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2026-04-21 18:00:30 +07:00
parent 2173a765c9
commit 23dc306f12
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+// Supabase Edge Function: generate-habits
+// Deploy: supabase functions deploy generate-habits --no-verify-jwt
+// Set secret: supabase secrets set GEMINI_API_KEY=your-key-here
+
+import { serve } from 'https://deno.land/std@0.168.0/http/server.ts';
+
+const GEMINI_URL =
+  'https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent';
+
+const corsHeaders = {
+  'Access-Control-Allow-Origin': '*',
+  'Access-Control-Allow-Headers': 'authorization, x-client-info, apikey, content-type',
+};
+
+function buildPrompt(story: string): string {
+  return `You are a thoughtful and emotionally intelligent personal growth coach.
+
+A user has written a personal story about their current life and who they want to become.
+
+Your job is NOT just to generate habits.
+Your job is to deeply understand the person and reflect their intention back in a meaningful way.
+
+---
+
+INSTRUCTIONS:
+
+1. Read the user's story carefully.
+2. Understand:
+   - their struggles
+   - their desires
+   - their emotional tone
+
+3. Then generate:
+
+A. Identity Title
+- A short, powerful sentence
+- Feels personal and motivating
+- Example: "I am someone who shows up even when it's hard"
+
+B. Identity Summary
+- 2-3 sentences
+- Reflect their story in a human tone
+- Make it feel like someone truly understands them
+- Avoid generic phrases
+
+C. Suggested Habits (5-8 items)
+
+Rules:
+- Very simple and actionable
+- Can be done daily
+- No complexity
+- Each habit max 1 sentence
+- Feels aligned with their story (not random)
+
+IMPORTANT:
+- Habits should feel like "small proof of identity"
+- Not tasks, but expressions of who they want to become
+
+D. Tone Style:
+- Warm
+- Supportive
+- Slightly motivational
+- Never robotic
+- Never overly formal
+- Avoid buzzwords like "optimize", "maximize"
+
+---
+
+OUTPUT FORMAT (JSON ONLY):
+Return ONLY valid JSON. No explanation, no markdown, no extra text.
+
+{
+  "identity_title": "",
+  "identity_summary": "",
+  "suggested_habits": [
+    "",
+    "",
+    "",
+    "",
+    ""
+  ]
+}
+
+---
+
+EXAMPLE:
+
+User story: "I feel like I procrastinate a lot and I want to be more focused and disciplined."
+
+Bad output: "Improve productivity with structured routines"
+Good output: "I am someone who takes action even when I don't feel ready"
+
+Make the user feel understood, not analyzed.
+
+---
+
+User story:
+"""
+${story}
+"""`;
+}
+
+serve(async (req) => {
+  // Handle CORS preflight
+  if (req.method === 'OPTIONS') {
+    return new Response('ok', { headers: corsHeaders });
+  }
+
+  try {
+    const { story } = await req.json();
+
+    if (!story || typeof story !== 'string' || story.trim().length < 10) {
+      return new Response(
+        JSON.stringify({ error: 'Please write at least a few sentences about yourself.' }),
+        { status: 400, headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
+      );
+    }
+
+    const apiKey = Deno.env.get('GEMINI_API_KEY');
+    if (!apiKey) {
+      return new Response(
+        JSON.stringify({ error: 'AI service not configured. Please set GEMINI_API_KEY.' }),
+        { status: 500, headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
+      );
+    }
+
+    // Call Gemini API
+    const geminiResponse = await fetch(`${GEMINI_URL}?key=${apiKey}`, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({
+        contents: [{ parts: [{ text: buildPrompt(story.trim()) }] }],
+        generationConfig: {
+          temperature: 0.7,
+          topP: 0.9,
+          maxOutputTokens: 1024,
+        },
+      }),
+    });
+
+    if (!geminiResponse.ok) {
+      const errText = await geminiResponse.text();
+      console.error('Gemini API error:', errText);
+      return new Response(
+        JSON.stringify({ error: 'AI generation failed. Please try again.' }),
+        { status: 502, headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
+      );
+    }
+
+    const geminiData = await geminiResponse.json();
+
+    // Extract text from Gemini response
+    const rawText =
+      geminiData?.candidates?.[0]?.content?.parts?.[0]?.text || '';
+
+    // Parse JSON from response (handle potential markdown wrapping)
+    let cleaned = rawText.trim();
+    // Remove markdown code blocks if present
+    cleaned = cleaned.replace(/```json\s*/gi, '').replace(/```\s*/gi, '');
+    cleaned = cleaned.trim();
+
+    let result;
+    try {
+      result = JSON.parse(cleaned);
+    } catch {
+      console.error('Failed to parse Gemini output:', cleaned);
+      return new Response(
+        JSON.stringify({ error: 'AI returned invalid data. Please try again.' }),
+        { status: 502, headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
+      );
+    }
+
+    // Validate structure
+    if (
+      !result.identity_title ||
+      !result.identity_summary ||
+      !Array.isArray(result.suggested_habits) ||
+      result.suggested_habits.length === 0
+    ) {
+      return new Response(
+        JSON.stringify({ error: 'AI returned incomplete data. Please try again.' }),
+        { status: 502, headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
+      );
+    }
+
+    return new Response(JSON.stringify(result), {
+      headers: { ...corsHeaders, 'Content-Type': 'application/json' },
+    });
+  } catch (err) {
+    console.error('Function error:', err);
+    return new Response(
+      JSON.stringify({ error: 'Something went wrong. Please try again.' }),
+      { status: 500, headers: { ...corsHeaders, 'Content-Type': 'application/json' } }
+    );
+  }
+});