mapcomplete/Models/ThemeConfig/Conversion/PrepareTheme.ts

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22 KiB
TypeScript

import {Concat, Conversion, DesugaringContext, DesugaringStep, Each, Fuse, On, Pass, SetDefault} from "./Conversion";
import {LayoutConfigJson} from "../Json/LayoutConfigJson";
import {PrepareLayer} from "./PrepareLayer";
import {LayerConfigJson} from "../Json/LayerConfigJson";
import {Utils} from "../../../Utils";
import Constants from "../../Constants";
import CreateNoteImportLayer from "./CreateNoteImportLayer";
import LayerConfig from "../LayerConfig";
import {TagRenderingConfigJson} from "../Json/TagRenderingConfigJson";
import {SubstitutedTranslation} from "../../../UI/SubstitutedTranslation";
import DependencyCalculator from "../DependencyCalculator";
import {AddContextToTranslations} from "./AddContextToTranslations";
class SubstituteLayer extends Conversion<(string | LayerConfigJson), LayerConfigJson[]> {
private readonly _state: DesugaringContext;
constructor(
state: DesugaringContext,
) {
super("Converts the identifier of a builtin layer into the actual layer, or converts a 'builtin' syntax with override in the fully expanded form", [], "SubstituteLayer");
this._state = state;
}
convert(json: string | LayerConfigJson, context: string): { result: LayerConfigJson[]; errors: string[], information?: string[] } {
const errors = []
const information = []
const state = this._state
function reportNotFound(name: string) {
const knownLayers = Array.from(state.sharedLayers.keys())
const withDistance = knownLayers.map(lname => [lname, Utils.levenshteinDistance(name, lname)])
withDistance.sort((a, b) => a[1] - b[1])
const ids = withDistance.map(n => n[0])
// Known builtin layers are "+.join(",")+"\n For more information, see "
errors.push(`${context}: The layer with name ${name} was not found as a builtin layer. Perhaps you meant ${ids[0]}, ${ids[1]} or ${ids[2]}?
For an overview of all available layers, refer to https://github.com/pietervdvn/MapComplete/blob/develop/Docs/BuiltinLayers.md`)
}
if (typeof json === "string") {
const found = state.sharedLayers.get(json)
if (found === undefined) {
reportNotFound(json)
return {
result: null,
errors,
}
}
return {
result: [found],
errors
}
}
if (json["builtin"] !== undefined) {
let names = json["builtin"]
if (typeof names === "string") {
names = [names]
}
const layers = []
for (const name of names) {
const found = Utils.Clone(state.sharedLayers.get(name))
if (found === undefined) {
reportNotFound(name)
continue
}
if (json["override"]["tagRenderings"] !== undefined && (found["tagRenderings"] ?? []).length > 0) {
errors.push(`At ${context}: when overriding a layer, an override is not allowed to override into tagRenderings. Use "+tagRenderings" or "tagRenderings+" instead to prepend or append some questions.`)
}
try {
Utils.Merge(json["override"], found);
layers.push(found)
} catch (e) {
errors.push(`At ${context}: could not apply an override due to: ${e}.\nThe override is: ${JSON.stringify(json["override"],)}`)
}
if (json["hideTagRenderingsWithLabels"]) {
const hideLabels: Set<string> = new Set(json["hideTagRenderingsWithLabels"])
// These labels caused at least one deletion
const usedLabels: Set<string> = new Set<string>();
const filtered = []
for (const tr of found.tagRenderings) {
const labels = tr["labels"]
if (labels !== undefined) {
const forbiddenLabel = labels.findIndex(l => hideLabels.has(l))
if (forbiddenLabel >= 0) {
usedLabels.add(labels[forbiddenLabel])
information.push(context + ": Dropping tagRendering " + tr["id"] + " as it has a forbidden label: " + labels[forbiddenLabel])
continue
}
}
if (hideLabels.has(tr["id"])) {
usedLabels.add(tr["id"])
