const Permission = require('./permissionModel')
const permissionsList = require('./permissionList')
const AppError = require('../../globalErrorHandler/AppError')

module.exports.syncPermissions = async () => {
    try {
        let createdCount = 0
        let updatedCount = 0

        for (const item of permissionsList) {
            const existing = await Permission.findOne({ key: item.key })
            if (!existing) {
                await Permission.create({
                    englishName: item.englishName,
                    nativeName: item.nativeName,
                    key: item.key,
                    category: item.category,
                    isActive: true,
                })
                createdCount++
            } else {
                let changed = false
                if (existing.englishName !== item.englishName) {
                    existing.englishName = item.englishName
                    changed = true
                }
                if (existing.nativeName !== item.nativeName) {
                    existing.nativeName = item.nativeName
                    changed = true
                }
                if (existing.category !== item.category) {
                    existing.category = item.category
                    changed = true
                }
                if (changed) {
                    await existing.save()
                    updatedCount++
                }
            }
        }

        console.log(`[Permissions] Sync complete: ${createdCount} created, ${updatedCount} updated.`)
    } catch (error) {
        console.error('[Permissions] Error during sync:', error.message)
    }
}

module.exports.getAllPermissions = async () => {
    return Permission.find({}).sort({ category: 1, englishName: 1 })
}

module.exports.createPermission = async (data) => {
    return await Permission.create(data)
}

module.exports.getPermission = async (permissionId) => {
    const permission = await Permission.findById(permissionId)

    if (!permission) {
        throw AppError('NoPermissionFound', 404, {})
    }

    return permission
}

module.exports.updatePermission = async (permissionId, data) => {
    const permission = await Permission.findOneAndUpdate({ _id: permissionId }, data, { new: true })

    if (!permission) {
        throw AppError('NoPermissionFound', 404, {})
    }

    return permission
}

module.exports.deletePermission = async (permissionId) => {
    const permission = await Permission.findOneAndDelete({ _id: permissionId })

    if (!permission) {
        throw AppError('NoPermissionFound', 404, {})
    }

    return null
}