# The chat client's core-logic loop, headless: replay with
#   native dev --core --script dev-script.ndjson
# Msgs dispatch into update; the endpoint's answers are ordinary Msgs, so
# the responses are fed back by hand exactly as the transcript's
# `cmd fetch ...` lines invite — the same loop the native app runs, with
# you standing in for the network.

# The launch configuration arrives through the env channel as ordinary
# Msgs (under the real app the generated wiring dispatches these from the
# environment at install). A local placeholder endpoint - nothing dials
# out under the core host.
{"kind":"endpoint_set","value":{"$bytes":"http://127.0.0.1:11434/v1/chat/completions"}}
{"kind":"model_set","value":{"$bytes":"local-model"}}
{"kind":"key_set","value":{"$bytes":"local"}}

# Type a message (the composer runs the SDK byte-splice text engine) and
# send. The transcript shows the fetch command whole: POST, the endpoint,
# the runtime-built "authorization: Bearer <key>" header, and the JSON
# body - system prompt first, then the history.
{"kind":"draft_edit","edit":{"kind":"insert_text","text":{"$bytes":"Say hi in two words"}}}
{"kind":"send"}

# The endpoint's answer, fed back by hand: choices[0].message.content
# parses into the assistant turn (escapes decode - note the \n).
{"kind":"chat_response","status":200,"body":{"$bytes":"{\"choices\":[{\"message\":{\"role\":\"assistant\",\"content\":\"Hi\\nthere!\"}}]}"}}

# A second turn grows the history: watch the request body carry both
# earlier turns before the new question.
{"kind":"draft_edit","edit":{"kind":"insert_text","text":{"$bytes":"And a follow-up?"}}}
{"kind":"send"}

# This time the endpoint fails with its own error body - the failed
# state keeps the history and surfaces error.message as the reason.
{"kind":"chat_response","status":500,"body":{"$bytes":"{\"error\":{\"message\":\"model overloaded\",\"type\":\"server_error\"}}"}}

# Retry re-sends the SAME conversation (no new turn); a success resolves
# it into the fourth turn.
{"kind":"retry"}
{"kind":"chat_response","status":200,"body":{"$bytes":"{\"choices\":[{\"message\":{\"role\":\"assistant\",\"content\":\"Certainly.\"}}]}"}}