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

import SwiftUI

/// Empty state: the promise, then three one-tap ways to try the agent.
struct WelcomeView: View {
    let onSuggestion: (String) -> Void

    private static let suggestions: [(icon: String, text: String)] = [
        ("bell", "Rappelle-moi d'appeler le dentiste demain à 9 h"),
        ("calendar", "Qu'est-ce que j'ai au programme cette semaine ?"),
        ("note.text", "Note que je dois renouveler mon passeport"),
    ]

    var body: some View {
        VStack(spacing: 0) {
            Spacer()

            BrandMark(size: 76)
                .padding(.bottom, Theme.spacingLarge)

            Text("Ton agent, sur ton appareil.")
                .font(.title2.weight(.bold))
                .multilineTextAlignment(.center)

            Text("Hors ligne. Privé. Rien ne quitte ton iPhone.")
                .font(.subheadline)
                .foregroundStyle(.secondary)
                .padding(.top, Theme.spacingSmall)

            Spacer()

            VStack(spacing: Theme.spacingSmall + 4) {
                ForEach(Self.suggestions, id: \.text) { suggestion in
                    Button {
                        onSuggestion(suggestion.text)
                    } label: {
                        HStack(spacing: Theme.spacingMedium) {
                            Image(systemName: suggestion.icon)
                                .font(.system(size: 15, weight: .semibold))
                                .foregroundStyle(Theme.accentGradient)
                                .frame(width: 22)
                            Text(suggestion.text)
                                .font(.subheadline.weight(.medium))
                                .foregroundStyle(.primary)
                                .multilineTextAlignment(.leading)
                            Spacer()
                        }
                        .padding(.horizontal, Theme.spacingMedium + 4)
                        .padding(.vertical, Theme.spacingMedium)
                        .background(Theme.surface)
                        .clipShape(RoundedRectangle(cornerRadius: Theme.cardCornerRadius - 4))
                        .overlay {
                            RoundedRectangle(cornerRadius: Theme.cardCornerRadius - 4)
                                .strokeBorder(Theme.accentA.opacity(0.14))
                        }
                    }
                    .buttonStyle(.plain)
                }
            }
            .padding(.horizontal, Theme.spacingLarge)
            .padding(.bottom, Theme.spacingMedium)
        }
        .frame(maxWidth: .infinity, maxHeight: .infinity)
    }
}