import { fmgPageValues } from "@/router/router-constants/fmgPage-values";
import { storeMutations } from "@/constants/store-mutations.js";
import { damageLocationsSelected } from "@/constants/damage-locations-selected";
import { navigationScenarios } from "../router/router-constants/navigation-scenarios";
import { storeActions } from "@/constants/store-actions";
import { navigateToHeritageFunnel } from "@/helpers/heritage-integration/navigation-helper";
import baseMixin from "@/mixins/base-mixin.js";
import store from "@/store";

export default {
    methods: {
        hasPartQuestions(partsOrQuestions) {
            return partsOrQuestions?.some(pq => pq.partQuestions?.length > 0);
        },
        hasGlassLocationWithMultipleParts(partsOrQuestions) {
            return partsOrQuestions?.some(pq => pq.parts?.length > 1);
        },
        hasChildPartQuestions(partsOrQuestions) {
            return partsOrQuestions?.some(pq => {
                return pq.parts?.some(part => part.childPartQuestions?.length > 0);
            });
        },
        hasCapabilityQuestions(partsOrQuestions) {
            return partsOrQuestions?.some(pq => {
                return pq.parts?.some(part => part.requiresCapabilityQuestions === true);
            });
        },

        // method to only include keys listed for lineItems.glassParts in 
        // https://safelite.atlassian.net/wiki/spaces/DC/pages/17137665/Catalog+Front-End+State#glassParts
        reducedGlassPartsArray(glassParts) {
            const reducedGlassParts = [];
            glassParts.forEach((glass) => {
                if (Array.isArray(glass.parts) && glass.parts.length === 1) {
                    const singlePart = glass.parts[0];
                    reducedGlassParts.push({
                        partNumber: singlePart.partNumber,
                        description: singlePart.description,
                        color: singlePart.color,
                        requiresRecalibration: singlePart.requiresRecalibration,
                        requiresCapabilityQuestions: singlePart.requiresCapabilityQuestions,
                        recalibrationType: singlePart.recalibrationType,
                        childParts: singlePart.childParts,
                        price: singlePart.price,
                    });
                }
            });
            return reducedGlassParts;
        },
        comparePageIndices(currentPage, fmgPage) {
            const orderedVehicleQuestionPages = [
                fmgPageValues.PART_QUESTIONS,
                fmgPageValues.VEHICLE_PARTS,
                fmgPageValues.MOLDING_QUESTIONS,
                fmgPageValues.CAPABILITY_QUESTIONS,
                fmgPageValues.QUOTE
            ]

            return orderedVehicleQuestionPages.indexOf(currentPage) - orderedVehicleQuestionPages.indexOf(fmgPage);
        },
        currentPageComesBeforePage(currentPage = this.$route.query.fmgPage, fmgPage) {
            return this.comparePageIndices(currentPage, fmgPage) < 0;
        },
        currentPageComesAfterPage(currentPage = this.$route.query.fmgPage, fmgPage) {
            return this.comparePageIndices(currentPage, fmgPage) > 0;
        },
        // Can't use `this` because navigateForward is also called from vin-pages-mixin
        async navigateForward(partsOrQuestions, vm) {
            const self = vm ?? this;
            const currentPage = self.$route.query.fmgPage;

            const hasPartQuestions = this.hasPartQuestions(partsOrQuestions)
            const hasGlassLocationWithMultipleParts = this.hasGlassLocationWithMultipleParts(partsOrQuestions);
            const hasChildPartQuestions = this.hasChildPartQuestions(partsOrQuestions);
            const hasCapabilityQuestions = this.hasCapabilityQuestions(partsOrQuestions);

