---
phase: 01-foundation-auth
plan: 06
type: execute
wave: 4
depends_on: ["01-05"]
files_modified:
  - src/app/(dashboard)/subscription/page.tsx
  - src/app/actions/subscription.ts
  - src/components/subscription/plan-card.tsx
  - src/lib/plans.ts
autonomous: true

must_haves:
  truths:
    - "User can view all available plans (Free, Creator, Pro)"
    - "User can see their current plan highlighted"
    - "User can switch to a different plan"
    - "Plan change updates profile in database"
    - "Plan features are displayed clearly"
  artifacts:
    - path: "src/app/(dashboard)/subscription/page.tsx"
      provides: "Subscription management page"
      min_lines: 30
    - path: "src/app/actions/subscription.ts"
      provides: "Server action for plan switching"
      exports: ["switchPlan"]
    - path: "src/components/subscription/plan-card.tsx"
      provides: "Reusable plan display component"
      exports: ["PlanCard"]
  key_links:
    - from: "src/components/subscription/plan-card.tsx"
      to: "src/app/actions/subscription.ts"
      via: "switchPlan action"
      pattern: "switchPlan"
    - from: "src/app/actions/subscription.ts"
      to: "profiles table"
      via: "update plan_id"
      pattern: "update.*plan_id"
---

<objective>
Implement subscription management allowing users to view plans and switch between them.

Purpose: Enable users to view and change their subscription plan per AUTH-03 requirement. Payment integration deferred to later phase.

Output: Working subscription page where users can view all plans and switch their plan.
</objective>

<execution_context>
@C:\Users\miche\.claude/get-shit-done/workflows/execute-plan.md
@C:\Users\miche\.claude/get-shit-done/templates/summary.md
</execution_context>

<context>
@.planning/PROJECT.md
@.planning/ROADMAP.md
@.planning/phases/01-foundation-auth/01-RESEARCH.md
@.planning/phases/01-foundation-auth/01-02-SUMMARY.md
@.planning/phases/01-foundation-auth/01-05-SUMMARY.md
</context>

<tasks>

<task type="auto">
  <name>Task 1: Create plan utilities and types</name>
  <files>
    src/lib/plans.ts
    src/types/database.ts
  </files>
  <action>
    Create type definitions at src/types/database.ts:

    ```typescript
    export interface Plan {
      id: string
      name: 'free' | 'creator' | 'pro'
      display_name: string
      display_name_it: string
      price_monthly: number
      features: PlanFeatures
      created_at: string
    }

    export interface PlanFeatures {
      posts_per_month: number
      ai_models: string[]
      social_accounts: number
      image_generation: boolean
      automation: boolean | 'manual' | 'full'
    }

    export interface Profile {
      id: string
      tenant_id: string
      plan_id: string
      email: string
      full_name: string | null
      avatar_url: string | null
      created_at: string
      updated_at: string
      plans?: Plan
    }
    ```

    Create plan utilities at src/lib/plans.ts:

    ```typescript
    import { PlanFeatures } from '@/types/database'

    export const PLAN_DISPLAY_ORDER = ['free', 'creator', 'pro'] as const

    // Feature display names in Italian
    export const FEATURE_LABELS: Record<keyof PlanFeatures, string> = {
      posts_per_month: 'Post al mese',
      ai_models: 'Modelli AI',
      social_accounts: 'Account social',
      image_generation: 'Generazione immagini',
      automation: 'Automazione',
    }

    export function formatFeatureValue(
      key: keyof PlanFeatures,
      value: PlanFeatures[keyof PlanFeatures]
    ): string {
      if (typeof value === 'boolean') {
        return value ? 'Incluso' : 'Non incluso'
      }

      if (Array.isArray(value)) {
        return value.length.toString()
      }

      if (key === 'automation') {
        if (value === 'manual') return 'Solo manuale'
        if (value === 'full') return 'Completa'
        return 'Non inclusa'
      }

      return value.toString()
    }

    export function formatPrice(cents: number): string {
      if (cents === 0) return 'Gratis'
      return `€${(cents / 100).toFixed(0)}/mese`
    }

    export function getPlanBadgeColor(planName: string): string {
      switch (planName) {
        case 'pro':
          return 'bg-purple-100 text-purple-800 border-purple-200'
        case 'creator':
          return 'bg-blue-100 text-blue-800 border-blue-200'
        default:
          return 'bg-gray-100 text-gray-800 border-gray-200'
      }
    }
    ```

