import { showToast, getNSFWLevelName, openExampleImagesFolder } from '../../utils/uiHelpers.js';
import { modalManager } from '../../managers/ModalManager.js';
import { state } from '../../state/index.js';
import { getModelApiClient, resetAndReload } from '../../api/modelApiFactory.js';
import { bulkManager } from '../../managers/BulkManager.js';
import { MODEL_CONFIG } from '../../api/apiConfig.js';
import { translate } from '../../utils/i18nHelpers.js';
import { getNsfwLevelSelector } from '../shared/NsfwLevelSelector.js';

// Mixin with shared functionality for LoraContextMenu and CheckpointContextMenu
export const ModelContextMenuMixin = {
    // NSFW Selector methods
    initNSFWSelector() {
        if (this._nsfwSelectorInitialized) {
            return;
        }

        const selector = getNsfwLevelSelector();
        if (!selector) {
            console.warn('NSFW selector element not found');
            return;
        }

        this._nsfwSelectorInitialized = true;
        this._nsfwSelector = selector;
    },

    resetNSFWSelectorState() {
        // maintained for compatibility; no-op with shared selector
    },

    showNSFWLevelSelector(x, y, card) {
        this.initNSFWSelector();
        const selector = this._nsfwSelector || getNsfwLevelSelector();

        if (!selector) {
            console.warn('NSFW selector not available');
            return;
        }

        // Get current NSFW level
        let currentLevel = 0;
        try {
            const metaData = JSON.parse(card.dataset.meta || '{}');
            currentLevel = metaData.preview_nsfw_level || 0;

            // Update if we have no recorded level but have a dataset attribute
            if (!currentLevel && card.dataset.nsfwLevel) {
                currentLevel = parseInt(card.dataset.nsfwLevel, 10) || 0;
            }
        } catch (err) {
            console.error('Error parsing metadata:', err);
        }

        const filePath = card.dataset.filepath;
        selector.show({
            currentLevel,
            onSelect: async (level) => {
                if (!filePath) return false;
                try {
                    await this.saveModelMetadata(filePath, { preview_nsfw_level: level });
                    showToast('toast.contextMenu.contentRatingSet', { level: getNSFWLevelName(level) }, 'success');
                    return true;
                } catch (error) {
                    showToast('toast.contextMenu.contentRatingFailed', { message: error.message }, 'error');
                    return false;
                }
            },
            onClose: () => this.resetNSFWSelectorState(),
        });
    },

    // Civitai re-linking methods
    showRelinkCivitaiModal() {
        const filePath = this.currentCard.dataset.filepath;
        if (!filePath) return;
        
        // Set up confirm button handler
        const confirmBtn = document.getElementById('confirmRelinkBtn');
        const urlInput = document.getElementById('civitaiModelUrl');
        const errorDiv = document.getElementById('civitaiModelUrlError');
        
        // Remove previous event listener if exists
        if (this._boundRelinkHandler) {
            confirmBtn.removeEventListener('click', this._boundRelinkHandler);
        }
        
        // Create new bound handler
        this._boundRelinkHandler = async () => {
            const url = urlInput.value.trim();
            const { modelId, modelVersionId } = this.extractModelVersionId(url);
            
            if (!modelId) {
                errorDiv.textContent = 'Invalid URL format. Must include model ID.';
                return;
            }
            
            errorDiv.textContent = '';
            modalManager.closeModal('relinkCivitaiModal');
            
            try {
                state.loadingManager.showSimpleLoading('Re-linking to Civitai...');
                
                const endpoint = this.modelType === 'checkpoint' ? 
                    '/api/lm/checkpoints/relink-civitai' : 
                    '/api/lm/loras/relink-civitai';
                
                const response = await fetch(endpoint, {
                    method: 'POST',
                    headers: {
                        'Content-Type': 'application/json'
                    },
                    body: JSON.stringify({
                        file_path: filePath,
                        model_id: modelId,
                        model_version_id: modelVersionId
                    })
                });
                
                if (!response.ok) {
                    throw new Error(`Failed to re-link model: ${response.statusText}`);
                }
                
                const data = await response.json();
                
                if (data.success) {
                    showToast('toast.contextMenu.relinkSuccess', {}, 'success');
                    // Reload the current view to show updated data
                    await this.resetAndReload();
                } else {
                    throw new Error(data.error || 'Failed to re-link model');
                }
            } catch (error) {
                console.error('Error re-linking model:', error);
                showToast('toast.contextMenu.relinkFailed', { message: error.message }, 'error');
            } finally {
                state.loadingManager.hide();
            }
        };
        
        // Set new event listener
        confirmBtn.addEventListener('click', this._boundRelinkHandler);
        
        // Clear previous input
        urlInput.value = '';
        errorDiv.textContent = '';
        
