//
//  ActionExecutor.swift
//  Poche
//
//  Author:  Simon-Pierre Boucher
//  Contact: contact@spboucher.ai
//

import Foundation

/// Performs confirmed side effects against the bridges. Constraint: only
/// ConfirmCenter may call this type — tools and views never touch bridges
/// or the store's write API directly (CLAUDE.md §3, §10).
@MainActor
struct ActionExecutor {
    let bridge: EventKitBridge
    let store: PocheStore

    /// Returns a short, truthful past-tense summary — safe to show because
    /// by the time it exists, the write has actually happened.
    func execute(_ payload: PendingAction.Payload) async throws -> String {
        switch payload {
        case .reminder(let draft):
            try await bridge.createReminder(draft)
            return "Rappel « \(draft.title) » créé pour \(DateResolver.display(draft.due))"

        case .event(let draft):
            try await bridge.createEvent(draft)
            return "Événement « \(draft.title) » créé le \(DateResolver.display(draft.start))"

        case .note(let draft):
            store.addNote(title: draft.title, content: draft.content)
            return "Note « \(draft.title) » enregistrée"

        case .newTask(let draft):
            store.addTask(title: draft.title, details: draft.details, due: draft.due)
            return "Tâche « \(draft.title) » créée"

        case .taskUpdate(let draft):
            try store.updateTask(
                uuid: draft.taskID,
                newTitle: draft.newTitle,
                newDue: draft.newDue,
                markDone: draft.markDone
            )
            return "Tâche « \(draft.newTitle ?? draft.currentTitle) » mise à jour"
        }
    }
}