'use client';

import { motion } from 'framer-motion';
import { CheckCircle as CheckCircle2, XCircle } from '@phosphor-icons/react';
import { fadeUp, fadeIn } from '@/lib/animations';

interface Step {
  name: string;
  label: string;
}

const STEPS: Step[] = [
  { name: 'submitted_to_ncbi', label: 'Submitted to NCBI BLAST' },
  { name: 'polling_ncbi',      label: 'NCBI is searching' },
  { name: 'parsing',           label: 'Reading results' },
  { name: 'interpreting',      label: 'Writing your explanation' },
  { name: 'fetching_alphafold', label: 'Fetching AlphaFold structure' },
  { name: 'complete',          label: 'Complete' },
];

interface JobProgressProps {
  stepsCompleted: string[];
  status: string;
}

export function JobProgress({ stepsCompleted, status }: JobProgressProps) {
  const isComplete = status === 'complete';
  const isFailed = status === 'failed';
  const stepSet = new Set(stepsCompleted);
  const pct = stepsCompleted.length === 0 ? 0 : Math.round((stepsCompleted.length / STEPS.length) * 100);

  const nextPendingIndex = stepsCompleted.length;

  return (
    <motion.div variants={fadeUp} className="glass-card p-6">
      <div className="flex items-center justify-between mb-4">
        <h3 className="text-sm font-semibold text-text-primary">Pipeline progress</h3>
        <span className="text-xs text-text-muted">{pct}%</span>
      </div>
      <div className="w-full bg-surface-0 rounded-full h-1.5 mb-5">
        <div
          className={`h-1.5 rounded-full transition-all duration-500 ${isFailed ? 'bg-error' : 'bg-accent-cyan'}`}
          style={{ width: `${pct}%` }}
        />
      </div>
      <div className="space-y-3">
        {STEPS.map((step, i) => {
          const done = stepSet.has(step.name);
          const active = status === 'running' && !done && i === nextPendingIndex;
          return (
            <motion.div key={step.name} variants={fadeIn} className="flex items-center gap-3">
              {done ? (
                <CheckCircle2 className="w-5 h-5 text-accent-cyan shrink-0" />
              ) : isFailed ? (
                <XCircle className="w-5 h-5 text-error shrink-0" />
              ) : active ? (
                <div className="w-5 h-5 rounded-full bg-accent-cyan animate-pulse shrink-0" />
              ) : (
                <div className="w-5 h-5 rounded-full border-2 border-glass-border shrink-0" />
              )}
              <span className={`text-sm ${done ? 'text-text-primary font-medium' : active ? 'text-accent-cyan' : 'text-text-muted'}`}>
                {step.label}
              </span>
            </motion.div>
          );
        })}
      </div>
      {isComplete && (
        <p className="text-xs text-accent-cyan mt-3 font-medium">All steps complete</p>
      )}
      {isFailed && (
        <p className="text-xs text-error mt-3 font-medium">Pipeline failed</p>
      )}
    </motion.div>
  );
}