window.TimeBillingReview = (() => {
    const labels={draft:'Kladde',operations:'Drift',development:'Udvikling'};
    const needsReview=entry=>Object.hasOwn(labels,entry.billing_method || entry._billing_method || '');
    const badge=entry=>needsReview(entry)?`<span class="badge text-bg-warning">${labels[entry.billing_method || entry._billing_method]} · Chefkontrol</span>`:'';
    const methods={invoice:'Faktura',prepaid:'Klippekort',subscription:'Fastpris',fixed_price:'Fastpris',internal:'Intern tid',non_billable:'Ikke fakturerbar',draft:'Kladde',operations:'Drift',development:'Udvikling'};
    const settled=entry=>entry.status==='billed'||(entry.workflow_active===true&&entry.status==='approved')||!!entry.economy_settled_at||!!entry.economy_order_draft_id||!!entry.billed_via_thehub_id;
    const canChoose=entry=>!settled(entry)&&(entry.workflow_active===true?entry.workflow_can_override===true:needsReview(entry));
    const displayBadge=entry=>{
        const method=entry.selected_billing_method||entry.workflow_decision?.method||entry.billing_method||'draft';
        const text=method==='manual_review'?'Manuel vurdering':methods[method]||'Afregning afventer';
        return `<span class="badge text-bg-secondary">${text}${entry.workflow_stale?' · skal genberegnes':''}</span>`;
    };
    async function choose(entry) {
        if(!canChoose(entry))throw new Error('Afregningen kan ikke ændres for denne tidsregistrering.');
        if(entry.workflow_active!==true)return approve(entry);
        const optionsResponse=await fetch(`/api/v1/timetracking/time/${Number(entry.id)}/settlement-options`,{credentials:'include'});
        if(!optionsResponse.ok)throw new Error('Afregningsmuligheder kunne ikke hentes');
        const data=await optionsResponse.json();
        const decisionResponse=await fetch(`/api/v1/timetracking/time/${Number(entry.id)}/workflow-decision`,{credentials:'include'});
        if(!decisionResponse.ok)throw new Error('Afregningsbeslutningen kunne ikke hentes');
        const history=await decisionResponse.json(),current=history.current;
        if(current?.status==='settled')throw new Error('Afregnet tid kræver en særskilt korrektion.');
        const host=document.createElement('div');host.className='modal fade';host.tabIndex=-1;
        host.innerHTML='<div class="modal-dialog"><form class="modal-content"><div class="modal-header"><h5 class="modal-title">Vælg afregning</h5><button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Luk"></button></div><div class="modal-body"><p class="small text-muted">Valget gemmes med begrundelse. Bogholderiet godkender og afregner tiden.</p><label class="form-label">Afregning</label><select class="form-select" required></select><label class="form-label mt-3">Begrundelse</label><textarea class="form-control" minlength="3" maxlength="2000" required></textarea><div class="small mt-2 text-danger" role="status"></div></div><div class="modal-footer"><button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Annuller</button><button type="submit" class="btn btn-primary">Gem afregningsvalg</button></div></form></div>';
        const select=host.querySelector('select');select.add(new Option('Faktura','invoice'));select.add(new Option('Intern tid','internal'));select.add(new Option('Ikke fakturerbar','non_billable'));
        (data.prepaid_cards||[]).forEach(c=>select.add(new Option('Klippekort '+(c.card_number||c.id),'card_'+c.id)));
        (data.agreements||[]).forEach(a=>select.add(new Option('Fastpris '+(a.agreement_number||a.id),'fpa_'+a.id)));
        const details=current?.details||{},billing=details.billing||details.decision||{};
        select.value=current?.method==='prepaid'?'card_'+billing.card_id:current?.method==='subscription'?'fpa_'+billing.agreement_id:current?.method||entry.selected_billing_method||'invoice';
        if(!select.value)select.value='invoice';
        document.body.append(host);const modal=new bootstrap.Modal(host);
        return new Promise(resolve=>{
            let changed=false;
            host.addEventListener('hidden.bs.modal',()=>{modal.dispose();host.remove();resolve(changed);},{once:true});
            host.querySelector('form').onsubmit=async event=>{
                event.preventDefault();const reason=host.querySelector('textarea').value.trim();