    These utilities:
    - Define TypeScript types for plans
    - Provide Italian labels for features
    - Format prices and feature values
    - Handle plan badge colors
  </action>
  <verify>
    - Both files exist
    - Types are correctly defined
    - Utility functions work
    - No TypeScript errors
  </verify>
  <done>
    Plan types and utility functions created.
  </done>
</task>

<task type="auto">
  <name>Task 2: Create plan card component and switch action</name>
  <files>
    src/components/subscription/plan-card.tsx
    src/app/actions/subscription.ts
  </files>
  <action>
    Create plan card component at src/components/subscription/plan-card.tsx:

    ```typescript
    'use client'

    import { Plan, PlanFeatures } from '@/types/database'
    import { formatFeatureValue, formatPrice, FEATURE_LABELS, getPlanBadgeColor } from '@/lib/plans'
    import { Button } from '@/components/ui/button'
    import { Card, CardContent, CardDescription, CardFooter, CardHeader, CardTitle } from '@/components/ui/card'
    import { switchPlan } from '@/app/actions/subscription'
    import { useTransition } from 'react'

    interface PlanCardProps {
      plan: Plan
      isCurrentPlan: boolean
      onPlanChange?: () => void
    }

    export function PlanCard({ plan, isCurrentPlan, onPlanChange }: PlanCardProps) {
      const [isPending, startTransition] = useTransition()

      const features = plan.features as PlanFeatures

      function handleSwitchPlan() {
        startTransition(async () => {
          const result = await switchPlan(plan.id)
          if (result.success && onPlanChange) {
            onPlanChange()
          }
        })
      }

      // Highlight features to show
      const displayFeatures: (keyof PlanFeatures)[] = [
        'posts_per_month',
        'social_accounts',
        'ai_models',
        'image_generation',
        'automation',
      ]

      return (
        <Card className={`relative ${isCurrentPlan ? 'ring-2 ring-blue-500' : ''}`}>
          {isCurrentPlan && (
            <div className="absolute -top-3 left-1/2 -translate-x-1/2">
              <span className="bg-blue-500 text-white text-xs font-medium px-3 py-1 rounded-full">
                Piano attuale
              </span>
            </div>
          )}

          <CardHeader className="text-center pt-8">
            <div className="mb-2">
              <span className={`inline-block px-3 py-1 text-xs font-medium rounded-full border ${getPlanBadgeColor(plan.name)}`}>
                {plan.display_name_it}
              </span>
            </div>
            <CardTitle className="text-3xl">
              {formatPrice(plan.price_monthly)}
            </CardTitle>
            <CardDescription>
              {plan.name === 'free' && 'Perfetto per iniziare'}
              {plan.name === 'creator' && 'Per creator seri'}
              {plan.name === 'pro' && 'Per professionisti'}
            </CardDescription>
          </CardHeader>

          <CardContent>
            <ul className="space-y-3">
              {displayFeatures.map((featureKey) => {
                const value = features[featureKey]
                const isIncluded = value !== false && value !== 'non incluso'

                return (
                  <li key={featureKey} className="flex items-center gap-2">
                    <span className={`w-5 h-5 rounded-full flex items-center justify-center text-xs ${
                      isIncluded ? 'bg-green-100 text-green-600' : 'bg-gray-100 text-gray-400'
                    }`}>
                      {isIncluded ? '✓' : '—'}
                    </span>
                    <span className="text-sm">
                      <span className="font-medium">
                        {formatFeatureValue(featureKey, value)}
                      </span>
                      {' '}
                      <span className="text-gray-500">
                        {FEATURE_LABELS[featureKey].toLowerCase()}
                      </span>
                    </span>
                  </li>
                )
              })}
            </ul>
          </CardContent>

          <CardFooter>
            {isCurrentPlan ? (
              <Button variant="outline" className="w-full" disabled>
                Piano attuale
              </Button>
            ) : (
              <Button
                className="w-full"
                onClick={handleSwitchPlan}
                disabled={isPending}
                variant={plan.name === 'pro' ? 'default' : 'outline'}
              >
                {isPending ? 'Cambio in corso...' : (
                  plan.price_monthly === 0 ? 'Passa a Gratuito' : `Passa a ${plan.display_name_it}`
                )}
              </Button>
            )}
          </CardFooter>
        </Card>
      )
    }
    ```

    Create subscription action at src/app/actions/subscription.ts:

    ```typescript
    'use server'

    import { createClient } from '@/lib/supabase/server'
    import { revalidatePath } from 'next/cache'

    export type SubscriptionActionState = {
      success?: boolean
      error?: string
      message?: string
    }

    export async function switchPlan(planId: string): Promise<SubscriptionActionState> {
      const supabase = await createClient()

