0c517b734f
Agent loop runs on Core 1: pops inbound messages, builds system prompt from bootstrap files + memory, calls Claude API, saves session, pushes response to outbound queue. PSRAM-allocated buffers. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
98 lines
2.8 KiB
C
98 lines
2.8 KiB
C
#include "context_builder.h"
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#include "mimi_config.h"
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#include "memory/memory_store.h"
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include "esp_log.h"
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#include "cJSON.h"
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static const char *TAG = "context";
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static size_t append_file(char *buf, size_t size, size_t offset, const char *path, const char *header)
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{
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FILE *f = fopen(path, "r");
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if (!f) return offset;
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if (header && offset < size - 1) {
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offset += snprintf(buf + offset, size - offset, "\n## %s\n\n", header);
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}
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size_t n = fread(buf + offset, 1, size - offset - 1, f);
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offset += n;
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buf[offset] = '\0';
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fclose(f);
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return offset;
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}
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esp_err_t context_build_system_prompt(char *buf, size_t size)
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{
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size_t off = 0;
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/* Identity header */
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time_t now;
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time(&now);
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struct tm tm;
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localtime_r(&now, &tm);
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char time_str[64];
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strftime(time_str, sizeof(time_str), "%Y-%m-%d %H:%M (%A)", &tm);
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off += snprintf(buf + off, size - off,
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"# MimiClaw\n\n"
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"You are MimiClaw, a personal AI assistant running on an ESP32-S3 device.\n"
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"You communicate through Telegram and WebSocket.\n\n"
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"## Current Time\n%s\n\n"
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"Be helpful, accurate, and concise.\n",
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time_str);
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/* Bootstrap files */
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off = append_file(buf, size, off, MIMI_SOUL_FILE, "Personality");
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off = append_file(buf, size, off, MIMI_USER_FILE, "User Info");
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/* Long-term memory */
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char mem_buf[4096];
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if (memory_read_long_term(mem_buf, sizeof(mem_buf)) == ESP_OK && mem_buf[0]) {
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off += snprintf(buf + off, size - off, "\n## Long-term Memory\n\n%s\n", mem_buf);
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}
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/* Recent daily notes (last 3 days) */
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char recent_buf[4096];
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if (memory_read_recent(recent_buf, sizeof(recent_buf), 3) == ESP_OK && recent_buf[0]) {
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off += snprintf(buf + off, size - off, "\n## Recent Notes\n\n%s\n", recent_buf);
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}
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ESP_LOGI(TAG, "System prompt built: %d bytes", (int)off);
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return ESP_OK;
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}
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esp_err_t context_build_messages(const char *history_json, const char *user_message,
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char *buf, size_t size)
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{
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/* Parse existing history */
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cJSON *history = cJSON_Parse(history_json);
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if (!history) {
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history = cJSON_CreateArray();
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}
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/* Append current user message */
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cJSON *user_msg = cJSON_CreateObject();
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cJSON_AddStringToObject(user_msg, "role", "user");
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cJSON_AddStringToObject(user_msg, "content", user_message);
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cJSON_AddItemToArray(history, user_msg);
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/* Serialize */
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char *json_str = cJSON_PrintUnformatted(history);
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cJSON_Delete(history);
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if (json_str) {
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strncpy(buf, json_str, size - 1);
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buf[size - 1] = '\0';
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free(json_str);
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} else {
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snprintf(buf, size, "[{\"role\":\"user\",\"content\":\"%s\"}]", user_message);
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}
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return ESP_OK;
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}
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