Refactor outfit state selection
Here, we consolidate useOutfitState to get its base `outfitState` from a few different places: parsing the URL, and processing the saved outfit data, return an object of the same shape as the state stored in the reducer. This enables us to just pick one of the three, instead of our kinda awkward individual-field fallbacks. This will also help us with some upcoming work to make Back/Forward navigation work better.
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1 changed files with 100 additions and 90 deletions
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@ -12,10 +12,10 @@ export const OutfitStateContext = React.createContext(null);
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function useOutfitState() {
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const apolloClient = useApolloClient();
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const initialState = useParseOutfitUrl();
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const [state, dispatchToOutfit] = React.useReducer(
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const urlOutfitState = useParseOutfitUrl();
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const [localOutfitState, dispatchToOutfit] = React.useReducer(
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outfitStateReducer(apolloClient),
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initialState
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urlOutfitState
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);
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// If there's an outfit ID (i.e. we're on /outfits/:id), load basic data
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@ -56,55 +56,61 @@ function useOutfitState() {
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}
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`,
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{
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variables: { id: state.id },
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skip: state.id == null,
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variables: { id: urlOutfitState.id },
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skip: urlOutfitState.id == null,
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returnPartialData: true,
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onCompleted: (outfitData) => {
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// This is only called once the _entire_ query loads, regardless of
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// `returnPartialData`. We just use that for some early UI!
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//
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// Even though we do a HACK to make these values visible early, we
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// still want to write them to state, so that reducers can see them and
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// edit them!
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const outfit = outfitData.outfit;
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dispatchToOutfit({
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type: "reset",
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name: outfit.name,
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speciesId: outfit.petAppearance.species.id,
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colorId: outfit.petAppearance.color.id,
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pose: outfit.petAppearance.pose,
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wornItemIds: outfit.wornItems.map((item) => item.id),
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closetedItemIds: outfit.closetedItems.map((item) => item.id),
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newState: getOutfitStateFromOutfitData(outfitData.outfit),
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});
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},
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}
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);
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// HACK: We fall back to outfit data here, to help the loading states go
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// smoother. (Otherwise, there's a flicker where `outfitLoading` is false,
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// but the `reset` action hasn't fired yet.) This also enables partial outfit
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// data to show early, like the name, if we're navigating from Your Outfits.
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//
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// We also call `Array.from` on our item IDs. It's more convenient to manage
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// them as a Set in state, but most callers will find it more convenient to
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// access them as arrays! e.g. for `.map()`.
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const outfit = outfitData?.outfit || null;
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const id = state.id;
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const creator = outfit?.creator || null;
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const name = state.name || outfit?.name || null;
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const speciesId =
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state.speciesId || outfit?.petAppearance?.species?.id || null;
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const colorId = state.colorId || outfit?.petAppearance?.color?.id || null;
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const pose = state.pose || outfit?.petAppearance?.pose || null;
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const appearanceId = state.appearanceId || null;
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const wornItemIds = Array.from(
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state.wornItemIds || outfit?.wornItems?.map((i) => i.id)
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);
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const closetedItemIds = Array.from(
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state.closetedItemIds || outfit?.closetedItems?.map((i) => i.id)
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);
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const creator = outfitData?.outfit?.creator;
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const allItemIds = [...state.wornItemIds, ...state.closetedItemIds];
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const savedOutfitState = getOutfitStateFromOutfitData(outfitData?.outfit);
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// Choose which customization state to use. We want it to match the outfit in
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// the URL immediately, without having to wait for any effects, to avoid race
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// conditions!
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//
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// The reducer is generally the main source of truth for live changes!
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//
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// But if:
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// - it's not initialized yet (e.g. the first frame of navigating to an
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// outfit from Your Outfits), or
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// - it's for a different outfit than the URL says (e.g. clicking Back
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// or Forward to switch between saved outfits),
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//
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// Then use saved outfit data or the URL query string instead, because that's
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// a better representation of the outfit in the URL. (If the saved outfit
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// data isn't loaded yet, then this will be a customization state with
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// partial data, and that's okay.)
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let outfitState;
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if (urlOutfitState.id === localOutfitState.id) {
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// Use the reducer state: they're both for the same saved outfit, or both
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// for an unsaved outfit (null === null).
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outfitState = localOutfitState;
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} else if (urlOutfitState.id && urlOutfitState.id === savedOutfitState.id) {
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// Use the saved outfit state: it's for the saved outfit the URL points to.
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outfitState = savedOutfitState;
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} else {
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// Use the URL state: it's more up-to-date than any of the others. (Worst
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// case, it's empty except for ID, which is fine while the saved outfit
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// data loads!)
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outfitState = urlOutfitState;
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}
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// When unpacking the customization state, we call `Array.from` on our item
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// IDs. It's more convenient to manage them as a Set in state, but most
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// callers will find it more convenient to access them as arrays! e.g. for
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// `.map()`.