information.push(context + ": Dropping tagRendering " + tr["id"] + " as its id is a forbidden label")
continue
}
if (hideLabels.has(tr["group"])) {
usedLabels.add(tr["group"])
information.push(context + ": Dropping tagRendering " + tr["id"] + " as its group `" + tr["group"] + "` is a forbidden label")
continue
}
filtered.push(tr)
}
const unused = Array.from(hideLabels).filter(l => !usedLabels.has(l))
if (unused.length > 0) {
errors.push("This theme specifies that certain tagrenderings have to be removed based on forbidden layers. One or more of these layers did not match any tagRenderings and caused no deletions: " + unused.join(", ") + "\n This means that this label can be removed or that the original tagRendering that should be deleted does not have this label anymore")
}
found.tagRenderings = filtered
}
}
return {
result: layers,
errors,
information
}
}
return {
result: [json],
errors
};
}
}
class AddDefaultLayers extends DesugaringStep<LayoutConfigJson> {
private _state: DesugaringContext;
constructor(state: DesugaringContext) {
super("Adds the default layers, namely: " + Constants.added_by_default.join(", "), ["layers"], "AddDefaultLayers");
this._state = state;
}
convert(json: LayoutConfigJson, context: string): { result: LayoutConfigJson; errors: string[]; warnings: string[] } {
const errors = []
const warnings = []
const state = this._state
json.layers = [...json.layers]
const alreadyLoaded = new Set(json.layers.map(l => l["id"]))
for (const layerName of Constants.added_by_default) {
const v = state.sharedLayers.get(layerName)
if (v === undefined) {
errors.push("Default layer " + layerName + " not found")
continue
}
if (alreadyLoaded.has(v.id)) {
warnings.push("Layout " + context + " already has a layer with name " + v.id + "; skipping inclusion of this builtin layer")
continue
}
json.layers.push(v)
}
return {
result: json,
errors,
warnings
};
}
}
class AddImportLayers extends DesugaringStep<LayoutConfigJson> {
constructor() {
super("For every layer in the 'layers'-list, create a new layer which'll import notes. (Note that priviliged layers and layers which have a geojson-source set are ignored)", ["layers"], "AddImportLayers");
}
convert(json: LayoutConfigJson, context: string): { result: LayoutConfigJson; errors: string[] } {
const errors = []
json = {...json}
const allLayers: LayerConfigJson[] = <LayerConfigJson[]>json.layers;
json.layers = [...json.layers]
if (json.enableNoteImports ?? true) {
const creator = new CreateNoteImportLayer()
for (let i1 = 0; i1 < allLayers.length; i1++) {
const layer = allLayers[i1];
if (Constants.priviliged_layers.indexOf(layer.id) >= 0) {
// Priviliged layers are skipped
continue
}
if (layer.source["geoJson"] !== undefined) {
// Layer which don't get their data from OSM are skipped
continue
}
if (layer.title === undefined || layer.name === undefined) {
// Anonymous layers and layers without popup are skipped
continue
}
if (layer.presets === undefined || layer.presets.length == 0) {
// A preset is needed to be able to generate a new point
continue;
}
try {
const importLayerResult = creator.convert(layer, context + ".(noteimportlayer)[" + i1 + "]")
if (importLayerResult.result !== undefined) {
json.layers.push(importLayerResult.result)
}
} catch (e) {
errors.push("Could not generate an import-layer for " + layer.id + " due to " + e)
}
}
}
return {
errors,
result: json
};
}
}
export class AddMiniMap extends DesugaringStep<LayerConfigJson> {
private readonly _state: DesugaringContext;
constructor(state: DesugaringContext,) {
super("Adds a default 'minimap'-element to the tagrenderings if none of the elements define such a minimap", ["tagRenderings"], "AddMiniMap");
this._state = state;
}
/**
* Returns true if this tag rendering has a minimap in some language.
