import { create } from 'zustand'

const useProjectStore = create((set, get) => ({
  projects: [],
  loading:  false,
  error:    null,

  setProjects: (projects) => set({ projects }),
  setLoading:  (loading)  => set({ loading }),
  setError:    (error)    => set({ error }),

  addProject: (p) => set((s) => ({ projects: [p, ...s.projects] })),

  updateProject: (updated) => set((s) => ({
    projects: s.projects.map(p => p.id === updated.id ? { ...updated, deliverables: p.deliverables } : p),
  })),

  removeProject: (id) => set((s) => ({ projects: s.projects.filter(p => p.id !== id) })),

  addDeliverable: (d) => set((s) => ({
    projects: s.projects.map(p => p.id === d.project_id
      ? { ...p, deliverables: [...(p.deliverables||[]), d].sort((a,b) => new Date(a.due_date)-new Date(b.due_date)) }
      : p
    ),
  })),

  updateDeliverable: (updated) => set((s) => ({
    projects: s.projects.map(p => p.id === updated.project_id
      ? { ...p, deliverables: p.deliverables.map(d => d.id === updated.id ? updated : d) }
      : p
    ),
  })),

  removeDeliverable: (id) => set((s) => ({
    projects: s.projects.map(p => ({ ...p, deliverables: (p.deliverables||[]).filter(d => d.id !== id) })),
  })),

  getProjectById: (id) => get().projects.find(p => p.id === id),
}))

export default useProjectStore