        // Show modal
        modalManager.showModal('relinkCivitaiModal');
        
        // Auto-focus the URL input field after modal is shown
        setTimeout(() => urlInput.focus(), 50);
    },

    extractModelVersionId(url) {
        try {
            // Handle all three URL formats:
            // 1. https://civitai.com/models/649516
            // 2. https://civitai.com/models/649516?modelVersionId=726676
            // 3. https://civitai.com/models/649516/cynthia-pokemon-diamond-and-pearl-pdxl-lora?modelVersionId=726676
            
            const parsedUrl = new URL(url);
            
            // Extract model ID from path
            const pathMatch = parsedUrl.pathname.match(/\/models\/(\d+)/);
            const modelId = pathMatch ? pathMatch[1] : null;
            
            // Extract model version ID from query parameters
            const modelVersionId = parsedUrl.searchParams.get('modelVersionId');
            
            return { modelId, modelVersionId };
        } catch (e) {
            return { modelId: null, modelVersionId: null };
        }
    },

    parseModelId(value) {
        if (value === undefined || value === null || value === '') {
            return null;
        }

        const parsed = Number.parseInt(value, 10);
        return Number.isNaN(parsed) ? null : parsed;
    },

    getModelIdFromCard(card) {
        if (!card) {
            return null;
        }

        if (card.dataset?.meta) {
            try {
                const meta = JSON.parse(card.dataset.meta);
                const metaValue = this.parseModelId(meta?.modelId);
                if (metaValue !== null) {
                    return metaValue;
                }
            } catch (error) {
                console.warn('Unable to parse card metadata for model ID', error);
            }
        }

        return null;
    },

    async checkUpdatesForCurrentModel() {
        const card = this.currentCard;
        if (!card) {
            return;
        }

        const modelId = this.getModelIdFromCard(card);
        const typeConfig = MODEL_CONFIG[this.modelType] || {};
        const typeLabel = (typeConfig.displayName || 'Model').toLowerCase();

        if (modelId === null) {
            showToast('toast.models.bulkUpdatesMissing', { type: typeLabel }, 'warning');
            return;
        }

        const apiClient = getModelApiClient();

        const loadingMessage = translate(
            'toast.models.bulkUpdatesChecking',
            { count: 1, type: typeLabel },
            `Checking selected ${typeLabel}(s) for updates...`
        );
        state.loadingManager.showSimpleLoading(loadingMessage);

        try {
            const response = await apiClient.refreshUpdatesForModels([modelId]);
            const records = Array.isArray(response?.records) ? response.records : [];
            const updatesCount = records.length;

            if (updatesCount > 0) {
                showToast('toast.models.bulkUpdatesSuccess', { count: updatesCount, type: typeLabel }, 'success');
            } else {
                showToast('toast.models.bulkUpdatesNone', { type: typeLabel }, 'info');
            }

            const resetFn = this.resetAndReload || resetAndReload;
            if (typeof resetFn === 'function') {
                await resetFn(false);
            }
        } catch (error) {
            console.error('Error checking updates for model:', error);
            showToast(
                'toast.models.bulkUpdatesFailed',
                { type: typeLabel, message: error?.message ?? 'Unknown error' },
                'error'
            );
        } finally {
            state.loadingManager.hide();
            state.loadingManager.restoreProgressBar();
        }
    },

    // Common action handlers
    handleCommonMenuActions(action) {
        switch(action) {
            case 'preview':
                openExampleImagesFolder(this.currentCard.dataset.sha256);
                return true;
            case 'download-examples':
                this.downloadExampleImages();
                return true;
            case 'civitai':
                if (this.currentCard.dataset.from_civitai === 'true') {
                    if (this.currentCard.querySelector('.fa-globe')) {
                        this.currentCard.querySelector('.fa-globe').click();
                    } else {
                        showToast('toast.contextMenu.fetchMetadataFirst', {}, 'info');
                    }
                } else {
                    showToast('toast.contextMenu.noCivitaiInfo', {}, 'info');
                }
                return true;
            case 'relink-civitai':
                this.showRelinkCivitaiModal();
                return true;
            case 'set-nsfw':
                this.showNSFWLevelSelector(null, null, this.currentCard);
                return true;
            case 'check-updates':
                this.checkUpdatesForCurrentModel();
                return true;
            default:
                return false;
        }
    },

    // Download example images method
    async downloadExampleImages() {
        const modelHash = this.currentCard.dataset.sha256;
        if (!modelHash) {
            showToast('toast.contextMenu.missingHash', {}, 'error');
            return;
        }

        try { 
            const apiClient = getModelApiClient();
            await apiClient.downloadExampleImages([modelHash]);
        } catch (error) {
            console.error('Error downloading example images:', error);
        }
    }
};