import { useTranslation } from 'react-i18next'
import { ProjectHealthItem, RiskLevel, ScheduleStatus, ResourceStatus } from '../services/projectHealth'

interface ProjectHealthCardProps {
  project: ProjectHealthItem
  onClick?: (projectId: string) => void
}

// Color mapping for health scores
function getHealthScoreColor(score: number): string {
  if (score >= 80) return '#4caf50' // Green
  if (score >= 60) return '#ff9800' // Yellow/Orange
  if (score >= 40) return '#ff5722' // Orange
  return '#f44336' // Red
}

// Risk level colors
const riskLevelColors: Record<RiskLevel, { color: string; bgColor: string }> = {
  low: { color: '#2e7d32', bgColor: '#e8f5e9' },
  medium: { color: '#f57c00', bgColor: '#fff3e0' },
  high: { color: '#d84315', bgColor: '#fbe9e7' },
  critical: { color: '#c62828', bgColor: '#ffebee' },
}

// Schedule status translation keys
const scheduleStatusKeys: Record<ScheduleStatus, string> = {
  on_track: 'status.onTrack',
  at_risk: 'status.atRisk',
  delayed: 'status.delayed',
}

// Resource status translation keys
const resourceStatusKeys: Record<ResourceStatus, string> = {
  adequate: 'resourceStatus.adequate',
  constrained: 'resourceStatus.constrained',
  overloaded: 'resourceStatus.overloaded',
}

export function ProjectHealthCard({ project, onClick }: ProjectHealthCardProps) {
  const { t } = useTranslation('health')
  const healthColor = getHealthScoreColor(project.health_score)
  const riskColors = riskLevelColors[project.risk_level]
  const progressPercent = project.task_count > 0
    ? Math.round((project.completed_task_count / project.task_count) * 100)
    : 0

  const handleClick = () => {
    if (onClick) {
      onClick(project.project_id)
    }
  }

  return (
    <div
      style={styles.card}
      onClick={handleClick}
      role="button"
      tabIndex={0}
      onKeyDown={(e) => {
        if (e.key === 'Enter' || e.key === ' ') {
          handleClick()
        }
      }}
      aria-label={`Project ${project.project_title}, health score ${project.health_score}`}
    >
      {/* Header */}
      <div style={styles.header}>
        <div style={styles.titleSection}>
          <h3 style={styles.title}>{project.project_title}</h3>
          {project.space_name && (
            <span style={styles.spaceName}>{project.space_name}</span>
          )}
        </div>
        <div
          style={{
            ...styles.riskBadge,
            color: riskColors.color,
            backgroundColor: riskColors.bgColor,
          }}
        >
          {t(`riskLevel.${project.risk_level}`)}
        </div>
      </div>

      {/* Health Score */}
      <div style={styles.scoreSection}>
        <div style={styles.scoreCircle}>
          <svg width="80" height="80" viewBox="0 0 80 80">
            {/* Background circle */}
            <circle
              cx="40"
              cy="40"
              r="35"
              fill="none"
              stroke="#e0e0e0"
              strokeWidth="6"
            />
            {/* Progress circle */}
            <circle
              cx="40"
              cy="40"
              r="35"
              fill="none"
              stroke={healthColor}
              strokeWidth="6"
              strokeLinecap="round"
              strokeDasharray={`${(project.health_score / 100) * 220} 220`}
              transform="rotate(-90 40 40)"
            />
          </svg>
          <div style={styles.scoreText}>
            <span style={{ ...styles.scoreValue, color: healthColor }}>
              {project.health_score}
            </span>
            <span style={styles.scoreLabel}>{t('card.health')}</span>
          </div>
        </div>
        <div style={styles.statusSection}>
          <div style={styles.statusItem}>
            <span style={styles.statusLabel}>{t('card.schedule')}</span>
            <span style={styles.statusValue}>
              {t(scheduleStatusKeys[project.schedule_status])}
            </span>
          </div>
          <div style={styles.statusItem}>
            <span style={styles.statusLabel}>{t('card.resources')}</span>
            <span style={styles.statusValue}>
              {t(resourceStatusKeys[project.resource_status])}
            </span>
          </div>
          {project.owner_name && (
            <div style={styles.statusItem}>
              <span style={styles.statusLabel}>{t('card.owner')}</span>
              <span style={styles.statusValue}>{project.owner_name}</span>
            </div>
          )}
        </div>
      </div>