* Note: this minimap can be hidden by conditions
*
* AddMiniMap.hasMinimap({render: "{minimap()}"}) // => true
* AddMiniMap.hasMinimap({render: {en: "{minimap()}"}}) // => true
* AddMiniMap.hasMinimap({render: {en: "{minimap()}", nl: "{minimap()}"}}) // => true
* AddMiniMap.hasMinimap({render: {en: "{minimap()}", nl: "No map for the dutch!"}}) // => true
* AddMiniMap.hasMinimap({render: "{minimap()}"}) // => true
* AddMiniMap.hasMinimap({render: "{minimap(18,featurelist)}"}) // => true
* AddMiniMap.hasMinimap({mappings: [{if: "xyz=abc",then: "{minimap(18,featurelist)}"}]}) // => true
* AddMiniMap.hasMinimap({render: "Some random value {key}"}) // => false
* AddMiniMap.hasMinimap({render: "Some random value {minimap}"}) // => false
*/
static hasMinimap(renderingConfig: TagRenderingConfigJson): boolean {
const translations: any[] = Utils.NoNull([renderingConfig.render, ...(renderingConfig.mappings ?? []).map(m => m.then)]);
for (let translation of translations) {
if (typeof translation == "string") {
translation = {"*": translation}
}
for (const key in translation) {
if (!translation.hasOwnProperty(key)) {
continue
}
const template = translation[key]
const parts = SubstitutedTranslation.ExtractSpecialComponents(template)
const hasMiniMap = parts.filter(part => part.special !== undefined).some(special => special.special.func.funcName === "minimap")
if (hasMiniMap) {
return true;
}
}
}
return false;
}
convert(layerConfig: LayerConfigJson, context: string): { result: LayerConfigJson } {
const state = this._state;
const hasMinimap = layerConfig.tagRenderings?.some(tr => AddMiniMap.hasMinimap(<TagRenderingConfigJson>tr)) ?? true
if (!hasMinimap) {
layerConfig = {...layerConfig}
layerConfig.tagRenderings = [...layerConfig.tagRenderings]
layerConfig.tagRenderings.push(state.tagRenderings.get("questions"))
layerConfig.tagRenderings.push(state.tagRenderings.get("minimap"))
}
return {
result: layerConfig
};
}
}
class AddContextToTransltionsInLayout extends DesugaringStep <LayoutConfigJson> {
constructor() {
super("Adds context to translations, including the prefix 'themes:json.id'; this is to make sure terms in an 'overrides' or inline layer are linkable too", ["_context"], "AddContextToTranlationsInLayout");
}
convert(json: LayoutConfigJson, context: string): { result: LayoutConfigJson; errors?: string[]; warnings?: string[]; information?: string[] } {
const conversion = new AddContextToTranslations<LayoutConfigJson>("themes:")
return conversion.convert(json, json.id);
}
}
class ApplyOverrideAll extends DesugaringStep<LayoutConfigJson> {
constructor() {
super("Applies 'overrideAll' onto every 'layer'. The 'overrideAll'-field is removed afterwards", ["overrideAll", "layers"], "ApplyOverrideAll");
}
convert(json: LayoutConfigJson, context: string): { result: LayoutConfigJson; errors: string[]; warnings: string[] } {
const overrideAll = json.overrideAll;
if (overrideAll === undefined) {
return {result: json, warnings: [], errors: []}
}
json = {...json}
delete json.overrideAll
const newLayers = []
for (let layer of json.layers) {
layer = Utils.Clone(<LayerConfigJson>layer)
Utils.Merge(overrideAll, layer)
newLayers.push(layer)
}
json.layers = newLayers
return {result: json, warnings: [], errors: []};
}
}
class AddDependencyLayersToTheme extends DesugaringStep<LayoutConfigJson> {
private readonly _state: DesugaringContext;
constructor(state: DesugaringContext,) {
super(
`If a layer has a dependency on another layer, these layers are added automatically on the theme. (For example: defibrillator depends on 'walls_and_buildings' to snap onto. This layer is added automatically)
Note that these layers are added _at the start_ of the layer list, meaning that they will see _every_ feature.
Furthermore, \`passAllFeatures\` will be set, so that they won't steal away features from further layers.
Some layers (e.g. \`all_buildings_and_walls\' or \'streets_with_a_name\') are invisible, so by default, \'force_load\' is set too.
`, ["layers"], "AddDependencyLayersToTheme");
this._state = state;
}
private static CalculateDependencies(alreadyLoaded: LayerConfigJson[], allKnownLayers: Map<string, LayerConfigJson>, themeId: string):
{config: LayerConfigJson, reason: string}[] {
const dependenciesToAdd: {config: LayerConfigJson, reason: string}[] = []
const loadedLayerIds: Set<string> = new Set<string>(alreadyLoaded.map(l => l.id));
// Verify cross-dependencies
let unmetDependencies: { neededLayer: string, neededBy: string, reason: string, context?: string }[] = []
do {
const dependencies: { neededLayer: string, reason: string, context?: string, neededBy: string }[] = []
for (const layerConfig of alreadyLoaded) {
try {
const layerDeps = DependencyCalculator.getLayerDependencies(new LayerConfig(layerConfig))
dependencies.push(...layerDeps)
} catch (e) {
console.error(e)
