import { Request, Response } from 'express';
import prisma from '../models/prisma';

// GET /api/admin/testimonials — List all testimonials
export const getAllTestimonials = async (_req: Request, res: Response) => {
    try {
        const items = await prisma.testimonial.findMany({
            orderBy: { createdAt: 'desc' },
        });
        return res.json(items);
    } catch (error) {
        console.error('Get testimonials error:', error);
        return res.status(500).json({ error: 'Internal server error' });
    }
};

// GET /api/admin/testimonials/:id — Get single testimonial
export const getTestimonial = async (req: Request, res: Response) => {
    try {
        const item = await prisma.testimonial.findUnique({
            where: { id: req.params.id },
        });
        if (!item) return res.status(404).json({ error: 'Not found' });
        return res.json(item);
    } catch (error) {
        console.error('Get testimonial error:', error);
        return res.status(500).json({ error: 'Internal server error' });
    }
};

// POST /api/admin/testimonials — Create testimonial
export const createTestimonial = async (req: Request, res: Response) => {
    try {
        const { clientName, company, content, rating, imageUrl, approved } = req.body;

        if (!clientName || !content) {
            return res.status(400).json({ error: 'Client name and content are required' });
        }

        if (rating !== undefined && (rating < 1 || rating > 5)) {
            return res.status(400).json({ error: 'Rating must be between 1 and 5' });
        }

        const item = await prisma.testimonial.create({
            data: {
                clientName,
                company: company || null,
                content,
                rating: rating || 5,
                imageUrl: imageUrl || null,
                approved: approved ?? false,
            },
        });

        return res.status(201).json(item);
    } catch (error) {
        console.error('Create testimonial error:', error);
        return res.status(500).json({ error: 'Internal server error' });
    }
};

// PATCH /api/admin/testimonials/:id — Update testimonial
export const updateTestimonial = async (req: Request, res: Response) => {
    try {
        const { id } = req.params;
        const { clientName, company, content, rating, imageUrl, approved } = req.body;

        const existing = await prisma.testimonial.findUnique({ where: { id } });
        if (!existing) return res.status(404).json({ error: 'Not found' });

        if (rating !== undefined && (rating < 1 || rating > 5)) {
            return res.status(400).json({ error: 'Rating must be between 1 and 5' });
        }

        const item = await prisma.testimonial.update({
            where: { id },
            data: {
                ...(clientName !== undefined && { clientName }),
                ...(company !== undefined && { company }),
                ...(content !== undefined && { content }),
                ...(rating !== undefined && { rating }),
                ...(imageUrl !== undefined && { imageUrl }),
                ...(approved !== undefined && { approved }),
            },
        });

        return res.json(item);
    } catch (error) {
        console.error('Update testimonial error:', error);
        return res.status(500).json({ error: 'Internal server error' });
    }
};

// PATCH /api/admin/testimonials/:id/toggle — Toggle approval status
export const toggleApproval = async (req: Request, res: Response) => {
    try {
        const { id } = req.params;

        const existing = await prisma.testimonial.findUnique({ where: { id } });
        if (!existing) return res.status(404).json({ error: 'Not found' });

        const item = await prisma.testimonial.update({
            where: { id },
            data: { approved: !existing.approved },
        });

        return res.json(item);
    } catch (error) {
        console.error('Toggle approval error:', error);
        return res.status(500).json({ error: 'Internal server error' });
    }
};

// DELETE /api/admin/testimonials/:id — Delete testimonial
export const deleteTestimonial = async (req: Request, res: Response) => {
    try {
        const { id } = req.params;

        const existing = await prisma.testimonial.findUnique({ where: { id } });
        if (!existing) return res.status(404).json({ error: 'Not found' });

        await prisma.testimonial.delete({ where: { id } });

        return res.json({ message: 'Deleted successfully' });
    } catch (error) {
        console.error('Delete testimonial error:', error);
        return res.status(500).json({ error: 'Internal server error' });
    }
};