+    <%= link_to "Download CSV", download_csv_path(request.query_parameters), class: "button" %>
+    <%= link_to "Download PDF", download_pdf_path(request.query_parameters), class: "button" %>
+  <% else %>
+    <% if @selected.present? %>
+      <p>No data found for the selected combination.</p>
+    <% end %>
+  <% end %>
+  

app/views/layouts/application.html.erb

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+<!DOCTYPE html>
+<html>
+  <head>
+    <title><%= content_for(:title) || "Myapp" %></title>
+    <meta name="viewport" content="width=device-width,initial-scale=1">
+    <meta name="apple-mobile-web-app-capable" content="yes">
+    <meta name="mobile-web-app-capable" content="yes">
+    <%= csrf_meta_tags %>
+    <%= csp_meta_tag %>
+
+    <%= yield :head %>
+
+    <%# Enable PWA manifest for installable apps (make sure to enable in config/routes.rb too!) %>
+    <%#= tag.link rel: "manifest", href: pwa_manifest_path(format: :json) %>
+
+    <link rel="icon" href="/icon.png" type="image/png">
+    <link rel="icon" href="/icon.svg" type="image/svg+xml">
+    <link rel="apple-touch-icon" href="/icon.png">
+
+    <%# Includes all stylesheet files in app/assets/stylesheets %>
+    <%= stylesheet_link_tag :app, "data-turbo-track": "reload" %>
+    <%= javascript_importmap_tags %>
+  </head>
+
+  <body>
+    <%= yield %>
+  </body>
+</html>

app/views/layouts/mailer.html.erb

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+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <style>
+      /* Email styles need to be inline */
+    </style>
+  </head>
+
+  <body>
+    <%= yield %>
+  </body>
+</html>

app/views/layouts/mailer.text.erb

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+<%= yield %>

app/views/pwa/manifest.json.erb

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+{
+  "name": "Myapp",
+  "icons": [
+    {
+      "src": "/icon.png",
+      "type": "image/png",
+      "sizes": "512x512"
+    },
+    {
+      "src": "/icon.png",
+      "type": "image/png",
+      "sizes": "512x512",
+      "purpose": "maskable"
+    }
+  ],
+  "start_url": "/",
+  "display": "standalone",
+  "scope": "/",
+  "description": "Myapp.",
+  "theme_color": "red",
+  "background_color": "red"
+}

app/views/pwa/service-worker.js

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+// Add a service worker for processing Web Push notifications:
+//
+// self.addEventListener("push", async (event) => {
+//   const { title, options } = await event.data.json()
+//   event.waitUntil(self.registration.showNotification(title, options))
+// })
+//
+// self.addEventListener("notificationclick", function(event) {
+//   event.notification.close()
+//   event.waitUntil(
+//     clients.matchAll({ type: "window" }).then((clientList) => {
+//       for (let i = 0; i < clientList.length; i++) {
+//         let client = clientList[i]
+//         let clientPath = (new URL(client.url)).pathname
+//
+//         if (clientPath == event.notification.data.path && "focus" in client) {
+//           return client.focus()
+//         }
+//       }
+//
+//       if (clients.openWindow) {
+//         return clients.openWindow(event.notification.data.path)
+//       }
+//     })
+//   )
+// })