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const { name, speciesId, colorId, pose, appearanceId } = outfitState;
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const wornItemIds = Array.from(outfitState.wornItemIds);
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const closetedItemIds = Array.from(outfitState.closetedItemIds);
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const allItemIds = [...wornItemIds, ...closetedItemIds];
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const {
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loading: itemsLoading,
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@ -209,10 +215,10 @@ function useOutfitState() {
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.filter((i) => i.appearanceOn.layers.length === 0)
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.sort((a, b) => a.name.localeCompare(b.name));
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const url = buildOutfitUrl(state);
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const url = buildOutfitUrl(outfitState);
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const outfitState = {
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id,
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const outfitStateWithExtras = {
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id: urlOutfitState.outfitId,
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creator,
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zonesAndItems,
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incompatibleItems,
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@ -235,7 +241,7 @@ function useOutfitState() {
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return {
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loading: outfitLoading || itemsLoading,
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error: outfitError || itemsError,
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outfitState,
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outfitState: outfitStateWithExtras,
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dispatchToOutfit,
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};
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}
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@ -243,15 +249,16 @@ function useOutfitState() {
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const outfitStateReducer = (apolloClient) => (baseState, action) => {
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switch (action.type) {
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case "rename":
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return { ...baseState, name: action.outfitName };
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return produce(baseState, (state) => {
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state.name = action.outfitName;
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});
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case "setSpeciesAndColor":
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return {
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...baseState,
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speciesId: action.speciesId,
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colorId: action.colorId,
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pose: action.pose,
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appearanceId: null,
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};
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return produce(baseState, (state) => {
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state.speciesId = action.speciesId;
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state.colorId = action.colorId;
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state.pose = action.pose;
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state.appearanceId = null;
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});
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case "wearItem":
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return produce(baseState, (state) => {
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const { wornItemIds, closetedItemIds } = state;
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@ -310,41 +317,31 @@ const outfitStateReducer = (apolloClient) => (baseState, action) => {
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reconsiderItems(itemIdsToReconsider, state, apolloClient);
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});
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case "setPose":
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return {
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...baseState,
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pose: action.pose,
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return produce(baseState, (state) => {
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state.pose = action.pose;
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// Usually only the `pose` is specified, but `PosePickerSupport` can
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// also specify a corresponding `appearanceId`, to get even more
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// particular about which version of the pose to show if more than one.
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appearanceId: action.appearanceId || null,
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};
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case "reset":
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return produce(baseState, (state) => {
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const {
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name,
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speciesId,
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colorId,
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pose,
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wornItemIds,
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closetedItemIds,
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} = action;
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state.name = name;
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state.speciesId = speciesId ? String(speciesId) : baseState.speciesId;
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state.colorId = colorId ? String(colorId) : baseState.colorId;
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state.pose = pose || baseState.pose;
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state.wornItemIds = wornItemIds
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? new Set(wornItemIds.map(String))
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: baseState.wornItemIds;
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state.closetedItemIds = closetedItemIds
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? new Set(closetedItemIds.map(String))
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: baseState.closetedItemIds;
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state.appearanceId = action.appearanceId || null;
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});
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case "reset":
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return action.newState;
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default:
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throw new Error(`unexpected action ${JSON.stringify(action)}`);
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}
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};
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const EMPTY_CUSTOMIZATION_STATE = {
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id: null,
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name: null,
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speciesId: null,
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colorId: null,
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pose: null,
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appearanceId: null,
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wornItemIds: [],
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closetedItemIds: [],
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};
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function useParseOutfitUrl() {
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const { id } = useParams();
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@ -352,14 +349,8 @@ function useParseOutfitUrl() {
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// outfit data to load in!
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if (id != null) {
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return {
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...EMPTY_CUSTOMIZATION_STATE,
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id,
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name: null,
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speciesId: null,
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colorId: null,
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pose: null,
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appearanceId: null,
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wornItemIds: [],
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closetedItemIds: [],
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};
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}
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@ -367,7 +358,7 @@ function useParseOutfitUrl() {
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// not specified.
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const urlParams = new URLSearchParams(window.location.search);
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return {
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id: id,
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id: null,
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name: urlParams.get("name"),
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speciesId: urlParams.get("species") || "1",
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colorId: urlParams.get("color") || "8",
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@ -378,6 +369,25 @@ function useParseOutfitUrl() {
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};
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}
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function getOutfitStateFromOutfitData(outfit) {
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if (!outfit) {
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return EMPTY_CUSTOMIZATION_STATE;
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}
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return {
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id: outfit.id,
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name: outfit.name,
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// Note that these fields are intentionally null if loading, rather than
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// falling back to a default appearance like Blue Acara.
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speciesId: outfit.petAppearance?.species?.id,
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colorId: outfit.petAppearance?.color?.id,
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pose: outfit.petAppearance?.pose,
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// Whereas the items are more convenient to just leave as empty lists!
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wornItemIds: (outfit.wornItems || []).map((item) => item.id),
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closetedItemIds: (outfit.closetedItems || []).map((item) => item.id),
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};
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}
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function findItemConflicts(itemIdToAdd, state, apolloClient) {
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const { wornItemIds, speciesId, colorId } = state;
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@ -554,7 +564,7 @@ function getZonesAndItems(itemsById, wornItemIds, closetedItemIds) {
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return zonesAndItems;
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}
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function buildOutfitUrl(state) {
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function buildOutfitUrl(outfitState) {
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const {
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id,
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name,
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@ -564,7 +574,7 @@ function buildOutfitUrl(state) {
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appearanceId,
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wornItemIds,
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closetedItemIds,
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} = state;
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} = outfitState;
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const { origin, pathname } = window.location;
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