# Path Configuration
from tools.preprocess import *

# Processing context
trait = "Sjögrens_Syndrome"
cohort = "GSE93683"

# Input paths
in_trait_dir = "../DATA/GEO/Sjögrens_Syndrome"
in_cohort_dir = "../DATA/GEO/Sjögrens_Syndrome/GSE93683"

# Output paths
out_data_file = "./output/preprocess/3/Sjögrens_Syndrome/GSE93683.csv"
out_gene_data_file = "./output/preprocess/3/Sjögrens_Syndrome/gene_data/GSE93683.csv"
out_clinical_data_file = "./output/preprocess/3/Sjögrens_Syndrome/clinical_data/GSE93683.csv"
json_path = "./output/preprocess/3/Sjögrens_Syndrome/cohort_info.json"

# Get file paths
soft_file_path, matrix_file_path = geo_get_relevant_filepaths(in_cohort_dir)

# Get background info and clinical data
background_info, clinical_data = get_background_and_clinical_data(matrix_file_path)
print("Background Information:")
print(background_info)
print("\nSample Characteristics:")

# Get dictionary of unique values per row 
unique_values_dict = get_unique_values_by_row(clinical_data)
for row, values in unique_values_dict.items():
    print(f"\n{row}:")
    print(values)
# Check gene expression data availability
is_gene_available = True  # Background info indicates genome-wide transcriptome arrays were used

# Identify row indices for clinical features
trait_row = 0  # Disease state: HC/pSS indicates trait data
age_row = None  # Age not available
gender_row = 3  # Gender information available but constant

# Data type conversion functions
def convert_trait(value: str) -> Optional[int]:
    # Extract value after colon and strip whitespace
    if ':' in value:
        value = value.split(':')[1].strip()
    if value.lower() == 'hc':
        return 0  # Control 
    elif value.lower() == 'pss':
        return 1  # Sjögren's syndrome
    return None

def convert_gender(value: str) -> Optional[int]:
    # Extract value after colon and strip whitespace
    if ':' in value:
        value = value.split(':')[1].strip()
    if value.lower() == 'female':
        return 0
    elif value.lower() == 'male':
        return 1
    return None

# Initial validation and metadata saving
is_trait_available = trait_row is not None
validate_and_save_cohort_info(is_final=False, 
                            cohort=cohort,
                            info_path=json_path,
                            is_gene_available=is_gene_available,
                            is_trait_available=is_trait_available)

# Extract clinical features if trait data is available 
if trait_row is not None:
    clinical_df = geo_select_clinical_features(clinical_df=clinical_data,
                                             trait=trait,
                                             trait_row=trait_row,
                                             convert_trait=convert_trait,
                                             age_row=None,
                                             convert_age=None,
                                             gender_row=None,  # Gender is constant (all female)
                                             convert_gender=None)
    
    # Preview the processed clinical data
    print("Preview of processed clinical data:")
    print(preview_df(clinical_df))
    
    # Save clinical data
    clinical_df.to_csv(out_clinical_data_file)
# Get gene expression data from matrix file
genetic_data = get_genetic_data(matrix_file_path)

# Examine data structure
print("Data structure and head:")
print(genetic_data.head())

print("\nShape:", genetic_data.shape)

print("\nFirst 20 row IDs (gene/probe identifiers):")
print(list(genetic_data.index)[:20])

# Get a few column names to verify sample IDs
print("\nFirst 5 column names:")
print(list(genetic_data.columns)[:5])
# The gene expression matrix contains probe identifiers (e.g., '1007_s_at') from Affymetrix microarray platform
# These are not standard human gene symbols and need to be mapped
requires_gene_mapping = True
# Extract gene annotation data
gene_annotation = get_gene_annotation(soft_file_path)

# Preview column names and values from annotation dataframe
print("Gene annotation DataFrame preview:")
print(preview_df(gene_annotation))
# Get mapping between probe IDs and gene symbols
mapping_data = get_gene_mapping(gene_annotation, prob_col='ID', gene_col='Gene Symbol')

# Convert probe-level data to gene-level data 
gene_data = apply_gene_mapping(genetic_data, mapping_data)

# Show preview of mapped gene data
print("Preview of gene expression data after mapping:")
print(gene_data.head())
print("\nShape after mapping:", gene_data.shape)
# 1. Normalize gene symbols in gene expression data
gene_data = normalize_gene_symbols_in_index(gene_data)
os.makedirs(os.path.dirname(out_gene_data_file), exist_ok=True)
gene_data.to_csv(out_gene_data_file)
print("\nGene data shape (normalized gene-level):", gene_data.shape) 

# Load clinical data previously processed
selected_clinical_df = pd.read_csv(out_clinical_data_file, index_col=0)
print("\nClinical data shape:", selected_clinical_df.shape)

# 2. Link clinical and genetic data using normalized gene-level data
linked_data = geo_link_clinical_genetic_data(selected_clinical_df, gene_data)
print("\nLinked data shape:", linked_data.shape)

# 3. Handle missing values systematically  
if trait in linked_data.columns:
    linked_data = handle_missing_values(linked_data, trait)

    # 4. Check for bias in trait and demographic features
    trait_biased, linked_data = judge_and_remove_biased_features(linked_data, trait)

    # 5. Final validation and information saving
    note = "Data was successfully preprocessed from probe-level to gene-level expression using gene symbol normalization with NCBI Gene database."
    is_usable = validate_and_save_cohort_info(
        is_final=True,
        cohort=cohort, 
        info_path=json_path,
        is_gene_available=True,
        is_trait_available=True,
        is_biased=trait_biased,
        df=linked_data,
        note=note
    )

    # 6. Save linked data only if usable and not biased
    if is_usable and not trait_biased:
        os.makedirs(os.path.dirname(out_data_file), exist_ok=True)
        linked_data.to_csv(out_data_file)