      // Get current user
      const { data: { user }, error: authError } = await supabase.auth.getUser()

      if (authError || !user) {
        return { error: 'Devi essere autenticato per cambiare piano' }
      }

      // Verify plan exists
      const { data: plan, error: planError } = await supabase
        .from('plans')
        .select('id, name, display_name_it')
        .eq('id', planId)
        .single()

      if (planError || !plan) {
        return { error: 'Piano non trovato' }
      }

      // Update user's plan
      const { error: updateError } = await supabase
        .from('profiles')
        .update({ plan_id: planId })
        .eq('id', user.id)

      if (updateError) {
        console.error('Failed to update plan:', updateError)
        return { error: 'Errore durante il cambio piano. Riprova.' }
      }

      // Revalidate pages that show plan info
      revalidatePath('/dashboard')
      revalidatePath('/subscription')

      return {
        success: true,
        message: `Piano cambiato a ${plan.display_name_it}`
      }
    }

    export async function getCurrentPlan() {
      const supabase = await createClient()

      const { data: { user } } = await supabase.auth.getUser()

      if (!user) {
        return null
      }

      const { data: profile } = await supabase
        .from('profiles')
        .select(`
          plan_id,
          plans (
            id,
            name,
            display_name,
            display_name_it,
            price_monthly,
            features
          )
        `)
        .eq('id', user.id)
        .single()

      return profile?.plans || null
    }
    ```

    NOTE: This is a simplified plan switching for v1. In production:
    - Payment would be processed before switching to paid plans
    - Downgrade might be scheduled for end of billing period
    - Proration logic would be needed
    - These complexities are deferred per CONTEXT.md
  </action>
  <verify>
    - PlanCard component renders all plan features
    - switchPlan action updates database
    - Current plan is highlighted
    - Non-current plans have switch button
  </verify>
  <done>
    Plan card component and switch action created.
  </done>
</task>

<task type="auto">
  <name>Task 3: Create subscription page</name>
  <files>
    src/app/(dashboard)/subscription/page.tsx
  </files>
  <action>
    Create subscription management page at src/app/(dashboard)/subscription/page.tsx:

    ```typescript
    import { createClient } from '@/lib/supabase/server'
    import { redirect } from 'next/navigation'
    import { PlanCard } from '@/components/subscription/plan-card'
    import { Plan } from '@/types/database'
    import { PLAN_DISPLAY_ORDER } from '@/lib/plans'

    export default async function SubscriptionPage() {
      const supabase = await createClient()

      const { data: { user } } = await supabase.auth.getUser()

      if (!user) {
        redirect('/login')
      }

      // Get user's current plan
      const { data: profile } = await supabase
        .from('profiles')
        .select('plan_id')
        .eq('id', user.id)
        .single()

      // Get all plans
      const { data: plans, error: plansError } = await supabase
        .from('plans')
        .select('*')
        .order('price_monthly', { ascending: true })

      if (plansError || !plans) {
        return (
          <div className="text-center py-12">
            <p className="text-red-600">Errore nel caricamento dei piani</p>
          </div>
        )
      }

      // Sort plans by our display order
      const sortedPlans = [...plans].sort((a, b) => {
        return PLAN_DISPLAY_ORDER.indexOf(a.name as typeof PLAN_DISPLAY_ORDER[number]) -
               PLAN_DISPLAY_ORDER.indexOf(b.name as typeof PLAN_DISPLAY_ORDER[number])
      })

      return (
        <div className="space-y-8">
          <div>
            <h1 className="text-2xl font-bold text-gray-900">Il tuo abbonamento</h1>
            <p className="text-gray-500 mt-1">
              Scegli il piano piu adatto alle tue esigenze
            </p>
          </div>

          {/* Info banner */}
          <div className="bg-blue-50 border border-blue-200 rounded-lg p-4">
            <p className="text-sm text-blue-800">
              <strong>Nota:</strong> Il pagamento verra implementato nelle prossime versioni.
              Per ora puoi passare liberamente tra i piani per testare le funzionalita.
            </p>
          </div>

          {/* Plans grid */}
          <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
            {sortedPlans.map((plan) => (
              <PlanCard
                key={plan.id}
                plan={plan as Plan}
                isCurrentPlan={plan.id === profile?.plan_id}
              />
            ))}
          </div>

