All files / web/src/app/create/worksheets/components ConfigSidebar.tsx

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'use client'

import { css } from '@styled/css'
import { useEffect, useState } from 'react'
import { useTheme } from '@/contexts/ThemeContext'
import type { DisplayRules } from '../displayRules'
import { getSkillById } from '../skills'
import { StudentNameInput } from './config-panel/StudentNameInput'
import { ContentTab } from './config-sidebar/ContentTab'
import { DifficultyTab } from './config-sidebar/DifficultyTab'
import { LayoutTab } from './config-sidebar/LayoutTab'
import { ScaffoldingTab } from './config-sidebar/ScaffoldingTab'
import { TabNavigation } from './config-sidebar/TabNavigation'
import { useWorksheetConfig } from './WorksheetConfigContext'

const ACTIVE_TAB_KEY = 'worksheet-config-active-tab'

interface ConfigSidebarProps {
  isSaving?: boolean
  lastSaved?: Date | null
  isReadOnly?: boolean
}

export function ConfigSidebar({
  isSaving = false,
  lastSaved = null,
  isReadOnly = false,
}: ConfigSidebarProps) {
  const { resolvedTheme } = useTheme()
  const isDark = resolvedTheme === 'dark'
  const { formState, onChange, isReadOnly: contextReadOnly } = useWorksheetConfig()
  const effectiveReadOnly = isReadOnly || contextReadOnly

  // Get resolved display rules for showing what 'auto' defers to (mastery mode only)
  let resolvedDisplayRules: DisplayRules | undefined
  if (formState.mode === 'mastery') {
    const operator = formState.operator ?? 'addition'
    const skillId =
      operator === 'addition' || operator === 'mixed'
        ? formState.currentAdditionSkillId
        : formState.currentSubtractionSkillId

    if (skillId) {
      const skill = getSkillById(skillId as any)
      resolvedDisplayRules = skill?.recommendedScaffolding
    }
  }

  // Always initialize with default to avoid hydration mismatch
  const [activeTab, setActiveTab] = useState<string>('operator')
  const [isInitialized, setIsInitialized] = useState(false)

  // Load from sessionStorage after mount (client-side only, runs once)
  useEffect(() => {
    const savedTab = sessionStorage.getItem(ACTIVE_TAB_KEY)
    if (savedTab) {
      setActiveTab(savedTab)
    }
    setIsInitialized(true)
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [])

  // Persist activeTab to sessionStorage whenever it changes (but only after initialization)
  useEffect(() => {
    if (isInitialized) {
      sessionStorage.setItem(ACTIVE_TAB_KEY, activeTab)
    }
  }, [activeTab, isInitialized])

  return (
    <div
      data-component="config-sidebar"
      className={css({
        h: 'full',
        bg: isDark ? 'gray.800' : 'white',
        p: '4',
        overflow: 'auto',
        display: 'flex',
        flexDirection: 'column',
      })}
    >
      {/* Header */}
      <div
        className={css({
          display: 'flex',
          justifyContent: 'space-between',
          alignItems: 'center',
          pb: '3',
          borderBottom: '1px solid',
          borderColor: isDark ? 'gray.700' : 'gray.200',
          mb: '4',
        })}
      >
        <h2
          className={css({
            fontSize: 'lg',
            fontWeight: 'bold',
            color: isDark ? 'gray.100' : 'gray.900',
          })}
        >
          Worksheet Studio
        </h2>
        <div
          className={css({
            fontSize: 'xs',
            color: effectiveReadOnly
              ? isDark
                ? 'blue.400'
                : 'blue.600'
              : isSaving
                ? isDark
                  ? 'gray.400'
                  : 'gray.500'
                : isDark
                  ? 'green.400'
                  : 'green.600',
          })}
        >
          {effectiveReadOnly ? '👁️ Read-Only' : isSaving ? 'Saving...' : lastSaved ? '✓ Saved' : ''}
        </div>
      </div>

      {/* Student Name - Global field above tabs */}
      <div className={css({ mb: '4' })}>
        <StudentNameInput
          value={formState.name}
          onChange={(name) => onChange({ name })}
          isDark={isDark}
          readOnly={effectiveReadOnly}
        />
      </div>

      {/* Tab Navigation */}
      <div className={css({ mb: '4' })}>
        <TabNavigation
          activeTab={activeTab}
          onChange={setActiveTab}
          operator={formState.operator}
          mode={formState.mode as 'custom' | 'manual' | 'mastery' | undefined}
          difficultyProfile={formState.difficultyProfile}
          interpolate={formState.interpolate}
          orientation={formState.orientation}
          problemsPerPage={formState.problemsPerPage}
          cols={formState.cols}
          pages={formState.pages}
          displayRules={formState.displayRules}
          resolvedDisplayRules={resolvedDisplayRules}
          digitRange={formState.digitRange}
        />
      </div>

      {/* Tab Content */}
      <div
        className={css({
          flex: 1,
          bg: isDark ? 'gray.750' : 'gray.50',
          rounded: 'lg',
          p: '4',
          overflow: 'auto',
          display: 'flex',
          flexDirection: 'column',
          opacity: effectiveReadOnly ? '0.7' : '1',
          pointerEvents: effectiveReadOnly ? 'none' : 'auto',
        })}
      >
        {activeTab === 'operator' && <ContentTab />}
        {activeTab === 'layout' && <LayoutTab />}
        {activeTab === 'scaffolding' && <ScaffoldingTab />}
        {activeTab === 'difficulty' && <DifficultyTab />}
      </div>
    </div>
  )
}