throw "Detecting layer dependencies for " + layerConfig.id + " failed due to " + e
}
}
for (const dependency of dependencies) {
if (loadedLayerIds.has(dependency.neededLayer)) {
// We mark the needed layer as 'mustLoad'
alreadyLoaded.find(l => l.id === dependency.neededLayer).forceLoad = true
}
}
// During the generate script, builtin layers are verified but not loaded - so we have to add them manually here
// Their existence is checked elsewhere, so this is fine
unmetDependencies = dependencies.filter(dep => !loadedLayerIds.has(dep.neededLayer))
for (const unmetDependency of unmetDependencies) {
if (loadedLayerIds.has(unmetDependency.neededLayer)) {
continue
}
const dep = Utils.Clone(allKnownLayers.get(unmetDependency.neededLayer))
const reason = "This layer is needed by " + unmetDependency.neededBy +" because " +
unmetDependency.reason + " (at " + unmetDependency.context + ")";
if (dep === undefined) {
const message =
["Loading a dependency failed: layer " + unmetDependency.neededLayer + " is not found, neither as layer of " + themeId + " nor as builtin layer.",
reason,
"Loaded layers are: " + alreadyLoaded.map(l => l.id).join(",")
]
throw message.join("\n\t");
}
dep.forceLoad = true;
dep.passAllFeatures = true;
dep.description = reason;
dependenciesToAdd.unshift({
config: dep,
reason
})
loadedLayerIds.add(dep.id);
unmetDependencies = unmetDependencies.filter(d => d.neededLayer !== unmetDependency.neededLayer)
}
} while (unmetDependencies.length > 0)
return dependenciesToAdd
}
convert(theme: LayoutConfigJson, context: string): { result: LayoutConfigJson; information: string[] } {
const state = this._state
const allKnownLayers: Map<string, LayerConfigJson> = state.sharedLayers;
const knownTagRenderings: Map<string, TagRenderingConfigJson> = state.tagRenderings;
const information = [];
const layers: LayerConfigJson[] = <LayerConfigJson[]>theme.layers; // Layers should be expanded at this point
knownTagRenderings.forEach((value, key) => {
value.id = key;
})
const dependencies = AddDependencyLayersToTheme.CalculateDependencies(layers, allKnownLayers, theme.id);
for (const dependency of dependencies) {
}
if (dependencies.length > 0) {
for (const dependency of dependencies) {
information.push(context + ": added " + dependency.config.id + " to the theme. "+dependency.reason)
}
}
layers.unshift(...dependencies.map(l => l.config));
return {
result: {
...theme,
layers: layers
},
information
};
}
}
class PreparePersonalTheme extends DesugaringStep<LayoutConfigJson> {
private readonly _state: DesugaringContext;
constructor(state: DesugaringContext) {
super("Adds every public layer to the personal theme", ["layers"], "PreparePersonalTheme");
this._state = state;
}
convert(json: LayoutConfigJson, context: string): { result: LayoutConfigJson; errors?: string[]; warnings?: string[]; information?: string[] } {
if (json.id !== "personal") {
return {result: json}
}
json.layers = Array.from(this._state.sharedLayers.keys()).filter(l => Constants.priviliged_layers.indexOf(l) < 0)
return {result: json};
}
}
class WarnForUnsubstitutedLayersInTheme extends DesugaringStep<LayoutConfigJson> {
constructor() {
super("Generates a warning if a theme uses an unsubstituted layer", ["layers"], "WarnForUnsubstitutedLayersInTheme");
}
convert(json: LayoutConfigJson, context: string): { result: LayoutConfigJson; errors?: string[]; warnings?: string[]; information?: string[] } {
if (json.hideFromOverview === true) {
return {result: json}
}
const warnings = []
for (const layer of json.layers) {
if (typeof layer === "string") {
continue
}
if (layer["builtin"] !== undefined) {
continue
}
if (layer["source"]["geojson"] !== undefined) {
// We turn a blind eye for import layers
continue
}
const wrn = "The theme " + json.id + " has an inline layer: " + layer["id"] + ". This is discouraged."
warnings.push(wrn)
}
return {
result: json,
warnings
};
}
}
export class PrepareTheme extends Fuse<LayoutConfigJson> {
constructor(state: DesugaringContext, options?: {
skipDefaultLayers: false | boolean
}) {
super(
"Fully prepares and expands a theme",
new AddContextToTransltionsInLayout(),
new PreparePersonalTheme(state),
new WarnForUnsubstitutedLayersInTheme(),
new On("layers", new Concat(new SubstituteLayer(state))),
new SetDefault("socialImage", "assets/SocialImage.png", true),
// We expand all tagrenderings first...
new On("layers", new Each(new PrepareLayer(state))),
// Then we apply the override all
new ApplyOverrideAll(),
// And then we prepare all the layers _again_ in case that an override all contained unexpanded tagrenderings!
new On("layers", new Each(new PrepareLayer(state))),
options?.skipDefaultLayers ? new Pass("AddDefaultLayers is disabled due to the set flag") : new AddDefaultLayers(state),
new AddDependencyLayersToTheme(state),
new AddImportLayers(),
new On("layers", new Each(new AddMiniMap(state)))
);
}
}