Function finalizeAddOns

packages/create/src/add-ons.ts:17–62

(
  framework: Framework,
  mode: string,
  chosenAddOnIDs: Array<string>,
)

// Turn the list of chosen add-on IDs into a final list of add-ons by resolving dependencies
export async function finalizeAddOns(
  framework: Framework,
  mode: string,
  chosenAddOnIDs: Array<string>,
): Promise<Array<AddOn>> {
  const finalAddOnIDs = new Set(chosenAddOnIDs)

  const addOns = getAllAddOns(framework, mode)

  for (const addOnID of finalAddOnIDs) {
    let addOn: AddOn | undefined
    const localAddOn =
      addOns.find((a) => a.id === addOnID) ??
      addOns.find((a) => a.id.toLowerCase() === addOnID.toLowerCase())
    if (localAddOn) {
      addOn = loadAddOn(localAddOn)
      if (localAddOn.id !== addOnID) {
        // Replace the mistyped ID with the canonical one
        finalAddOnIDs.delete(addOnID)
        finalAddOnIDs.add(localAddOn.id)
      }
    } else if (addOnID.startsWith('http')) {
      addOn = await loadRemoteAddOn(addOnID)
      addOns.push(addOn)
    } else {
      const suggestion = findClosestAddOn(addOnID, addOns)
      throw new Error(
        `Add-on ${addOnID} not found${suggestion ? `. Did you mean "${suggestion}"?` : ''}`,
      )
    }

    for (const dependsOn of addOn.dependsOn || []) {
      const dep = addOns.find((a) => a.id === dependsOn)
      if (!dep) {
        throw new Error(`Dependency ${dependsOn} not found`)
      }
      finalAddOnIDs.add(dep.id)
    }
  }

  const finalAddOns = [...finalAddOnIDs].map(
    (id) => addOns.find((a) => a.id === id)!,
  )

  return finalAddOns
}

function loadAddOn(addOn: AddOn): AddOn {
  return addOn