Initial commit — RoadCode import

lib/providers/anthropic.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
+# shellcheck source=../common.sh
+. "$ROOT_DIR/lib/common.sh"
+
+anthropic_call() {
+  local system_prompt="${1:-}"
+  local user_prompt="${2:-}"
+  local model="${ANTHROPIC_MODEL:-claude-3-5-sonnet-20240620}"
+  local max_tokens="${ANTHROPIC_MAX_TOKENS:-1024}"
+  local api_url="${ANTHROPIC_API_URL:-https://api.anthropic.com/v1/messages}"
+  local timeout="${ANTHROPIC_TIMEOUT_SECONDS:-60}"
+
+  require_env ANTHROPIC_API_KEY
+  require_cmd curl
+  require_cmd jq
+
+  if ! [[ "$max_tokens" =~ ^[0-9]+$ ]]; then
+    die "ANTHROPIC_MAX_TOKENS must be numeric"
+  fi
+
+  local payload
+  payload="$(jq -n \
+    --arg model "$model" \
+    --arg system "$system_prompt" \
+    --arg user "$user_prompt" \
+    --argjson max_tokens "$max_tokens" \
+    '{
+      model: $model,
+      system: $system,
+      max_tokens: $max_tokens,
+      messages: [
+        {
+          role: "user",
+          content: [{type: "text", text: $user}]
+        }
+      ]
+    }')"
+
+  local response
+  response="$(HTTP_TIMEOUT_SECONDS="$timeout" http_json POST "$api_url" "$payload" \
+    "x-api-key: $ANTHROPIC_API_KEY" \
+    "anthropic-version: 2023-06-01")"
+
+  local output
+  output="$(printf '%s' "$response" | jq -r '.content[0].text // empty')"
+  if [[ -z "$output" ]]; then
+    die "Anthropic response missing content"
+  fi
+
+  printf '%s\n' "$output"
+}