import useDatabase from '~/composables/useDatabase';
import { explorerContentTable } from '~/db/schema';
import type { NavigationItem } from '~/schemas/navigation';
import type { ProjectItem, Project } from '~/schemas/project';
import { hasPermissions } from '~/shared/auth.util';

export default defineEventHandler(async (e) => {
    const { user } = await getUserSession(e);

    if(!user || !hasPermissions(user.permissions, ['editor', 'admin']))
    {
        throw createError({
            statusCode: 401,
            statusMessage: 'Unauthorized',
        });
    }

    const db = useDatabase();
    const content = db.select({
        path: explorerContentTable.path,
        type: explorerContentTable.type,
        owner: explorerContentTable.owner,
        title: explorerContentTable.title,
        navigable: explorerContentTable.navigable,
        private: explorerContentTable.private,
        order: explorerContentTable.order,
    }).from(explorerContentTable).prepare().all();

    if(content.length > 0)
    {
        const project: Project = {
            items: [],
        }
        
        for(const item of content.filter(e => !!e))
        {
            addChild(project.items, item);
        }

        return project;
    }
    
    setResponseStatus(e, 404);
    return;
});

function addChild(arr: ProjectItem[], e: NavigationItem): void
{
    const parent = arr.find(f => e.path.startsWith(f.path));

    if(parent)
    {
        if(!parent.children)
            parent.children = [];

        addChild(parent.children, e);
    }
    else
    {
        arr.push({ 
            path: e.path,
            parent: e.path.substring(0, e.path.lastIndexOf('/')),
            name: e.path.substring(e.path.lastIndexOf('/') + 1),
            title: e.title,
            type: e.type,
            navigable: e.navigable,
            private: e.private,
            order: e.order,
        });
        arr.sort((a, b) => {
            if(a.order !== b.order)
                return a.order - b.order;
            return a.title.localeCompare(b.title);
        });
    }
}