86 lines
3.5 KiB
TypeScript
86 lines
3.5 KiB
TypeScript
// Migration mapping from old skill IDs to new progression step IDs
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// This allows existing mastery data to work with the new progression system
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import type { SkillId } from './skills'
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/**
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* Maps old skill IDs to new progression step IDs
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*
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* Strategy:
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* - Old skills with ten-frames → map to "full" scaffolding steps
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* - Old skills without ten-frames → map to "minimal" scaffolding steps
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* - Skills that don't have a direct equivalent → map to closest step
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*/
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export const SKILL_TO_STEP_MIGRATION: Record<SkillId, string> = {
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// ============================================================================
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// ADDITION SKILLS → SINGLE_CARRY_PATH steps
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// ============================================================================
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// Single-digit addition
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'sd-no-regroup': 'single-carry-1d-full', // Basic addition, map to first step
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'sd-simple-regroup': 'single-carry-1d-full', // Has ten-frames → full scaffolding
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// Two-digit addition
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'td-no-regroup': 'single-carry-2d-full', // No regrouping, but map to 2-digit entry point
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'td-ones-regroup': 'single-carry-2d-full', // Ones place regrouping → 2-digit full
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'td-mixed-regroup': 'single-carry-2d-minimal', // Mixed regrouping, more advanced → minimal
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'td-full-regroup': 'single-carry-2d-minimal', // Full regrouping → minimal scaffolding
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// Three-digit addition
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'3d-no-regroup': 'single-carry-3d-full', // No regrouping, but map to 3-digit entry
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'3d-simple-regroup': 'single-carry-3d-full', // Simple regrouping → full scaffolding
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'3d-full-regroup': 'single-carry-3d-minimal', // Full regrouping → minimal scaffolding
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// Four/five-digit addition (no direct equivalent, map to end of path)
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'4d-mastery': 'single-carry-3d-minimal', // Advanced, map to final step
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'5d-mastery': 'single-carry-3d-minimal', // Advanced, map to final step
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// ============================================================================
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// SUBTRACTION SKILLS → Future borrowing paths
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// ============================================================================
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// For now, map to addition equivalents (will create SINGLE_BORROW_PATH later)
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// Single-digit subtraction
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'sd-sub-no-borrow': 'single-carry-1d-full', // Map to equivalent complexity
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// Two-digit subtraction
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'td-sub-no-borrow': 'single-carry-2d-full',
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'td-sub-ones-borrow': 'single-carry-2d-full',
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'td-sub-mixed-borrow': 'single-carry-2d-minimal',
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'td-sub-full-borrow': 'single-carry-2d-minimal',
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// Three-digit subtraction
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'3d-sub-simple': 'single-carry-3d-full',
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'3d-sub-complex': 'single-carry-3d-minimal',
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// Four/five-digit subtraction
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'4d-sub-mastery': 'single-carry-3d-minimal',
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'5d-sub-mastery': 'single-carry-3d-minimal',
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}
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/**
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* Migrate old skill ID to new step ID
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* @param skillId - Old skill ID from skills.ts
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* @returns New step ID from progressionPath.ts
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*/
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export function migrateSkillToStep(skillId: SkillId): string {
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return SKILL_TO_STEP_MIGRATION[skillId] ?? 'single-carry-1d-full'
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}
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/**
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* Check if a skill ID exists in the migration mapping
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*/
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export function isSkillMigrated(skillId: SkillId): boolean {
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return skillId in SKILL_TO_STEP_MIGRATION
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}
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/**
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* Get all old skill IDs that map to a given step ID
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* Useful for displaying which legacy skills contributed to a step's mastery
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*/
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export function getSkillsForStep(stepId: string): SkillId[] {
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return Object.entries(SKILL_TO_STEP_MIGRATION)
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.filter(([_, targetStepId]) => targetStepId === stepId)
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.map(([skillId]) => skillId as SkillId)
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}
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