            if (hasPartQuestions && this.currentPageComesBeforePage(currentPage, fmgPageValues.PART_QUESTIONS)) {
                self.$router.navigateWithSaving(self.navigationScenarios.HAS_PART_QUESTIONS, self.$route, {}, {}, { partsOrQuestions: partsOrQuestions });
            }
            else if (hasGlassLocationWithMultipleParts && this.currentPageComesBeforePage(currentPage, fmgPageValues.VEHICLE_PARTS)) {
                // if multiple parts on any glass
                // go to vehicle-parts page and pass the partsData
                self.$router.navigateWithSaving(self.navigationScenarios.HAS_MULTIPLE_PARTS_TO_CHOOSE, self.$route, {}, {}, { partsOrQuestions: partsOrQuestions });
            } else if (hasChildPartQuestions && this.currentPageComesBeforePage(currentPage, fmgPageValues.MOLDING_QUESTIONS)) {
                // if any childpart questions
                // go to molding-questions page and pass the partsData
                self.$router.navigateWithSaving(self.navigationScenarios.HAS_MOLDING_QUESTIONS, self.$route, {}, {}, { partsOrQuestions: partsOrQuestions });
            } else if (hasCapabilityQuestions && this.currentPageComesBeforePage(currentPage, fmgPageValues.CAPABILITY_QUESTIONS)) {
                // if has capability questions
                // go to capability-questions page and pass the partsData

                // mimic part-questions page data for consistency
                for (let partOrQuestion of partsOrQuestions) {
                    if (this.hasCapabilityQuestions([partOrQuestion])) {
                        let capabilityQuestionsForGlassLocation = (await baseMixin.methods.dispatchStoreAction(storeActions.GET_CAPABILITY_QUESTIONS, {
                            carId: store.getters.vehicle.carId,
                            partNumber: partOrQuestion.parts[0].partNumber
                        })).data;

                        capabilityQuestionsForGlassLocation.forEach(question => {
                            question.answers = question.answers.map(answer => {
                                return {
                                    ...answer,
                                    answerResult: answer.answerResult1
                                }
                            })
                        })

                        partOrQuestion.capabilityQuestions = capabilityQuestionsForGlassLocation;
                    }
                }

                self.$router.navigateWithSaving(self.navigationScenarios.HAS_CAPABILITY_QUESTIONS, self.$route, {}, {}, { partsOrQuestions });
            } else {
                // if single parts only
                const collectedGlassParts = this.reducedGlassPartsArray(partsOrQuestions);
                // save to store lineItems.glassParts
                // TODO KO
                self.$store.commit(storeMutations.UPDATE_GLASS_PARTS, collectedGlassParts);

                self.$refs.loadingModal.showModal();
                navigateToHeritageFunnel();
            }
        },
        backButtonAction() {
            const partsOrQuestions = (this.$store.getters.pageData(fmgPageValues.PART_QUESTIONS) ?? this.$store.getters.pageData(fmgPageValues.VEHICLE_PARTS))?.partsOrQuestions;
            const hasPartQuestions = this.hasPartQuestions(partsOrQuestions);
            const hasGlassLocationWithMultipleParts = this.hasGlassLocationWithMultipleParts(partsOrQuestions);
            const hasChildPartQuestions = this.hasChildPartQuestions(partsOrQuestions);
            const hasCapabilityQuestions = this.hasCapabilityQuestions(partsOrQuestions);
            let backNavigationScenario = navigationScenarios.CLICKED_BACK_WITH_NO_QUESTIONS;

            const currentPage = this.$route.query.fmgPage;
            if (hasCapabilityQuestions && this.currentPageComesAfterPage(currentPage, fmgPageValues.CAPABILITY_QUESTIONS)) {
                backNavigationScenario = navigationScenarios.CLICKED_BACK_WITH_CAPABILITY_QUESTIONS;
            }
            else if (hasChildPartQuestions && this.currentPageComesAfterPage(currentPage, fmgPageValues.MOLDING_QUESTIONS)) {
                backNavigationScenario = navigationScenarios.CLICKED_BACK_WITH_MOLDING_QUESTIONS;
            }
            else if (hasGlassLocationWithMultipleParts && this.currentPageComesAfterPage(currentPage, fmgPageValues.VEHICLE_PARTS)) {
                backNavigationScenario = navigationScenarios.CLICKED_BACK_WITH_MULTIPLE_PARTS_TO_CHOOSE;
            }
            else if (hasPartQuestions && this.currentPageComesAfterPage(currentPage, fmgPageValues.PART_QUESTIONS)) {
                backNavigationScenario = navigationScenarios.CLICKED_BACK_WITH_PART_QUESTIONS;
            }

            this.$router.navigateWithoutSaving(
                backNavigationScenario,
                this.$route
            );
        }
    }
}