/**
 * Field Console
 *
 * MVP-0: First Field Upload
 *
 * Four views:
 * 1. Upload — phone, video, image, GPS
 * 2. Queue — mission status
 * 3. Artifact Viewer — original, metadata, knowledge, history
 * 4. Processing Timeline — step-by-step progress
 */

import { useState, useEffect } from 'react';

interface Mission {
  id: string;
  status: string;
  progress: number;
  createdAt: string;
  steps: {
    uploaded: boolean;
    archived: boolean;
    metadataExtracted: boolean;
    knowledgeExtracted: boolean;
    decisionReady: boolean;
  };
}

function FieldConsole() {
  const [activeTab, setActiveTab] = useState<'upload' | 'queue' | 'viewer' | 'timeline'>('upload');
  const [missions, setMissions] = useState<Mission[]>([]);

  useEffect(() => {
    fetch('/api/v1/missions')
      .then(r => r.json())
      .then(data => setMissions(data));
  }, []);

  return (
    <div>
      <h2>Field Console</h2>

      {/* Tabs */}
      <div style={{ display: 'flex', gap: 8, marginBottom: 20, borderBottom: '2px solid #333' }}>
        {(['upload', 'queue', 'viewer', 'timeline'] as const).map(tab => (
          <button
            key={tab}
            onClick={() => setActiveTab(tab)}
            style={{
              padding: '8px 16px',
              background: activeTab === tab ? '#333' : 'transparent',
              color: activeTab === tab ? 'white' : '#333',
              border: 'none',
              cursor: 'pointer',
              textTransform: 'capitalize',
            }}
          >
            {tab}
          </button>
        ))}
      </div>

      {/* Content */}
      {activeTab === 'upload' && <UploadView />}
      {activeTab === 'queue' && <QueueView missions={missions} />}
      {activeTab === 'viewer' && <ArtifactViewerView missions={missions} />}
      {activeTab === 'timeline' && <TimelineView missions={missions} />}
    </div>
  );
}

// 1. Upload View
function UploadView() {
  return (
    <div>
      <h3>Upload</h3>
      <div style={{ display: 'grid', gap: 16, maxWidth: 400 }}>
        <UploadCard icon="📱" label="Phone" />
        <UploadCard icon="🎥" label="Video" />
        <UploadCard icon="📷" label="Image" />
        <UploadCard icon="📍" label="GPS" />
        <button style={{
          padding: '16px 24px',
          background: '#1e90ff',
          color: 'white',
          border: 'none',
          borderRadius: 8,
          fontSize: 18,
          cursor: 'pointer',
        }}>
          Import
        </button>
      </div>
    </div>
  );
}

function UploadCard({ icon, label }: { icon: string; label: string }) {
  return (
    <div style={{
      border: '2px dashed #ccc',
      padding: 24,
      borderRadius: 8,
      textAlign: 'center',
      cursor: 'pointer',
    }}>
      <span style={{ fontSize: 32 }}>{icon}</span>
      <p style={{ margin: '8px 0 0', color: '#666' }}>{label}</p>
    </div>
  );
}

// 2. Queue View
function QueueView({ missions }: { missions: Mission[] }) {
  return (
    <div>
      <h3>Queue</h3>
      {missions.map(mission => (
        <div key={mission.id} style={{ border: '1px solid #ccc', padding: 16, borderRadius: 8, marginBottom: 12 }}>
          <div style={{ display: 'flex', justifyContent: 'space-between', marginBottom: 8 }}>
            <strong>{mission.id}</strong>
            <span style={{ color: '#666' }}>{mission.status}</span>
          </div>
          <ProgressBar progress={mission.progress} />
          <div style={{ display: 'grid', gridTemplateColumns: '1fr 1fr', gap: 8, marginTop: 8, fontSize: 12 }}>
            <StatusBadge label="Uploading" done={mission.steps.uploaded} />
            <StatusBadge label="Metadata" done={mission.steps.metadataExtracted} />
            <StatusBadge label="Knowledge" done={mission.steps.knowledgeExtracted} />
            <StatusBadge label="Decision" done={mission.steps.decisionReady} />
          </div>
        </div>
      ))}
    </div>
  );
}

function ProgressBar({ progress }: { progress: number }) {
  return (
    <div style={{ height: 8, background: '#f0f0f0', borderRadius: 4, overflow: 'hidden' }}>
      <div style={{
        width: `${progress}%`,
        height: '100%',
        background: '#1e90ff',
        transition: 'width 0.3s',
      }} />
    </div>
  );
}

function StatusBadge({ label, done }: { label: string; done: boolean }) {
  return (
    <span style={{
      padding: '4px 8px',
      borderRadius: 4,
      background: done ? '#32cd32' : '#ffd700',
      color: 'white',
      fontSize: 12,
    }}>
      {done ? '✓' : '⏳'} {label}
    </span>
  );
}

