//
//  WidgetSharedViews.swift
//  FeelsWidget
//
//  Shared voting views used across multiple widgets
//

import WidgetKit
import SwiftUI
import AppIntents

// MARK: - Voting View

struct VotingView: View {
    let family: WidgetFamily
    let promptText: String
    let hasSubscription: Bool

    private var moodTint: MoodTintable.Type {
        UserDefaultsStore.moodTintable()
    }

    private var moodImages: MoodImagable.Type {
        UserDefaultsStore.moodMoodImagable()
    }

    var body: some View {
        if family == .systemSmall {
            smallLayout
        } else {
            mediumLayout
        }
    }

    // MARK: - Small Widget: 3 over 2 grid
    private var smallLayout: some View {
        VStack(spacing: 0) {
            Text(hasSubscription ? promptText : "Tap to open app")
                .font(.caption)
                .foregroundStyle(.primary)
                .multilineTextAlignment(.center)
                .lineLimit(1)
                .minimumScaleFactor(0.7)
                .padding(.bottom, 10)

            // Top row: Great, Good, Average
            HStack(spacing: 12) {
                ForEach([Mood.great, .good, .average], id: \.rawValue) { mood in
                    moodButton(for: mood, size: 36)
                }
            }
            .padding(.bottom, 6)

            // Bottom row: Bad, Horrible
            HStack(spacing: 12) {
                ForEach([Mood.bad, .horrible], id: \.rawValue) { mood in
                    moodButton(for: mood, size: 36)
                }
            }
        }
        .padding(.horizontal, 8)
        .padding(.vertical, 4)
    }

    // MARK: - Medium Widget: Single row
    private var mediumLayout: some View {
        VStack(spacing: 12) {
            Text(hasSubscription ? promptText : "Subscribe to track your mood")
                .font(.headline)
                .foregroundStyle(.primary)
                .multilineTextAlignment(.center)
                .lineLimit(2)
                .minimumScaleFactor(0.8)

            HStack(spacing: 0) {
                ForEach([Mood.great, .good, .average, .bad, .horrible], id: \.rawValue) { mood in
                    moodButtonMedium(for: mood)
                        .frame(maxWidth: .infinity)
                }
            }
        }
        .padding(.horizontal, 12)
        .padding(.vertical, 16)
    }

    @ViewBuilder
    private func moodButton(for mood: Mood, size: CGFloat) -> some View {
        // Used for small widget
        let touchSize = max(size, 44)

        if hasSubscription {
            Button(intent: VoteMoodIntent(mood: mood)) {
                moodIcon(for: mood, size: size)
                    .frame(minWidth: touchSize, minHeight: touchSize)
            }
            .buttonStyle(.plain)
            .accessibilityLabel(mood.strValue)
            .accessibilityHint(String(localized: "Log this mood"))
        } else {
            Link(destination: URL(string: "feels://subscribe")!) {
                moodIcon(for: mood, size: size)
                    .frame(minWidth: touchSize, minHeight: touchSize)
            }
            .accessibilityLabel(mood.strValue)
            .accessibilityHint(String(localized: "Open app to subscribe"))
        }
    }

    @ViewBuilder
    private func moodButtonMedium(for mood: Mood) -> some View {
        // Medium widget uses smaller icons with labels, flexible width
        let content = VStack(spacing: 4) {
            moodImages.icon(forMood: mood)
                .resizable()
                .aspectRatio(contentMode: .fit)
                .frame(width: 32, height: 32)
                .foregroundColor(moodTint.color(forMood: mood))

            Text(mood.widgetDisplayName)
                .font(.caption2)
                .foregroundColor(moodTint.color(forMood: mood))
                .lineLimit(1)
                .minimumScaleFactor(0.8)
        }

        if hasSubscription {
            Button(intent: VoteMoodIntent(mood: mood)) {
                content
            }
            .buttonStyle(.plain)
            .accessibilityLabel(mood.strValue)
            .accessibilityHint(String(localized: "Log this mood"))
        } else {
            Link(destination: URL(string: "feels://subscribe")!) {
                content
            }
            .accessibilityLabel(mood.strValue)
            .accessibilityHint(String(localized: "Open app to subscribe"))
        }
    }

    private func moodIcon(for mood: Mood, size: CGFloat) -> some View {
        moodImages.icon(forMood: mood)
            .resizable()
            .aspectRatio(contentMode: .fit)
            .frame(width: size, height: size)
            .foregroundColor(moodTint.color(forMood: mood))
    }
}

