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#ifndef WP_FORMAT_TABLE_H
#define WP_FORMAT_TABLE_H

#include "wp_layout_shared.h"
#include "wp_record_parser.h"
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

#define WP_FORMAT_TABLE_MAX_STORED_WORDS 32U

typedef struct WpFormatTableInfo {
    bool is_present;
    uint8_t sub_code;
    uint16_t payload_bytes;
    size_t word_count;
    bool odd_payload_byte;
    uint8_t odd_payload_tail;

    size_t usable_word_count;
    size_t sentinel_word_count;
    size_t zero_word_count;
    size_t group_count;
    size_t longest_group_words;

    bool has_values;
    uint16_t first_value_index;
    uint16_t first_value;
    uint16_t last_value_index;
    uint16_t last_value;
    uint16_t min_value;
    uint16_t max_value;

    bool has_positive_step;
    uint16_t first_positive_step;
    uint16_t min_positive_step;
    uint16_t max_positive_step;
    size_t positive_step_count;
    size_t nonmonotonic_step_count;

    size_t stored_word_count;
    uint16_t stored_words[WP_FORMAT_TABLE_MAX_STORED_WORDS];
} WpFormatTableInfo;

/* Host-safe ports of the Segment 2000 Formatting / Tables logic. */

void wp_format_table_clear(WpFormatTableInfo *table);
bool wp_format_table_decode_payload(const uint8_t *payload,
                                    uint16_t payload_length,
                                    uint8_t sub_code,
                                    WpFormatTableInfo *out_table);
bool wp_format_table_decode_record(const WpRecord *rec, WpFormatTableInfo *out_table);
uint16_t wp_format_table_recommended_span_step(const WpFormatTableInfo *table);
bool wp_format_table_describe(const WpFormatTableInfo *table, char *out, size_t out_size);

void __cdecl16far format_run_stream_table_main_loop(WpLayoutGlobals *wl, uint16_t *unaff_SI);
void __cdecl16near format_bresenham_line_step_core(WpLayoutGlobals *wl, uint16_t *unaff_SI);
void __cdecl16near format_rectangle_compact_initialize(WpLayoutGlobals *wl);
uint16_t __cdecl16near format_word_pair_stride_walk_loop(WpLayoutGlobals *wl);

#endif

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