Fix Global Variable Thread-Safety Issue

[ShadowMarty]

Description

The application uses a global variable to_say that's modified across multiple endpoints. When multiple farmers call simultaneously, their responses get mixed up because all calls share the same global variable. This is a critical production bug.

Example of the Problem:

Farmer A calls: "Tell me about PM-KISAN"
Farmer B calls: "Weather forecast please"
Agent sets to_say = "PM-KISAN gives Rs. 6000..."
Agent sets to_say = "Today's weather is sunny..." (overwrites!)
Farmer A hears: "Today's weather is sunny..." ❌ (Wrong response!)

What needs to be done:

• Remove the global to_say variable
• Implement session-based conversation storage using Flask sessions
• Store conversation state per Call SID (unique for each call)
• Update both /voice and /handle-speech endpoints
• Test with concurrent calls (simulate using multiple requests)

[Prathik-Kharat]

I would love to take this. Can you assign this?

[ShadowMarty]

!assign @Prathik-Kharat

[Bhaveshm10]

please could i be assigned to this?

[shar444]

can i get assigned to it

[ShadowMarty]

Please note that only one person can work on this issue at a time

[bunsamosa-bot]

Hey @ShadowMarty! The timer for the @Prathik-Kharat to work on the issue has finished, deassign and assign a new contributor or extend the current timer. Contact maintainer leads if inactive @mebinthattil @adityatr64

[taneem77]

can i work on this

[ShadowMarty]

@Prathik-Kharat please update your progress

[Maria-Niya]

Can i be assign to this?