          {/* Feature comparison */}
          <div className="mt-12">
            <h2 className="text-xl font-semibold text-gray-900 mb-4">
              Confronto funzionalita
            </h2>
            <div className="overflow-x-auto">
              <table className="w-full border-collapse">
                <thead>
                  <tr className="border-b">
                    <th className="text-left py-3 px-4 font-medium text-gray-600">
                      Funzionalita
                    </th>
                    {sortedPlans.map((plan) => (
                      <th key={plan.id} className="text-center py-3 px-4 font-medium text-gray-900">
                        {plan.display_name_it}
                      </th>
                    ))}
                  </tr>
                </thead>
                <tbody>
                  <FeatureRow
                    feature="Post al mese"
                    plans={sortedPlans}
                    getValue={(p) => (p.features as Plan['features']).posts_per_month.toString()}
                  />
                  <FeatureRow
                    feature="Account social"
                    plans={sortedPlans}
                    getValue={(p) => (p.features as Plan['features']).social_accounts.toString()}
                  />
                  <FeatureRow
                    feature="Modelli AI"
                    plans={sortedPlans}
                    getValue={(p) => (p.features as Plan['features']).ai_models.length.toString()}
                  />
                  <FeatureRow
                    feature="Generazione immagini"
                    plans={sortedPlans}
                    getValue={(p) => (p.features as Plan['features']).image_generation ? '✓' : '—'}
                  />
                  <FeatureRow
                    feature="Automazione"
                    plans={sortedPlans}
                    getValue={(p) => {
                      const auto = (p.features as Plan['features']).automation
                      if (auto === false) return '—'
                      if (auto === 'manual') return 'Manuale'
                      if (auto === 'full') return 'Completa'
                      return '—'
                    }}
                  />
                </tbody>
              </table>
            </div>
          </div>

          {/* FAQ */}
          <div className="mt-12">
            <h2 className="text-xl font-semibold text-gray-900 mb-4">
              Domande frequenti
            </h2>
            <div className="space-y-4">
              <FaqItem
                question="Posso cambiare piano in qualsiasi momento?"
                answer="Si, puoi passare a un piano superiore o inferiore quando vuoi. Le modifiche sono immediate."
              />
              <FaqItem
                question="Cosa succede se supero i limiti del mio piano?"
                answer="Riceverai un avviso quando ti avvicini al limite mensile. Non potrai creare nuovi post fino al rinnovo o all'upgrade."
              />
              <FaqItem
                question="Come funziona il pagamento?"
                answer="Il sistema di pagamento verra implementato a breve. Per ora tutti i piani sono disponibili gratuitamente per i test."
              />
            </div>
          </div>
        </div>
      )
    }

    function FeatureRow({
      feature,
      plans,
      getValue,
    }: {
      feature: string
      plans: Plan[]
      getValue: (plan: Plan) => string
    }) {
      return (
        <tr className="border-b">
          <td className="py-3 px-4 text-gray-600">{feature}</td>
          {plans.map((plan) => (
            <td key={plan.id} className="text-center py-3 px-4">
              {getValue(plan)}
            </td>
          ))}
        </tr>
      )
    }

    function FaqItem({ question, answer }: { question: string; answer: string }) {
      return (
        <div className="bg-gray-50 rounded-lg p-4">
          <h3 className="font-medium text-gray-900 mb-2">{question}</h3>
          <p className="text-sm text-gray-600">{answer}</p>
        </div>
      )
    }
    ```

    This page:
    - Shows all three plans in cards
    - Highlights current plan
    - Allows switching between plans
    - Shows feature comparison table
    - Includes FAQ section
    - Notes that payment is deferred (transparency)
    - All text in Italian
  </action>
  <verify>
    - Page loads at /subscription
    - All three plans display
    - Current plan is highlighted
    - Can click to switch plans
    - Feature comparison table is accurate
  </verify>
  <done>
    Complete subscription management page with plan display and switching.
  </done>
</task>

</tasks>

<verification>
After all tasks complete:
1. Visit /subscription when logged in
2. See all three plans (Free, Creator, Pro)
3. Current plan is highlighted with "Piano attuale" badge
4. Click switch button on different plan -> plan changes
5. Dashboard reflects new plan after switch
6. Feature comparison table shows correct values
</verification>

<success_criteria>
- All three plans display with correct pricing
- User can view their current plan
- User can switch to a different plan
- Plan switch updates database (verify in Supabase)
- Feature limits are clearly displayed
- All text is in Italian
- Note about payment deferral is visible
</success_criteria>

<output>
After completion, create `.planning/phases/01-foundation-auth/01-06-SUMMARY.md`
</output>