import os
import time
import json

# Pfad zur Eingabedatei und Ausgabedatei
input_file = "src/dtc_defs.txt"
output_file = "include/dtc_defs.h"
json_output_file = "data_src/static/dtc_table.json"

# Überprüfen, ob das Verzeichnis existiert, andernfalls erstellen
json_output_dir = os.path.dirname(json_output_file)
if not os.path.exists(json_output_dir):
    os.makedirs(json_output_dir)

# Mehrdimensionales Array zum Speichern der Zeilen aus der Eingabedatei
dtc_lines = []

# Lesen und analysieren der Eingabedatei
with open(input_file, "r", encoding="utf-8") as f:
    for line in f:
        line = line.strip()
        if not line or line.startswith("#"):
            continue

        parts = line.split(";")
        if len(parts) == 5:
            num, dtc_name, dtc_severity, title, description = [part.strip() for part in parts]
            dtc_lines.append([int(num), dtc_name, dtc_severity, title, description])

# Überprüfen auf Duplikate in den DTC-Nummern und DTC-Namen
num_set = set()
dtc_name_set = set()
duplicates = []

for line in dtc_lines:
    num, dtc_name, _, _, _ = line
    if num in num_set:
        duplicates.append(f"DTC-Nummer {num} ist ein Duplikat.")
    else:
        num_set.add(num)

    if dtc_name in dtc_name_set:
        duplicates.append(f"DTC-Name '{dtc_name}' ist ein Duplikat.")
    else:
        dtc_name_set.add(dtc_name)

if duplicates:
    for duplicate in duplicates:
        print(f"Fehler: {duplicate}")
    raise ValueError("Duplicate DTC Data detected")

# Suchen nach DTC_NO_DTC und DTC_LAST_DTC
dtc_no_dtc_added = False
dtc_last_dtc_line = None

for line in dtc_lines:
    _, dtc_name, _, _, _ = line
    if dtc_name == "DTC_NO_DTC":
        dtc_no_dtc_added = True
    elif dtc_name == "DTC_LAST_DTC":
        dtc_last_dtc_line = line

# Einen DTC für DTC_NO_DTC hinzufügen (wenn nicht vorhanden)
if not dtc_no_dtc_added:
    dtc_lines.insert(0, [0, "DTC_NO_DTC", "DTC_NONE", "No Error", "No Error"])

# Falls DTC_LAST_DTC existiert, lösche es
if dtc_last_dtc_line:
    dtc_lines.remove(dtc_last_dtc_line)

# Einen DTC für DTC_LAST_DTC hinzufügen (mit der höchsten Nummer)
if dtc_lines:
    highest_num = max([line[0] for line in dtc_lines])
else:
    highest_num = 0

dtc_lines.append([highest_num + 1, "DTC_LAST_DTC", "DTC_NONE", "Last Error", "Last Error"])

# Sortieren der Zeilen nach der Nummer aufsteigend
dtc_lines.sort(key=lambda x: x[0])

# DTC_NAME_CONSTANT-Makros initialisieren
dtc_macros = []
dtc_structs = []
dtc_table_data = []

# Verarbeiten der sortierten Zeilen
for i, line in enumerate(dtc_lines):
    num, dtc_name, dtc_severity, title, description = line
    dtc_macros.append(f"#define {dtc_name:<30} {num}")
    comma = "," if i < len(dtc_lines) - 1 else " "
    dtc_structs.append(f"    {{ {dtc_name:<30}, {dtc_severity:<12} }}{comma} // {description}")
    dtc_table_data.append({"num": num, "title": title, "description": description})

# Unix-Zeitstempel hinzufügen
timestamp = int(time.time())

# Headerdatei schreiben
with open(output_file, "w") as f:
    f.write(f"// Auto-generated by script on {time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(timestamp))}\n")
    f.write(f"#ifndef DTC_DEFS_H\n")
    f.write(f"#define DTC_DEFS_H\n\n")
    f.write("#include <stdint.h>\n\n")
    
    f.write("typedef uint32_t DTCNum_t;\n\n")

    f.write("typedef enum\n")
    f.write("{\n")
    f.write("  DTC_INACTIVE,\n")
    f.write("  DTC_ACTIVE,\n")
    f.write("  DTC_PREVIOUS\n")
    f.write("} DTCActive_t;\n\n")

    f.write("typedef enum\n")
    f.write("{\n")
    f.write("  DTC_NONE,\n")
    f.write("  DTC_INFO,\n")
    f.write("  DTC_WARN,\n")
    f.write("  DTC_CRITICAL\n")
    f.write("} DTCSeverity_t;\n\n")

    f.write("typedef struct {\n")
    f.write("  DTCNum_t code;\n")
    f.write("  DTCSeverity_t severity;\n")
    f.write("} DTC_t;\n\n")

    # Füge die DTC_NAME_CONSTANT #define hinzu
    f.write("\n".join(dtc_macros) + "\n\n")

    f.write(f"const DTC_t dtc_definitions[] = {{\n")
    f.write(",\n".join(dtc_structs) + "\n")
    f.write("};\n\n")
    f.write(f"const uint32_t dtc_generation_timestamp = {timestamp};\n\n")
    f.write("#endif // DTC_DEFS_H\n")

print(f"Header-Datei wurde erstellt: {output_file}")

# JSON-Datei mit UTF-8-Zeichencodierung erstellen
with open(json_output_file, 'w', encoding='utf-8') as json_f:
    json.dump(dtc_table_data, json_f, ensure_ascii=False, indent=4, separators=(',', ': '))

print(f"JSON-Datei wurde erstellt: {json_output_file}")