/**
 * Pricing Data Manager - Handles API calls and data extraction
 */
class PricingDataManager {
    constructor(currentOffering) {
        this.currentOffering = currentOffering;
        this.pricingData = null;
        this.storagePrice = null;
        this.replicaInfo = null;
        this.addonsData = null;
    }

    // Load pricing data from API endpoint
    async loadPricingData() {
        try {
            const response = await fetch(`/offering/${this.currentOffering.provider_slug}/${this.currentOffering.service_slug}/?pricing=json`);

            if (!response.ok) {
                throw new Error(`Failed to load pricing data: ${response.status} ${response.statusText}`);
            }

            const data = await response.json();

            this.pricingData = data.pricing || data;

            // Extract addons data from the plans - addons are embedded in each plan
            this.extractAddonsData();

            // Extract storage price from the first available plan
            this.extractStoragePrice();

            return this.pricingData;
        } catch (error) {
            console.error('Error loading pricing data:', error);
            throw error;
        }
    }

    // Extract replica information and storage price from pricing data
    extractStoragePrice() {
        if (!this.pricingData) return;

        // Find the first plan with storage pricing data and replica info
        for (const groupName of Object.keys(this.pricingData)) {
            const group = this.pricingData[groupName];
            for (const serviceLevel of Object.keys(group)) {
                const plans = group[serviceLevel];
                if (plans.length > 0 && plans[0].storage_price !== undefined) {
                    this.storagePrice = parseFloat(plans[0].storage_price);
                    this.replicaInfo = {
                        ha_replica_min: plans[0].ha_replica_min || 1,
                        ha_replica_max: plans[0].ha_replica_max || 1
                    };
                    return;
                }
            }
        }
    }

    // Extract addons data from pricing plans
    extractAddonsData() {
        if (!this.pricingData) return;

        this.addonsData = {};

        // Extract addons from the first available plan for each service level
        Object.keys(this.pricingData).forEach(groupName => {
            const group = this.pricingData[groupName];
            Object.keys(group).forEach(serviceLevel => {
                const plans = group[serviceLevel];
                if (plans.length > 0) {
                    // Use the first plan's addon data for this service level
                    const plan = plans[0];
                    const allAddons = [];

                    // Add mandatory addons
                    if (plan.mandatory_addons) {
                        plan.mandatory_addons.forEach(addon => {
                            allAddons.push({
                                ...addon,
                                is_mandatory: true,
                                addon_type: addon.addon_type === "Base Fee" ? "BASE_FEE" : "UNIT_RATE"
                            });
                        });
                    }

                    // Add optional addons
                    if (plan.optional_addons) {
                        plan.optional_addons.forEach(addon => {
                            allAddons.push({
                                ...addon,
                                is_mandatory: false,
                                addon_type: addon.addon_type === "Base Fee" ? "BASE_FEE" : "UNIT_RATE"
                            });
                        });
                    }

                    this.addonsData[serviceLevel] = allAddons;
                }
            });
        });
    }

    // Get available service levels from pricing data
    getAvailableServiceLevels() {
        if (!this.pricingData) return new Set();

        const availableServiceLevels = new Set();
        Object.keys(this.pricingData).forEach(groupName => {
            const group = this.pricingData[groupName];
            Object.keys(group).forEach(serviceLevel => {
                availableServiceLevels.add(serviceLevel);
            });
        });

        return availableServiceLevels;
    }

    // Get maximum CPU and memory values from all plans
    getSliderMaximums() {
        if (!this.pricingData) return { maxCpus: 0, maxMemory: 0 };

        let maxCpus = 0;
        let maxMemory = 0;

        // Find maximum CPU and memory across all plans
        Object.keys(this.pricingData).forEach(groupName => {
            const group = this.pricingData[groupName];
            Object.keys(group).forEach(serviceLevel => {
                group[serviceLevel].forEach(plan => {
                    const planCpus = parseFloat(plan.vcpus);
                    const planMemory = parseFloat(plan.ram);

                    if (planCpus > maxCpus) maxCpus = planCpus;
                    if (planMemory > maxMemory) maxMemory = planMemory;
                });
            });
        });

        return { maxCpus, maxMemory };
    }

    // Get all plans for a specific service level
    getPlansForServiceLevel(serviceLevel) {
        if (!this.pricingData || !serviceLevel) return [];

        const availablePlans = [];
        Object.keys(this.pricingData).forEach(groupName => {
            const group = this.pricingData[groupName];
            if (group[serviceLevel]) {
                group[serviceLevel].forEach(plan => {
                    availablePlans.push({
                        ...plan,
                        groupName: groupName
                    });
                });
            }
        });

        // Sort plans by vCPU, then by RAM
        availablePlans.sort((a, b) => {
            if (parseFloat(a.vcpus) !== parseFloat(b.vcpus)) {
                return parseFloat(a.vcpus) - parseFloat(b.vcpus);
            }
            return parseFloat(a.ram) - parseFloat(b.ram);
        });

        return availablePlans;
    }

    // Getters
    getPricingData() {
        return this.pricingData;
    }

    getStoragePrice() {
        return this.storagePrice;
    }

    getReplicaInfo() {
        return this.replicaInfo;
    }

    getAddonsData() {
        return this.addonsData;
    }
}

// Export for use in other modules
window.PricingDataManager = PricingDataManager;