#ifndef LLSH_CONFIG_H
#define LLSH_CONFIG_H

#include "dotagents.h"
#include "util.h"

/* Mirrors config.rs: CLI + file config + merged Config. */

typedef enum {
    PROV_OPENAI,
    PROV_ANTHROPIC,
    PROV_OLLAMA,
} provider_kind;

#define LLSH_VERSION "0.1.0"

typedef struct {
    char *prompt;
    char *model;
    char *provider;
    char *base_url;
    char *api_key;
    char *cwd;
    char *preamble;
    unsigned long max_turns;
    bool has_max_turns;
    unsigned long max_retries;
    bool has_max_retries;
    unsigned long context_limit;
    bool has_context_limit;
    double compact_threshold;
    bool has_compact_threshold;
    double clear_threshold;
    bool has_clear_threshold;
    bool verbose;
    bool allow_mcp;
    bool confirm_destructive;
    bool has_confirm_destructive;
    strlist shell_allowlist;
    strlist shell_denylist;
    bool debug;
    bool no_rubric; /* --no-rubric-compaction */
    unsigned long rubric_max_summaries;
    bool has_rubric_max_summaries;
    unsigned long skill_index_cap;
    bool has_skill_index_cap;
    unsigned long shell_timeout_secs;
    bool has_shell_timeout_secs;
    unsigned long max_output_chars;
    bool has_max_output_chars;
    unsigned long max_file_bytes;
    bool has_max_file_bytes;
    char *resume;
} cli;

typedef struct {
    provider_kind provider;
    char *model;
    char *base_url; /* may be NULL */
    char *api_key;  /* may be NULL */
    char *preamble;
    unsigned long max_turns;
    unsigned long max_retries;
    unsigned long context_limit;
    double compact_threshold;
    double clear_threshold;
    bool rubric_enabled;
    unsigned long rubric_max_summaries; /* 0 = unlimited */
    bool verbose;
    unsigned long skill_index_cap;
    unsigned long shell_timeout_secs;
    unsigned long max_output_chars;
    unsigned long max_file_bytes;
    strlist shell_allowlist;
    strlist shell_denylist;
    bool confirm_destructive;
} config;

/* Parse argv (without program name). 0 on success; -2 prints help and returns
 * CLI_HELP (call should exit); -1 error. */
#define CLI_HELP (-2)
int cli_parse(int argc, char **argv, cli *out, char **err);
void cli_free(cli *c);

/* Merge CLI + file with precedence CLI > file > defaults. Changes CWD. */
/* Build the merged config directly from CLI arguments (the former
 * config-file layer was removed; connection presets live in
 * `.agents/models.json`). */
int config_from_cli(const cli *cli, config *out, char **err);
int config_merge(const cli *cli, config *out, char **err);
void config_free(config *c);

/* Reject key-requiring providers with neither api_key nor base_url. Run
 * after a models.json preset may have supplied them (the merge itself no
 * longer checks). */
int config_require_key_or_base(const config *c, char **err);
provider_kind provider_parse(const char *raw, char **err);
const char *provider_name(provider_kind k);
const char *provider_default_model(provider_kind k);

/* Apply a models.json `default` preset (see dotagents). Returns preset name
 * (caller frees) or NULL + *err. */
char *config_apply_models_preset(config *cfg, const models_file *models,
                                 const cli *cli, char **err);

#endif