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54d9dcb | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 | 'use strict';
const { v4: uuidv4 } = require('uuid');
const { getPool } = require('../db');
/**
* Create a new feedback event (PostgreSQL)
*/
async function createFeedbackEvent(req, res) {
const {
event_type,
session_id,
user_hash,
context = {},
itinerary_snapshot = [],
modifications = [],
reward = 0
} = req.body;
// Validation
if (!event_type) {
return res.status(400).json({
error: { message: 'event_type is required' }
});
}
const validEventTypes = [
'plan_saved', 'plan_completed', 'rating_positive',
'poi_added', 'plan_abandoned', 'poi_removed',
'rating_negative', 'poi_reordered', 'poi_swapped', 'session_start'
];
if (!validEventTypes.includes(event_type)) {
return res.status(400).json({
error: { message: `Invalid event_type. Must be one of: ${validEventTypes.join(', ')}` }
});
}
try {
const pool = getPool();
if (!pool) {
return res.status(503).json({ error: { message: 'Database not available' } });
}
const id = uuidv4();
const query = `
INSERT INTO feedback_events
(id, event_type, session_id, user_hash, context, itinerary_snapshot, modifications, reward, created_at)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8, NOW())
`;
const params = [
id,
event_type,
session_id || null,
user_hash || null,
JSON.stringify(context),
JSON.stringify(itinerary_snapshot),
JSON.stringify(modifications),
reward
];
await pool.query(query, params);
res.status(201).json({
data: { id, event_type, session_id, reward },
message: 'Feedback event recorded successfully'
});
} catch (err) {
console.error('Error creating feedback event:', err);
res.status(500).json({ error: { message: 'Failed to record feedback event' } });
}
}
/**
* List feedback events with optional filters (PostgreSQL)
*/
async function listFeedbackEvents(req, res) {
const { event_type, session_id, limit = 100, offset = 0 } = req.query;
try {
const pool = getPool();
if (!pool) {
return res.status(503).json({ error: { message: 'Database not available' } });
}
let query = 'SELECT * FROM feedback_events WHERE 1=1';
const params = [];
let paramCounter = 1;
if (event_type) {
query += ` AND event_type = $${paramCounter++}`;
params.push(event_type);
}
if (session_id) {
query += ` AND session_id = $${paramCounter++}`;
params.push(session_id);
}
query += ` ORDER BY created_at DESC LIMIT $${paramCounter++} OFFSET $${paramCounter++}`;
params.push(Math.min(parseInt(limit), 1000), parseInt(offset));
const result = await pool.query(query, params);
res.json({ data: result.rows });
} catch (err) {
console.error('Error listing feedback events:', err);
res.status(500).json({ error: { message: 'Failed to list feedback events' } });
}
}
/**
* Get aggregated statistics for a POI (PostgreSQL)
*/
async function getPOIStats(req, res) {
const { poi_id } = req.params;
if (!poi_id) {
return res.status(400).json({ error: { message: 'poi_id is required' } });
}
try {
const pool = getPool();
if (!pool) {
return res.status(503).json({ error: { message: 'Database not available' } });
}
// PostgreSQL JSONB search or simple LIKE on TEXT
const query = `
SELECT event_type, reward, modifications
FROM feedback_events
WHERE itinerary_snapshot::text LIKE $1
`;
const result = await pool.query(query, [`%${poi_id}%`]);
const events = result.rows;
const stats = {
poi_id,
times_suggested: events.length,
times_saved: events.filter(e => e.event_type === 'plan_saved').length,
times_removed: events.filter(e => {
if (e.event_type !== 'poi_removed') return false;
const mods = typeof e.modifications === 'string' ? JSON.parse(e.modifications) : e.modifications;
return Array.isArray(mods) && mods.some(m => m.poi_id === poi_id);
}).length,
avg_reward: events.length > 0
? (events.reduce((sum, e) => sum + parseFloat(e.reward), 0) / events.length).toFixed(2)
: 0,
save_rate: 0
};
if (stats.times_suggested > 0) {
stats.save_rate = (stats.times_saved / stats.times_suggested).toFixed(2);
}
res.json({ data: stats });
} catch (err) {
console.error('Error getting POI stats:', err);
res.status(500).json({ error: { message: 'Failed to get POI stats' } });
}
}
module.exports = {
createFeedbackEvent,
listFeedbackEvents,
getPOIStats
};
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