// MARK: - Large Voting View

struct LargeVotingView: View {
    let promptText: String
    let hasSubscription: Bool

    private var moodTint: MoodTintable.Type {
        UserDefaultsStore.moodTintable()
    }

    private var moodImages: MoodImagable.Type {
        UserDefaultsStore.moodMoodImagable()
    }

    var body: some View {
        VStack(spacing: 16) {
            Spacer()

            Text(hasSubscription ? promptText : "Subscribe to track your mood")
                .font(.title3.weight(.semibold))
                .foregroundStyle(.primary)
                .multilineTextAlignment(.center)
                .lineLimit(2)
                .minimumScaleFactor(0.8)
                .padding(.horizontal, 8)

            // Large mood buttons in a row - flexible spacing
            HStack(spacing: 0) {
                ForEach([Mood.great, .good, .average, .bad, .horrible], id: \.rawValue) { mood in
                    moodButton(for: mood)
                        .frame(maxWidth: .infinity)
                }
            }

            Spacer()
        }
        .padding(.horizontal, 12)
        .padding(.vertical, 16)
    }

    @ViewBuilder
    private func moodButton(for mood: Mood) -> some View {
        if hasSubscription {
            Button(intent: VoteMoodIntent(mood: mood)) {
                moodButtonContent(for: mood)
            }
            .buttonStyle(.plain)
            .accessibilityLabel(mood.strValue)
            .accessibilityHint(String(localized: "Log this mood"))
        } else {
            Link(destination: URL(string: "feels://subscribe")!) {
                moodButtonContent(for: mood)
            }
            .accessibilityLabel(mood.strValue)
            .accessibilityHint(String(localized: "Open app to subscribe"))
        }
    }

    private func moodButtonContent(for mood: Mood) -> some View {
        VStack(spacing: 4) {
            moodImages.icon(forMood: mood)
                .resizable()
                .aspectRatio(contentMode: .fit)
                .frame(width: 40, height: 40)
                .foregroundColor(moodTint.color(forMood: mood))

            Text(mood.widgetDisplayName)
                .font(.caption2.weight(.medium))
                .foregroundColor(moodTint.color(forMood: mood))
                .lineLimit(1)
                .minimumScaleFactor(0.8)
        }
        .padding(.vertical, 8)
        .padding(.horizontal, 4)
        .background(
            RoundedRectangle(cornerRadius: 12)
                .fill(moodTint.color(forMood: mood).opacity(0.15))
        )
    }
}

// MARK: - Inline Voting View (compact mood buttons for timeline widget)

struct InlineVotingView: View {
    let promptText: String
    let hasSubscription: Bool
    let moods: [Mood] = [.horrible, .bad, .average, .good, .great]

    private var moodTint: MoodTintable.Type {
        UserDefaultsStore.moodTintable()
    }

    private var moodImages: MoodImagable.Type {
        UserDefaultsStore.moodMoodImagable()
    }

    var body: some View {
        VStack(spacing: 8) {
            Text(hasSubscription ? promptText : "Tap to open app")
                .font(.subheadline)
                .foregroundStyle(.primary)
                .multilineTextAlignment(.center)
                .lineLimit(2)
                .minimumScaleFactor(0.7)

            HStack(spacing: 8) {
                ForEach(moods, id: \.rawValue) { mood in
                    moodButton(for: mood)
                }
            }
        }
    }

    @ViewBuilder
    private func moodButton(for mood: Mood) -> some View {
        if hasSubscription {
            Button(intent: VoteMoodIntent(mood: mood)) {
                moodIcon(for: mood)
            }
            .buttonStyle(.plain)
            .accessibilityLabel(mood.strValue)
            .accessibilityHint(String(localized: "Log this mood"))
        } else {
            Link(destination: URL(string: "feels://subscribe")!) {
                moodIcon(for: mood)
            }
            .accessibilityLabel(mood.strValue)
            .accessibilityHint(String(localized: "Open app to subscribe"))
        }
    }

    private func moodIcon(for mood: Mood) -> some View {
        moodImages.icon(forMood: mood)
            .resizable()
            .aspectRatio(contentMode: .fit)
            .frame(width: 44, height: 44)
            .foregroundColor(moodTint.color(forMood: mood))
    }
}