1 files changed, 72 insertions, 0 deletions
diff --git a/init.lua b/init.lua
new file mode 100644
index 0000000..32c98de
--- /dev/null
+++ b/init.lua
@@ -0,0 +1,72 @@
+-- Codex subscription defaults for panto. No login, networking, or session activation.
+local auth_defaults = {
+    type = "oauth_device",
+    dialect = "codex",
+    client_id = "app_EMoamEEZ73f0CkXaXp7hrann",
+    device_code_url = "https://auth.openai.com/api/accounts/deviceauth/usercode",
+    device_poll_url = "https://auth.openai.com/api/accounts/deviceauth/token",
+    verification_url = "https://auth.openai.com/codex/device",
+    token_url = "https://auth.openai.com/oauth/token",
+    account_id_jwt_claim = "https://api.openai.com/auth",
+}
+
+local provider_defaults = {
+    style = "openai_responses",
+    model_catalog_name = "openai",
+    extra_headers = {
+        ["OpenAI-Beta"] = "responses=experimental",
+        originator = "codex_cli_rs",
+    },
+}
+
+local endpoint_defaults = {
+    openai_responses = {
+        base_url = "https://chatgpt.com/backend-api/codex",
+        dialect = "codex",
+    },
+}
+
+-- Fill only missing values; HTTP header names are case-insensitive.
+local function fill_missing(target, defaults, headers)
+    for key, value in pairs(defaults) do
+        local target_key = key
+        if headers then
+            for existing in pairs(target) do
+                if type(existing) == "string" and existing:lower() == key:lower() then
+                    target_key = existing
+                    break
+                end
+            end
+        end
+        if target[target_key] == nil then
+            target[target_key] = type(value) == "table" and {} or value
+        end
+        if type(value) == "table" and type(target[target_key]) == "table" then
+            fill_missing(target[target_key], value, key == "extra_headers")
+        end
+    end
+end
+
+return {
+    name = "codex",
+    configure = function(config)
+        for _, auth in pairs(config.auth or {}) do
+            if type(auth) == "table" and auth.panto_codex_extension == true then
+                fill_missing(auth, auth_defaults)
+            end
+        end
+        for _, provider in pairs(config.providers or {}) do
+            if type(provider) == "table" and provider.panto_codex_extension == true then
+                fill_missing(provider, provider_defaults)
+                if provider.endpoints == nil then
+                    fill_missing(provider, { base_url = endpoint_defaults.openai_responses.base_url })
+                    if provider.style == "openai_responses" then
+                        fill_missing(provider, { dialect = endpoint_defaults.openai_responses.dialect })
+                    end
+                else
+                    fill_missing(provider, { endpoints = endpoint_defaults })
+                end
+            end
+        end
+    end,
+}