import type { HydraCollection } from '~/utils/api'
import { extractHydraMembers } from '~/utils/api'

export type AuditLogAction = 'create' | 'update' | 'delete'

export type AuditLogItem = {
    id: string
    '@id'?: string
    entityType: string
    entityId: string
    action: AuditLogAction
    changes: Record<string, unknown>
    performedBy: string
    performedAt: string
    ipAddress: string | null
    requestId: string | null
}

export type AuditLogQuery = {
    page?: number
    entityType?: string
    action?: AuditLogAction
}

export type AuditLogPage = {
    items: AuditLogItem[]
    totalItems: number
}

export type AuditLogEntityTypes = {
    '@id'?: string
    entityTypes: string[]
}

export function useAuditLogService() {
    const api = useApi()

    async function list(params: AuditLogQuery = {}): Promise<AuditLogPage> {
        const query: Record<string, unknown> = {}
        if (params.page !== undefined) {
            query.page = params.page
        }
        if (params.entityType) {
            query.entity_type = params.entityType
        }
        if (params.action) {
            query.action = params.action
        }

        const data = await api.get<HydraCollection<AuditLogItem>>('/audit-logs', query)
        return {
            items: extractHydraMembers(data),
            totalItems: data['hydra:totalItems'] ?? data['totalItems'] ?? 0,
        }
    }

    async function entityTypes(): Promise<string[]> {
        // `/audit-log-entity-types` is a single API Platform item resource
        // (not a hydra collection): it returns `{ entityTypes: string[] }`.
        const data = await api.get<AuditLogEntityTypes>('/audit-log-entity-types')
        return data.entityTypes ?? []
    }

    return { list, entityTypes }
}