panchangam/index.html at creation · fusionstrings/panchangam · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Panchangam - Vedic Astronomy Terminal</title>
    <script type="importmap">
      {
        "imports": {
          "panchangam": "./lib/panchangam.js"
        }
      }
    </script>
    <style>
      :root {
        --bg-primary: #0a0a0f;
        --bg-secondary: #16161f;
        --accent: #ff9d00;
        --text-primary: #e0e0e0;
        --text-secondary: #a0a0a0;
        --terminal-green: #00ff41;
        --border: #2a2a33;
      }

      body {
        margin: 0;
        padding: 0;
        background-color: var(--bg-primary);
        color: var(--text-primary);
        font-family: "Inter", system-ui, -apple-system, sans-serif;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        min-height: 100vh;
        overflow: hidden;
      }

      .header {
        margin-bottom: 2rem;
        text-align: center;
      }

      .header h1 {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
        background: linear-gradient(45deg, var(--accent), #ff5e00);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
      }

      .header p {
        color: var(--text-secondary);
        font-size: 1.1rem;
      }
    </style>
  </head>
  <body>
    <div class="header">
      <h1>Panchangam Engine</h1>
      <p>High-Precision Vedic Astronomy & Panchangam</p>
    </div>

    <live-terminal id="terminal">
      <template shadowrootmode="open">
        <style>
          :host {
            display: block;
            width: 90vw;
            max-width: 800px;
            height: 500px;
            background: #11111b;
            border: 1px solid #2a2a33;
            border-radius: 12px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            font-family: "JetBrains Mono", "Fira Code", monospace;
            overflow: hidden;
            position: relative;
          }

          .terminal-header {
            background: #1a1a24;
            padding: 10px 15px;
            border-bottom: 1px solid #2a2a33;
            display: flex;
            justify-content: space-between;
            align-items: center;
          }

          .dots {
            display: flex;
            gap: 8px;
          }

          .dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
          }

          .dot.red {
            background: #ff5f56;
          }
          .dot.yellow {
            background: #ffbd2e;
          }
          .dot.green {
            background: #27c93f;
          }

          .terminal-title {
            color: #7c7c8c;
            font-size: 12px;
          }

          #output {
            padding: 20px;
            height: calc(100% - 90px);
            overflow-y: auto;
            color: #d1d1e0;
            font-size: 14px;
            line-height: 1.6;
            scrollbar-width: thin;
            scrollbar-color: #2a2a33 transparent;
          }

          #output::-webkit-scrollbar {
            width: 6px;
          }
          #output::-webkit-scrollbar-thumb {
            background: #2a2a33;
            border-radius: 3px;
          }

          .prompt-line {
            display: flex;
            gap: 10px;
            padding: 5px 20px;
            background: #11111b;
            border-top: 1px solid #2a2a33;
          }

          .prompt-symbol {
            color: #00ff41;
          }

          #input {
            background: transparent;
            border: none;
            color: #fff;
            font-family: inherit;
            font-size: 14px;
            width: 100%;
            outline: none;
          }

          .version-tag {
            color: #ff9d00;
          }

          .cmd-output {
            margin-bottom: 15px;
          }

          .cmd-echo {
            color: #7c7c8c;
            margin-bottom: 5px;
          }
        </style>
        <div class="terminal-header">
          <div class="dots">
            <div class="dot red"></div>
            <div class="dot yellow"></div>
            <div class="dot green"></div>
          </div>
          <div class="terminal-title">panchangam@wasm: ~</div>
          <div></div>
        </div>
        <div id="output">
          <div class="cmd-output">
            Welcome to <span class="version-tag"
            >Panchangam WASM v0.1.0</span><br>
            Precision engine powered by Swiss Ephemeris.<br>
            Type `help` to see available commands.
          </div>
        </div>
        <div class="prompt-line">
          <span class="prompt-symbol">❯</span>
          <input type="text" id="input" autofocus>
        </div>
      </template>
    </live-terminal>

    <script type="module">
      import * as panchangam from "panchangam";

      class LiveTerminal extends HTMLElement {
        constructor() {
          super();
          this.history = [];
        }

        connectedCallback() {
          const root = this.shadowRoot;
          const input = root.getElementById("input");
          const output = root.getElementById("output");

          input.addEventListener("keydown", async (e) => {
            if (e.key === "Enter") {
              const cmd = input.value.trim();
              if (cmd) {
                input.value = "";
                await this.executeCommand(cmd, output);
              }
            }
          });

          // Auto-focus input on click anywhere in terminal
          this.addEventListener("click", () => input.focus());

          // WASM is already initialized in the inline build
          this.appendOutput("✅ WASM Module Initialized", "system");
          this.appendOutput(
            `Engine: Swiss Ephemeris v${panchangam.get_swisseph_version()}`,
            "system",
          );
        }

        appendOutput(text, type = "normal") {
          const output = this.shadowRoot.getElementById("output");
          const div = document.createElement("div");
          div.className = "cmd-output";
          if (type === "system") div.style.color = "#7c7c8c";
          div.innerHTML = text.replace(/\n/g, "<br>");
          output.appendChild(div);
          output.scrollTop = output.scrollHeight;
        }

        async executeCommand(cmd, output) {
          const echo = document.createElement("div");
          echo.className = "cmd-echo";
          echo.textContent = `❯ ${cmd}`;
          output.appendChild(echo);

          try {
            const result = await this.processCommand(cmd);
            this.appendOutput(result);
          } catch (err) {
            this.appendOutput(`❌ Error: ${err.message}`, "error");
          }
        }

        async processCommand(cmd) {
          const [action, ...args] = cmd.split(" ");

          switch (action.toLowerCase()) {
            case "help":
              return `Available commands:
  - version: Show library versions
  - sunrise [lat] [lon]: Calculate sunrise for Ayodhya (default)
  - tithi: Calculate current Tithi
  - clear: Clear terminal`;
            case "version":
              return `Panchangam: ${panchangam.get_version()}
Swiss Ephemeris: ${panchangam.get_swisseph_version()}`;
            case "tithi":
              const jd = 2460331.791065; // Mocking JD for demo
              const tithi = panchangam.calculate_tithi(jd);
              const res =
                `Tithi: ${tithi.name} (${tithi.paksha_name} Paksha)
Completion: ${(tithi.completion * 100).toFixed(1)}%`;
              tithi.free();
              return res;
            case "sunrise":
              const loc = new panchangam.Location(26.7922, 82.1998, 0);
              const sr = panchangam.calculate_sunrise(2024, 1, 22, loc);
              const date = new Date(sr).toLocaleString();
              loc.free();
              return `Sunrise in Ayodhya: ${date}`;
            case "clear":
              this.shadowRoot.getElementById("output").innerHTML = "";
              return "Terminal cleared.";
            default:
              return `Unknown command: ${action}. Type 'help' for assistance.`;
          }
        }
      }

      customElements.define("live-terminal", LiveTerminal);
    </script>
  </body>
</html>