import type { ProceduralStep } from '@/types'
import { Terminal, Info, CheckSquare, AlertTriangle, LayoutList } from 'lucide-react'
import { cn } from '@/lib/utils'

interface StaticStepsPreviewProps {
  steps: ProceduralStep[]
  name?: string
}

const CONTENT_TYPE_ICONS: Record<string, typeof Terminal> = {
  action: Terminal,
  informational: Info,
  verification: CheckSquare,
  warning: AlertTriangle,
}

export function StaticStepsPreview({ steps, name }: StaticStepsPreviewProps) {
  let stepNumber = 0

  return (
    <div className="flex h-full flex-col">
      <div className="border-b border-border px-4 py-2">
        <h3 className="text-sm font-semibold text-foreground">
          Preview: {name || 'Untitled Flow'}
        </h3>
        <p className="text-xs text-muted-foreground">
          {steps.filter((s) => s.type === 'procedure_step').length} steps
        </p>
      </div>
      <div className="flex-1 overflow-auto p-4">
        <div className="space-y-1.5">
          {steps.map((step) => {
            if (step.type === 'section_header') {
              return (
                <div key={step.id} className="pt-3 pb-1 first:pt-0">
                  <div className="flex items-center gap-2">
                    <LayoutList className="h-3.5 w-3.5 text-primary" />
                    <span className="font-label text-[0.625rem] uppercase tracking-[0.1em] text-primary">
                      {step.title}
                    </span>
                  </div>
                </div>
              )
            }

            if (step.type === 'procedure_end') {
              return (
                <div
                  key={step.id}
                  className="mt-2 rounded-lg border border-emerald-500/20 bg-emerald-500/5 px-3 py-2"
                >
                  <span className="text-xs font-medium text-emerald-400">
                    {step.title || 'Procedure Complete'}
                  </span>
                </div>
              )
            }

            stepNumber++
            const contentType = step.content_type || 'action'
            const Icon = CONTENT_TYPE_ICONS[contentType] || Terminal

            return (
              <div
                key={step.id}
                className={cn(
                  'rounded-lg border px-3 py-2 text-xs',
                  contentType === 'warning'
                    ? 'border-amber-500/20 bg-amber-500/5'
                    : 'border-border bg-card'
                )}
              >
                <div className="flex items-start gap-2">
                  <span className="mt-0.5 flex h-4 w-4 shrink-0 items-center justify-center rounded bg-primary/10 font-label text-[0.5rem] text-primary">
                    {stepNumber}
                  </span>
                  <div className="min-w-0 flex-1">
                    <div className="flex items-center gap-1.5">
                      <Icon className={cn(
                        'h-3 w-3 shrink-0',
                        contentType === 'warning' ? 'text-amber-400' : 'text-muted-foreground'
                      )} />
                      <span className={cn(
                        'font-medium truncate',
                        contentType === 'warning' ? 'text-amber-400' : 'text-foreground'
                      )}>
                        {step.title}
                      </span>
                    </div>
                    {step.commands && (
                      <div className="mt-1 flex items-center gap-1 text-muted-foreground">
                        <Terminal className="h-2.5 w-2.5" />
                        <span className="font-label text-[0.5rem]">
                          {Array.isArray(step.commands) ? step.commands.length : 1} command{(Array.isArray(step.commands) ? step.commands.length : 1) !== 1 ? 's' : ''}
                        </span>
                      </div>
                    )}
                  </div>
                  {step.estimated_minutes && (
                    <span className="shrink-0 font-label text-[0.5rem] text-muted-foreground">
                      ~{step.estimated_minutes}m
                    </span>
                  )}
                </div>
              </div>
            )
          })}
        </div>
      </div>
    </div>
  )
}