// 3. Artifact Viewer View
function ArtifactViewerView({ missions }: { missions: Mission[] }) {
  const [selectedMission, setSelectedMission] = useState<Mission | null>(missions[0] || null);

  if (!selectedMission) return <div>No missions yet</div>;

  return (
    <div>
      <h3>Artifact Viewer</h3>

      {/* Mission selector */}
      <select
        value={selectedMission.id}
        onChange={e => {
          const mission = missions.find(m => m.id === e.target.value);
          if (mission) setSelectedMission(mission);
        }}
        style={{ marginBottom: 16, padding: 8 }}
      >
        {missions.map(m => (
          <option key={m.id} value={m.id}>{m.id}</option>
        ))}
      </select>

      <div style={{ display: 'grid', gap: 16 }}>
        {/* Original */}
        <div style={{ border: '1px solid #ccc', padding: 16, borderRadius: 8 }}>
          <h4>Original</h4>
          <div style={{
            background: '#f0f0f0',
            height: 200,
            display: 'flex',
            alignItems: 'center',
            justifyContent: 'center',
            borderRadius: 4,
          }}>
            <span style={{ fontSize: 48 }}>🎥</span>
          </div>
        </div>

        {/* Metadata */}
        <div style={{ border: '1px solid #ccc', padding: 16, borderRadius: 8 }}>
          <h4>Metadata</h4>
          <p><strong>GPS:</strong> 59.3293, 18.0686</p>
          <p><strong>Hash:</strong> <code>sha256:abc123...</code></p>
          <p><strong>Storage:</strong> <code>file:///uploads/...</code></p>
        </div>

        {/* Knowledge */}
        <div style={{ border: '1px solid #ccc', padding: 16, borderRadius: 8 }}>
          <h4>Knowledge</h4>
          <p><strong>Objects:</strong> Pending</p>
          <p><strong>Ontology:</strong> Pending</p>
        </div>

        {/* History */}
        <div style={{ border: '1px solid #ccc', padding: 16, borderRadius: 8 }}>
          <h4>History</h4>
          <p>Created: {new Date(selectedMission.createdAt).toLocaleString()}</p>
        </div>
      </div>
    </div>
  );
}

// 4. Processing Timeline View
function TimelineView({ missions }: { missions: Mission[] }) {
  return (
    <div>
      <h3>Processing Timeline</h3>
      {missions.map(mission => (
        <div key={mission.id} style={{ border: '1px solid #ccc', padding: 16, borderRadius: 8, marginBottom: 16 }}>
          <h4>{mission.id}</h4>
          <TimelineStep label="Uploaded" time="09:41" done={mission.steps.uploaded} />
          <TimelineStep label="Archived" time="09:41" done={mission.steps.archived} />
          <TimelineStep label="Metadata" time="09:42" done={mission.steps.metadataExtracted} />
          <TimelineStep label="Knowledge" time="09:43" done={mission.steps.knowledgeExtracted} />
          <TimelineStep label="Decision" time="Pending" done={mission.steps.decisionReady} />
        </div>
      ))}
    </div>
  );
}

function TimelineStep({ label, time, done }: { label: string; time: string; done: boolean }) {
  return (
    <div style={{ display: 'flex', alignItems: 'center', gap: 12, marginBottom: 8 }}>
      <span style={{
        width: 12,
        height: 12,
        borderRadius: '50%',
        background: done ? '#32cd32' : '#ccc',
      }} />
      <span style={{ minWidth: 100, color: '#666' }}>{time}</span>
      <span style={{ color: done ? '#333' : '#999' }}>{label}</span>
    </div>
  );
}

export default FieldConsole;