      {/* Task Progress */}
      <div style={styles.progressSection}>
        <div style={styles.progressHeader}>
          <span style={styles.progressLabel}>{t('card.taskProgress')}</span>
          <span style={styles.progressValue}>
            {project.completed_task_count} / {project.task_count}
          </span>
        </div>
        <div style={styles.progressBarContainer}>
          <div
            style={{
              ...styles.progressBar,
              width: `${progressPercent}%`,
              backgroundColor: healthColor,
            }}
          />
        </div>
      </div>

      {/* Metrics */}
      <div style={styles.metricsSection}>
        <div style={styles.metricItem}>
          <span style={styles.metricValue}>{project.blocker_count}</span>
          <span style={styles.metricLabel}>{t('card.blockers')}</span>
        </div>
        <div style={styles.metricItem}>
          <span style={{ ...styles.metricValue, color: project.overdue_task_count > 0 ? '#f44336' : 'inherit' }}>
            {project.overdue_task_count}
          </span>
          <span style={styles.metricLabel}>{t('card.overdue')}</span>
        </div>
        <div style={styles.metricItem}>
          <span style={styles.metricValue}>{progressPercent}%</span>
          <span style={styles.metricLabel}>{t('card.complete')}</span>
        </div>
      </div>
    </div>
  )
}

const styles: { [key: string]: React.CSSProperties } = {
  card: {
    backgroundColor: 'white',
    borderRadius: '8px',
    boxShadow: '0 1px 3px rgba(0, 0, 0, 0.1)',
    padding: '20px',
    cursor: 'pointer',
    transition: 'box-shadow 0.2s ease, transform 0.2s ease',
  },
  header: {
    display: 'flex',
    justifyContent: 'space-between',
    alignItems: 'flex-start',
    marginBottom: '16px',
  },
  titleSection: {
    flex: 1,
    minWidth: 0,
  },
  title: {
    margin: 0,
    fontSize: '16px',
    fontWeight: 600,
    color: '#333',
    whiteSpace: 'nowrap',
    overflow: 'hidden',
    textOverflow: 'ellipsis',
  },
  spaceName: {
    fontSize: '12px',
    color: '#666',
    marginTop: '4px',
    display: 'block',
  },
  riskBadge: {
    padding: '4px 10px',
    borderRadius: '4px',
    fontSize: '12px',
    fontWeight: 500,
    marginLeft: '12px',
    flexShrink: 0,
  },
  scoreSection: {
    display: 'flex',
    alignItems: 'center',
    gap: '20px',
    marginBottom: '16px',
  },
  scoreCircle: {
    position: 'relative',
    width: '80px',
    height: '80px',
    flexShrink: 0,
  },
  scoreText: {
    position: 'absolute',
    top: '50%',
    left: '50%',
    transform: 'translate(-50%, -50%)',
    textAlign: 'center',
  },
  scoreValue: {
    fontSize: '24px',
    fontWeight: 700,
    display: 'block',
    lineHeight: 1,
  },
  scoreLabel: {
    fontSize: '10px',
    color: '#666',
    textTransform: 'uppercase',
    letterSpacing: '0.5px',
  },
  statusSection: {
    flex: 1,
    display: 'flex',
    flexDirection: 'column',
    gap: '8px',
  },
  statusItem: {
    display: 'flex',
    justifyContent: 'space-between',
    alignItems: 'center',
  },
  statusLabel: {
    fontSize: '12px',
    color: '#666',
  },
  statusValue: {
    fontSize: '12px',
    fontWeight: 500,
    color: '#333',
  },
  progressSection: {
    marginBottom: '16px',
  },
  progressHeader: {
    display: 'flex',
    justifyContent: 'space-between',
    marginBottom: '8px',
  },
  progressLabel: {
    fontSize: '12px',
    color: '#666',
  },
  progressValue: {
    fontSize: '12px',
    fontWeight: 500,
    color: '#333',
  },
  progressBarContainer: {
    height: '6px',
    backgroundColor: '#e0e0e0',
    borderRadius: '3px',
    overflow: 'hidden',
  },
  progressBar: {
    height: '100%',
    borderRadius: '3px',
    transition: 'width 0.3s ease',
  },
  metricsSection: {
    display: 'flex',
    justifyContent: 'space-around',
    paddingTop: '16px',
    borderTop: '1px solid #eee',
  },
  metricItem: {
    textAlign: 'center',
  },
  metricValue: {
    fontSize: '18px',
    fontWeight: 600,
    color: '#333',
    display: 'block',
  },
  metricLabel: {
    fontSize: '11px',
    color: '#666',
    textTransform: 'uppercase',
    letterSpacing: '0.5px',
  },
}

export default ProjectHealthCard