                if(reason.length<3){host.querySelector('[role=status]').textContent='Angiv en kort begrundelse.';return;}
                const value=select.value,payload={method:value,reason},button=host.querySelector('[type=submit]');button.disabled=true;
                if(value.startsWith('card_')){payload.method='prepaid';payload.card_id=Number(value.slice(5));}
                if(value.startsWith('fpa_')){payload.method='subscription';payload.agreement_id=Number(value.slice(4));}
                if(billing.product_number)payload.product_number=billing.product_number;
                try{const response=await fetch(`/api/v1/timetracking/time/${Number(entry.id)}/workflow-override`,{method:'POST',credentials:'include',headers:{'Content-Type':'application/json'},body:JSON.stringify(payload)});const result=await response.json().catch(()=>({}));if(!response.ok)throw new Error(typeof result.detail==='string'?result.detail:'Afregningsvalget kunne ikke gemmes');changed=true;modal.hide();}catch(error){host.querySelector('[role=status]').textContent=error.message;button.disabled=false;}
            };modal.show();
        });
    }
    async function approve(entry,hours) {
        const response=await fetch(`/api/v1/timetracking/time/${Number(entry.id)}/settlement-options`,{credentials:'include'});
        if(!response.ok)throw new Error('Afregningsmuligheder kunne ikke hentes');
        const data=await response.json();
        const host=document.createElement('div');host.className='modal fade';host.tabIndex=-1;
        host.innerHTML='<div class="modal-dialog"><form class="modal-content"><div class="modal-header"><h5 class="modal-title">Chefkontrol – vælg afregning</h5><button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Luk"></button></div><div class="modal-body"><p data-label></p><label class="form-label">Endelig afregning</label><select class="form-select" required><option value="">Vælg afregning…</option></select><div class="small mt-3" role="status"></div></div><div class="modal-footer"><button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Annuller</button><button type="submit" class="btn btn-success">Godkend</button></div></form></div>';
        host.querySelector('[data-label]').textContent=labels[entry.billing_method || entry._billing_method]+' · '+(entry.description || entry.beskrivelse || 'Tidsregistrering');
        const select=host.querySelector('select');select.add(new Option('Faktura','invoice'));
        (data.prepaid_cards||[]).forEach(c=>select.add(new Option(`Klippekort #${c.card_number || c.id}`,`card_${c.id}`)));
        (data.agreements||[]).forEach(a=>select.add(new Option(`Fastpris #${a.agreement_number || a.id}`,`fpa_${a.id}`)));
        document.body.append(host);const modal=new bootstrap.Modal(host);
        return new Promise(resolve=>{
            let approved=false;
            host.addEventListener('hidden.bs.modal',()=>{modal.dispose();host.remove();resolve(approved);},{once:true});
            host.querySelector('form').onsubmit=async event=>{
                event.preventDefault();const button=host.querySelector('[type=submit]');button.disabled=true;
                const value=select.value,payload={billing_method:value};
                if(value.startsWith('card_')){payload.billing_method='prepaid';payload.prepaid_card_id=Number(value.slice(5));}
                if(value.startsWith('fpa_')){payload.billing_method='subscription';payload.fixed_price_agreement_id=Number(value.slice(4));}
                if(Number.isFinite(Number(hours))&&Number(hours)>0)payload.fakturerbar_tid_min=Math.round(Number(hours)*60);
                try {
                    const result=await fetch(`/api/v1/timetracking/time/${Number(entry.id)}/approve`,{method:'POST',credentials:'include',headers:{'Content-Type':'application/json'},body:JSON.stringify(payload)});
                    const body=await result.json().catch(()=>({}));if(!result.ok)throw new Error(body.detail || 'Kunne ikke godkende');
                    approved=true;modal.hide();
                }catch(error){host.querySelector('[role=status]').textContent=error.message;button.disabled=false;}
            };modal.show();
        });
    }
    return {needsReview,badge,approve,choose,canChoose,displayBadge};
})();